A Synopsis of the Orthotrichaceae

Bryophyta — 781 accepted species

Orthotrichaceae Arn., Disp. Méth. Mousses: 13. 1825. (Arnott 1825)
- =Zygodontaceae Schimp., Coroll. Bryol. Eur.: 39. 1856. (Schimper 1856; Goffinet & Vitt 1998)
- =Macromitriaceae S.P. Churchill, Bibliot. José Jerónimo Triana 12: 588. 1995. (Churchill & Linares Castillo 1995; Goffinet & Vitt 1998)
Atlantichella F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 12, 15. 2021. (Draper et al. 2021)
Atlantichella calvescens (Carrington) F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 15. 2021. (Draper et al. 2021)

Basionym: Ulota calvescens Carrington, Bryoth. Eur. 11: 520. 1862. (Rabenhorst 1862; Draper et al. 2021)

≡Orthotrichum calvescens (Carrington) Carrington, Trans. Bot. Soc. Edinburgh 7: 386. 1866. (Draper et al. 2021) ≡Weissia calvescens (Carrington) Braithw., Brit. Moss Fl. 2: 266. 1895. (Braithwaite 1887-1905; Draper et al. 2021)
- =Ulota vittata Mitt., J. Linn. Soc., Bot. 8: 3. 1865[1864]. (Mitten 1865; Corley et al. 1981) ≡Orthotrichum vittatum (Mitt.) Mitt., Nat. Hist. Azores: 299. 1870. (Mitten 1870; Corley et al. 1981) ≡Weissia vittata (Mitt.) Lindb., J. Bot. 11: 200, 202. 1873. (Corley et al. 1981)
Aureomacromitrium D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 941. 2023. (Valente et al. 2023)
Aureomacromitrium catharinense (Paris) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 941. 2023. (Valente et al. 2023)

Basionym: Macromitrium catharinense Paris, Index Bryol. Suppl.: 237. 1900. (Valente et al. 2023)

≡Macromitrium prolongatum Müll. Hal., Bull. Herb. Boissier 6: 99. 1898, nom. illeg. (Müller 1898a; Valente et al. 2023)
- =Macromitrium prolongatum var. gracilius Müll. Hal., Bull. Herb. Boissier 6: 100. 1898. (Müller 1898a) ≡Macromitrium catharinense var. gracilius (Müll. Hal.) Paris, Index Bryol. Suppl.: 237. 1900. (Li et al. 2019)
- =Macromitrium schiffneri Broth., Ergebn. Bot. Exp. Südbras., Musci: 290. 1924. (Valente et al. 2020)
- =Macromitrium drewii H. Rob., Bryologist 70: 320. 1967. (Robinson 1967; Li et al. 2019)
Australoria F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 10–11, 15. 2021. (Draper et al. 2021)
Australoria bartramioides (Malta) F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 15. 2021. (Draper et al. 2021)

Basionym: Zygodon bartramioides Malta, Latv. Univ. Raksti 10: 322. 1924. (Malta 1924; Draper et al. 2021)
- =Zygodon tristis Herzog, Rev. Bryol. Lichénol. 29: 199. 1961. (Herzog 1960; Calabrese 2006)
Australoria chilensis (Calabrese & F. Lara) F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 15. 2021. (Draper et al. 2021)

Basionym: Zygodon chilensis Calabrese & F. Lara, J. Bryol. 28: 97. 2006. (Calabrese et al. 2006; Draper et al. 2021)
Bryomyces Miq., Bull. Sci. Phys. Nat. Néerl. 1839: 37. 1839. (Miquel 1839a; Miquel 1841)
Bryomyces elegans Miq., Bull. Sci. Phys. Nat. Néerl. 1839: 38. 1839. (Miquel 1839a)
Bryomyces montagneanus Miq., Bull. Sci. Phys. Nat. Néerl. 1839: 453. 1839. (Miquel 1839b)
Cardotiella Vitt, J. Hattori Bot. Lab. 49: 101. 1981. (Vitt 1981)
Cardotiella appendiculata (Renauld & Cardot) Vitt, J. Hattori Bot. Lab. 49: 101. 1981. (Vitt 1981)

Basionym: Coleochaetium appendiculatum Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 33(2): 120. 1894[1895]. (Renauld & Cardot 1895)

≡Macromitrium appendiculatum (Renauld & Cardot) Paris, Index Bryol.: 771. 1897. ≡Leiomitrium appendiculatum (Renauld & Cardot) Cardot, Hist. Phys. Madagascar, Mousses: 231. 1915. (Renauld & Cardot 1915)
Cardotiella elimbata (Thér.) Goffinet, Bryologist 99: 390. 1996. (Goffinet 1996)

Basionym: Micromitrium elimbatum Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 113. 1929. (Thériot 1929a)

≡Groutiella elimbata (Thér.) O'Shea, Trop. Bryol. 10: 95. 1995. (O'Shea 1995)
Cardotiella quinquefaria (Hornsch.) Vitt, J. Hattori Bot. Lab. 49: 102. 1981. (Vitt 1981)

Basionym: Macromitrium quinquefarium Hornsch., Fl. Bras. 1(2): 26. 1840. (Hornschuch 1840)
- =Anomodon scaberrimus Broth., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 21, Afd. 3(3): 65. 1895. (Brotherus 1895a; Vitt 1981) ≡Coleochaetium scaberrimum (Broth.) Broth., Nat. Pflanzenfam., ed. 2, 11: 26. 1925. (Brotherus 1925; Vitt 1981) ≡Leiomitrium scaberrimum (Broth.) Wijk & Margad., Taxon 8: 73. 1959. (Wijk & Margadant 1959; Vitt 1981) ≡Macrocoma scaberrima (Broth.) Vitt, Bryologist 82: 16. 1979. (Vitt 1979a; Vitt 1981)
- =Coleochaetium standleyi E.B. Bartram, Bryologist 47: 21. 1944. (Grout 1944; Vitt 1981) ≡Leiomitrium standleyi (E.B. Bartram) Grout, N. Amer. Fl. 15A: 62. 1946. (Grout 1946; Vitt 1981)
Cardotiella renauldii (Broth.) Vitt, J. Hattori Bot. Lab. 49: 103. 1981. (Vitt 1981)

Basionym: Coleochaetium renauldii Broth., Reise Ostafr., Syst. Arbeit. 3: 56. 1908. (Brotherus 1908a)

≡Leiomitrium renauldii (Broth.) Cardot, Hist. Phys. Madagascar, Mousses: 232. 1915. (Renauld & Cardot 1915)
Cardotiella secunda (Müll. Hal.) Vitt, J. Hattori Bot. Lab. 49: 105. 1981. (Vitt 1981)

Basionym: Macromitrium secundum Müll. Hal., Bot. Zeitung (Berlin) 14: 420. 1856. (Müller 1856)

≡Coleochaetium secundum (Müll. Hal.) Broth., Nat. Pflanzenfam. I(3): 475. 1902.
- =Macromitrium rugifolium Müll. Hal., Hedwigia 38: 115. 1899, nom. illeg. (Müller 1899; Magill & van Rooy 1998) ≡Macromitrium schlotheimiiforme Paris, Index Bryol. Suppl.: 241. 1900. (Magill & van Rooy 1998) ≡Coleochaetium rugifolium Broth., Nat. Pflanzenfam. I(3): 475. 1902, nom. illeg. (Magill & van Rooy 1998) ≡Cardotiella schlotheimiiformis (Paris) Vitt, J. Hattori Bot. Lab. 49: 103. 1981. (Vitt 1981; Magill & van Rooy 1998)
Cardotiella subappendiculata (Broth.) Vitt, J. Hattori Bot. Lab. 49: 105. 1981. (Vitt 1981)

Basionym: Coleochaetium subappendiculatum Broth., Reise Ostafr., Syst. Arbeit. 3: 56. 1908. (Brotherus 1908a)

≡Leiomitrium subappendiculatum (Broth.) Cardot, Hist. Phys. Madagascar, Mousses: 231. 1915. (Renauld & Cardot 1915)
Ceuthotheca Lewinsky, Lindbergia 19: 18. 1994. (Lewinsky-Haapasaari 1994)
Ceuthotheca cryptocarpa (E.B. Bartram) Lewinsky, Lindbergia 19: 18. 1994. (Lewinsky-Haapasaari 1994)

Basionym: Pleurorthotrichum cryptocarpum E.B. Bartram, Ann. Bryol. 11: 25. 1938. (Bartram 1938)
Codonoblepharon Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 142. 1824. (Schwägrichen 1824; Hodgetts et al. 2020)
- =Amphidium Nees, Flora 1(31): 526. 1818. (Funck 1818; Wijk et al. 1959)
- =Euzygodon Jur., Laubm.-Fl. Oesterr.-Ung.: 191. 1882. (Juratzka 1882; Goffinet et al. 2004)
Codonoblepharon forsteri (Dicks.) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 286. 2004. (Goffinet et al. 2004; Hodgetts et al. 2020)

Basionym: Bryum forsteri Dicks., Fasc. Pl. Crypt. Brit. 4: [29]. 1801. (Dickson 1801; Goffinet et al. 2004)

≡Grimmia forsteri (Dicks.) Sm., Fl. Brit. 3: 1196. 1804. (Smith 1804; Goffinet et al. 2004) ≡Weissia forsteri (Dicks.) Brid., Muscol. Recent. Suppl. 1: 124. 1806. (Bridel 1806–1817; Goffinet et al. 2004) ≡Zygodon forsteri (Dicks.) Mitt., Ann. Mag. Nat. Hist., ser. 2, 8: 321. 1851. (Mitten 1851a; Goffinet et al. 2004) ≡Euzygodon forsteri (Dicks.) Jur., Laubm.-Fl. Oesterr.-Ung.: 199. 1882. (Juratzka 1882; Goffinet et al. 2004)
- =Amphidium pulvinatum Nees, Flora 1(31): 526. 1818. (Funck 1818; Wijk et al. 1959)
- =Gagea compacta Raddi, Opusc. Sci. 2(6): 361. 1819. (Wijk et al. 1962)
- =Zygodon conoideus Schwägr., Sp. Musc. Frond., Suppl. 2, 1(1): 158. 1823, nom. illeg. (Schwägrichen 1824; Wijk et al. 1969)
- =Zygodon conoideus var. succulentus Hook. & Grev., Edinburgh J. Sci. 1: 132. 1824. (Hooker & Greville 1824; Podpěra 1954) ≡Zygodon conoideus var. sehlmeyeri Huebener, Muscol. Germ.: 386. 1833, nom. illeg. (Huebener 1833)
- =Zygodon cesatii De Not., Comment. Soc. Crittog. Ital. 2(2): 104 [‘204’]. 1865. (De Notaris 1865; Wijk et al. 1969) ≡Zygodon forsteri var. cesatii (De Not.) Venturi & Bott., Atti Soc. Crittog. Ital. 3: 177. 1884.
- =Euzygodon sendtneri Jur., Laubm.-Fl. Oesterr.-Ung.: 199. 1882. (Juratzka 1882; Wijk et al. 1962) ≡Zygodon sendtneri (Jur.) Venturi & Bott., Atti Soc. Crittog. Ital. 3: 178. 1884. (Wijk et al. 1962) ≡Zygodon forsteri subsp. sendtneri (Jur.) Kindb., Eur. N. Amer. Bryin. 2: 316. 1897[1898]. (Kindberg 1897) ≡Zygodon forsteri var. sendtneri (Jur.) Dixon, Stud. Handb. Brit. Mosses (ed. 3): 260. 1924. (Dixon 1924b)
- =Zygodon madeirensis Dixon & Luisier, Brotéria, Ci. Nat. 8: 49. 1939. (Düll 1992)
Codonoblepharon gracillimum (Broth. ex M. Fleisch.) Matcham & O'Shea, J. Bryol. 27: 130. 2005. (Matcham & O'Shea 2005)

Basionym: Zygodon gracillimus Broth. ex M. Fleisch., Musci Buitenzorg 2: 392. 1904. (Fleischer 1904)
- =Zygodon inconspicuus Herzog, Beih. Bot. Centralbl., Abt. 2, 26(2): 67. 1909. (Herzog 1909; Churchill et al. 2000)
- =Zygodon rodwayi Broth., Pap. & Proc. Roy. Soc. Tasmania 1913: 260. 1914. (Lewinsky 1989a)
- =Zygodon subminutus Broth. ex Dixon, New Zealand Inst. Bull. 3(4): 167. 1926. (Dixon 1926; Allen 2002)
Codonoblepharon menziesii Schwägr., Sp. Musc. Frond., Suppl. 2, (1,2): 142. 1824. (Schwägrichen 1824; Matcham & O'Shea 2005)

≡Zygodon menziesii (Schwägr.) Arn., Disp. Méth. Mousses: 15. 1825.
- =Zygodon drummondii Taylor, London J. Bot. 5: 46. 1846. (Taylor 1846; Calabrese 2006)
- =Zygodon corralensis Lorentz, Bot. Zeitung (Berlin) 24: 187. 1866. (Calabrese 2006) ≡Ceratodon corralensis (Lorentz) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1870–71: 461. 1872. (Jaeger 1872; Matcham & O'Shea 2005)
- =Bryum oamaruense R. Br. bis, Trans. & Proc. New Zealand Inst. 31: 447. 1899. (Matcham & O'Shea 2005)
- =Zygodon menziesii var. angustifolius Malta, Latv. Univ. Raksti 10: 317. 1924. (Malta 1924) ≡Codonoblepharon menziesii var. angustifolium (Malta) Matcham & O'Shea, J. Bryol. 27: 131. 2005. (Matcham & O'Shea 2005; Calabrese 2006)
Codonoblepharon microtheca (Dixon ex Malta) Matcham & O'Shea, J. Bryol. 27: 132. 2005. (Matcham & O'Shea 2005)

Basionym: Zygodon microtheca Dixon ex Malta, Latv. Univ. Raksti 10: 315. 1924. (Malta 1924)
- =Zygodon dixonii Sim, Trans. Roy. Soc. South Africa 15: 271. 1926. (Sim 1926; Matcham & O'Shea 2005)
Codonoblepharon minutum (Müll. Hal. & Hampe) Matcham & O'Shea, J. Bryol. 27: 132. 2005. (Matcham & O'Shea 2005)

Basionym: Zygodon minutus Müll. Hal. & Hampe, Linnaea 28: 209. 1856. (Hampe & Müller 1856)
- =Zygodon mucronatus Broth., Trans. & Proc. New Zealand Inst. 29: 441. 1896. (Lewinsky 1989a)
Codonoblepharon novoguinense (E.B. Bartram) Matcham & O'Shea, J. Bryol. 27: 132. 2005. (Matcham & O'Shea 2005)

Basionym: Zygodon novoguinensis E.B. Bartram, Lloydia 5: 268. 1942. (Bartram 1942a)
Codonoblepharon pungens (Müll. Hal.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 119. 1874. (Jaeger 1874)

Basionym: Zygodon pungens Müll. Hal., Bot. Zeitung (Berlin) 20: 361. 1862. (Müller 1862)
- =Zygodon humilis Thwaites & Mitt., J. Linn. Soc., Bot. 13: 304. 1873. (Mitten 1873b; Matcham & O'Shea 2005)
- =Zygodon parvulus Geh. & Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 95. 1879. (Matcham & O'Shea 2005)
Desmotheca Lindb., J. Linn. Soc., Bot. 13: 184. 1872, nom. cons. (Lindberg 1873)

Replaced synonym: Cryptocarpon Dozy & Molk., Musc. Frond. Archip. Ind.: 5. 1844, nom. rej. (Dozy & Molkenboer 1844)

≡Cryptocarpella Trevis., Mem. Reale Ist. Lombardo Sci., Ser. 3, Cl. Sci. Mat. 13: 444. 1877, nom. illeg.
Desmotheca apiculata (Dozy & Molk.) Lindb. ex Cardot, Ann. Jard. Bot. Buitenzorg, Suppl. 1: 11. 1897. (Cardot 1897)

Basionym: Cryptocarpon apiculatum Dozy & Molk., Musc. Frond. Archip. Ind.: 5. 1844. (Dozy & Molkenboer 1844)
- =Cryptocarpon cymosum Mitt., Fl. Vit.: 381. 1873. (Mitten 1873a; Vitt 1990) ≡Desmotheca cymosa (Mitt.) Paris, Index Bryol. Suppl.: 114. 1900. (Vitt 1990)
- =Cryptocarpon cuspidatum Müll. Hal., Hedwigia 37: 141. 1898. (Müller 1898c; Vitt 1990) ≡Desmotheca cuspidata (Müll. Hal.) Paris, Index Bryol. Suppl.: 114. 1900. (Vitt 1990)
- =Cryptocarpon manii Müll. Hal., Hedwigia 37: 141. 1898. (Müller 1898c; Eddy 1996) ≡Desmotheca manii (Müll. Hal.) Paris, Index Bryol. Suppl.: 114. 1900. (Eddy 1996)
Desmotheca brachiata (Hook. & Wilson) Vitt, Trop. Bryol. 3: 84. 1990. (Vitt 1990)

Basionym: Macromitrium brachiatum Hook. & Wilson, Icon. Pl. 8(1): pl. 746B. 1845. (Hooker 1848)

≡Cryptocarpon brachiatum (Hook. & Wilson) Mitt., Fl. Vit.: 381. 1873. (Mitten 1873a)
- =Orthotrichum coralloides Duby, Flora 60: 74. 1877. (Eddy 1996) ≡Desmotheca coralloides (Duby) Broth., Nat. Pflanzenfam. I(3): 475. 1902. (Eddy 1996)
- =Cryptocarpon glaucum Müll. Hal., Hedwigia 37: 142. 1898. (Müller 1898c; Eddy 1996) ≡Desmotheca glauca (Müll. Hal.) Paris, Index Bryol. Suppl.: 114. 1900. (Eddy 1996)
Groutiella Steere, Bryologist 53(2): 145. 1950. (Crum & Steere 1950; Yu & Jia 2023)

Replaced synonym: Macromitrium sect. Micromitrium Mitt., J. Linn. Soc., Bot. 12: 197. 1869. (Mitten 1869)

≡Micromitrium (Mitt.) Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 190. 1872, nom. illeg. (Bescherelle 1872) ≡Craspedophyllum Grout, N. Amer. Fl. 15A(1): 38. 1946, nom. illeg. (Grout 1946)
Groutiella apiculata (Hook.) H.A. Crum & Steere, Bryologist 53: 146. 1950. (Crum & Steere 1950; Yu & Jia 2023)

Basionym: Orthotrichum apiculatum Hook., Musci Exot. 1: pl. 45. 1818. (Hooker 1818)

≡Leiotheca apiculata (Hook.) Brid., Bryol. Univ. 1: 734. 1826. (Bridel 1826) ≡Macromitrium apiculatum (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 58. 1826. (Schwägrichen 1826) ≡Micromitrium apiculatum (Hook.) Grout, Bryologist 47: 3. 1944. (Grout 1944) ≡Craspedophyllum apiculatum (Hook.) Grout, N. Amer. Fl. 15A: 40. 1946. (Grout 1946)
- =Orthotrichum mucronifolium Hook. & Grev., Edinburgh J. Sci. 1: 116. 1824. (Hooker & Greville 1824; Yu & Jia 2023) ≡Macromitrium mucronifolium (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 60. 1826. (Schwägrichen 1826; Yu & Jia 2023) ≡Leiotheca mucronifolia (Hook. & Grev.) Brid., Bryol. Univ. 1: 795. 1827. (Bridel 1827a; Yu & Jia 2023) ≡Schlotheimia mucronifolia (Hook. & Grev.) Kindb., Eur. N. Amer. Bryin. 2: 314. 1897[1898]. (Kindberg 1897; Yu & Jia 2023) ≡Micromitrium mucronifolium (Hook. & Grev.) Grout, Bryologist 47: 3. 1944. (Grout 1944; Yu & Jia 2023) ≡Craspedophyllum mucronifolium (Hook. & Grev.) Grout, N. Amer. Fl. 15A: 39. 1946. (Grout 1946; Yu & Jia 2023) ≡Groutiella mucronifolia (Hook. & Grev.) H.A. Crum & Steere, Bryologist 53: 146. 1950. (Crum & Steere 1950; Yu & Jia 2023)
- =Macromitrium macrostomum Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 132. 1827. (Schwägrichen 1827; Sharp et al. 1994)
- =Macromitrium elegans Hornsch., Fl. Bras. 1(2): 24. 1840. (Wijk et al. 1964)
- =Macromitrium brevipes Müll. Hal., Syn. Musc. Frond. 1: 728. 1849. (Müller 1849; Sharp et al. 1994)
- =Macromitrium wagnerianum Müll. Hal., Syn. Musc. Frond. 2: 642. 1851. (Müller 1851; Yu & Jia 2023) ≡Micromitrium wagnerianum (Müll. Hal.) Paris, Index Bryol. (ed. 2) 3: 242. 1905. (Paris 1904-1906; Yu & Jia 2023) ≡Craspedophyllum wagnerianum (Müll. Hal.) Grout, N. Amer. Fl. 15A: 41. 1946. (Grout 1946; Yu & Jia 2023) ≡Groutiella wagneriana (Müll. Hal.) H.A. Crum & Steere, Bryologist 53: 146. 1950. (Crum & Steere 1950; Yu & Jia 2023)
- =Macromitrium homaloblastum Herzog, Hedwigia 57: 247. 1916. (Herzog 1916b; Churchill et al. 2009)
Groutiella chimborazensis (Spruce ex Mitt.) Florsch., Fl. Suriname 6(1): 215. 1964. (Florschütz 1964; Yu & Jia 2023)

Basionym: Macromitrium chimborazense Spruce ex Mitt., J. Linn. Soc., Bot. 12: 218. 1869. (Mitten 1869)

≡Micromitrium chimborazense (Spruce ex Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 157. 1874. (Jaeger 1874)
- =Macromitrium lamprocarpum Müll. Hal. ex Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 158. 1893. (Sharp et al. 1994) ≡Micromitrium lamprocarpum (Müll. Hal. ex Renauld & Cardot) Paris, Index Bryol. (ed. 2) 3: 241. 1905. (Paris 1904-1906; Sharp et al. 1994)
- =Macromitrium durandii Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 159. 1893. (Allen 2002)
- =Macromitrium orthotrichaceum Müll. Hal., Bull. Herb. Boissier 5: 197. 1897, nom. dub. (Müller 1897a; Bartram 1949) ≡Micromitrium orthotrichaceum (Müll. Hal.) Paris, Index Bryol. (ed. 2) 3: 241. 1905, nom. dub. (Paris 1904-1906; Bartram 1949)
- =Macromitrium semimarginatum Müll. Hal., Bull. Herb. Boissier 5: 197. 1897. (Müller 1897a; Goffinet 1993)
- =Macromitrium adnatum Müll. Hal., Bull. Herb. Boissier 6: 96. 1898. (Müller 1898a; Valente et al. 2020)
- =Macromitrium densifolium Cardot, Rev. Bryol. 36: 108. 1909, nom. illeg. (Cardot 1909b; Sharp et al. 1994) ≡Macromitrium pycnophyllum Cardot, Rev. Bryol. 37: 13. 1910. (Cardot 1910; Sharp et al. 1994) ≡Micromitrium densifolium Broth., Nat. Pflanzenfam., ed. 2, 11: 45. 1925. (Brotherus 1925; Sharp et al. 1994)
- =Macromitrium undosum Cardot, Rev. Bryol. 36: 108. 1909. (Cardot 1909b; Allen 2002) ≡Micromitrium undosum (Cardot) Broth., Nat. Pflanzenfam., ed. 2, 11: 45. 1925. (Brotherus 1925; Allen 2002) ≡Craspedophyllum undosum (Cardot) Grout, N. Amer. Fl. 15A: 41. 1946. (Grout 1946; Allen 2002) ≡Groutiella undosa (Cardot) H.A. Crum & Steere, Bryologist 53: 147. 1950. (Crum & Steere 1950; Allen 2002)
Groutiella husnotii (Schimp. ex Besch.) H.A. Crum & Steere, Bryologist 53: 147. 1950. (Crum & Steere 1950; Yu & Jia 2023)

Basionym: Macromitrium husnotii Schimp. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 3: 200. 1876. (Bescherelle 1876)

≡Micromitrium husnotii (Schimp. ex Besch.) Grout, Bryologist 47: 2. 1944. (Grout 1944) ≡Craspedophyllum husnotii (Schimp. ex Besch.) Grout, N. Amer. Fl. 15A: 38. 1946. (Grout 1946)
Groutiella macrorrhyncha (Mitt. ex Bosch & Sande Lac.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu & Jia 2023)

Basionym: Macromitrium macrorrhynchum Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 133. 1860. (Dozy & Molkenboer 1861)

≡Micromitrium macrorrhynchum (Mitt. ex Bosch & Sande Lac.) M. Fleisch., Musci Buitenzorg 2: 459. 1904.
- =Micromitrium maracaibense Broth., Mitt. Inst. Allg. Bot. Hamburg 8: 403. 1931. (Brotherus 1931; Yu & Jia 2023) ≡Groutiella maracaibensis (Broth.) B.H. Allen & Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 544. 2002. (Allen 2002; Yu & Jia 2023)
Groutiella obtusa (Mitt.) Florsch., Fl. Suriname 6(1): 210. 1964. (Florschütz 1964; Yu & Jia 2023)

Basionym: Macromitrium obtusum Mitt., J. Linn. Soc., Bot. 12: 201. 1869. (Mitten 1869)
- =Schlotheimia macromitrioides Müll. Hal., Malpighia 10: 513. 1896. (Müller 1896b; Florschütz 1964)
- =Micromitrium rugosum Grout, Bryologist 47: 3. 1944. (Grout 1944; Allen 2002) ≡Craspedophyllum rugosum (Grout) Grout, N. Amer. Fl. 15A: 40. 1946. (Grout 1946; Allen 2002) ≡Groutiella rugosa (Grout) H.A. Crum & Steere, Bryologist 53: 147. 1950. (Crum & Steere 1950; Allen 2002)
Groutiella reesei (Vitt) B.H. Allen, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 551. 2002. (Allen 2002; Yu & Jia 2023)

Basionym: Groutiella chimborazensis subsp. reesei Vitt, Bryologist 82: 7. 1979. (Vitt 1979a)
Groutiella tomentosa (Hornsch.) Wijk & Margad., Taxon 9(2): 51. 1960. (Wijk & Margadant 1960b; Yu & Jia 2023)

Basionym: Macromitrium tomentosum Hornsch., Fl. Bras. 1(2): 21. 1840. (Hornschuch 1840)

≡Micromitrium tomentosum (Hornsch.) Paris, Index Bryol. (ed. 2) 3: 242. 1905. (Paris 1904-1906)
- =Schlotheimia goniorrhyncha Dozy & Molk., Pl. Jungh. 3: 338. 1854. (Eddy 1996) ≡Macromitrium goniorrhynchum (Dozy & Molk.) Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 53. 1859. (Mitten 1859b; Eddy 1996) ≡Micromitrium goniorrhynchum (Dozy & Molk.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 157. 1874. (Jaeger 1874; Eddy 1996) ≡Groutiella goniorrhyncha (Dozy & Molk.) E.B. Bartram, Rev. Bryol. Lichénol. 23: 250. 1954. (Bartram 1954; Eddy 1996)
- =Macromitrium fragile Mitt., J. Linn. Soc., Bot. 12: 218. 1869, nom. illeg. (Mitten 1869; Allen 2002) ≡Micromitrium fragile A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 157. 1874. (Jaeger 1874; Sharp et al. 1994) ≡Craspedophyllum fragile (A. Jaeger) Grout, N. Amer. Fl. 15A: 39. 1946. (Grout 1946; Allen 2002) ≡Groutiella fragilis (A. Jaeger) H.A. Crum & Steere, Bryologist 53: 146. 1950. (Crum & Steere 1950; Churchill & Linares Castillo 1995)
- =Macromitrium goniorrhynchum var. glaucescens Müll. Hal., Linnaea 36: 39. 1869. (Müller 1870) ≡Micromitrium goniorrhynchum var. glaucescens (Müll. Hal.) Paris, Index Bryol.: 806. 1897. ≡Groutiella goniorrhyncha var. glaucescens (Müll. Hal.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b)
- =Micromitrium schlumbergeri Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 191. 1872. (Bescherelle 1872; Allen 2002) ≡Macromitrium schlumbergeri (Schimp. ex Besch.) Broth., Nat. Pflanzenfam. I(3): 479. 1902. (Allen 2002) ≡Groutiella schlumbergeri (Schimp. ex Besch.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Allen 2002)
- =Macromitrium laxotorquatum Müll. Hal. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 362. 1880. (Bescherelle 1879; Yu et al. 2011) ≡Micromitrium laxotorquatum (Müll. Hal. ex Besch.) Paris, Index Bryol. (ed. 2) 3: 241. 1905. (Paris 1904-1906; Yu et al. 2011) ≡Groutiella laxotorquata (Müll. Hal. ex Besch.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu et al. 2011)
- =Macromitrium sarcotrichum Müll. Hal. ex Broth., Bot. Jahrb. Syst. 24: 242. 1897. (Brotherus 1897; Yu et al. 2011) ≡Micromitrium sarcotrichum (Müll. Hal. ex Broth.) Paris, Index Bryol. (ed. 2) 3: 241. 1905. (Paris 1904-1906; Yu et al. 2011) ≡Groutiella sarcotricha (Müll. Hal. ex Broth.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu et al. 2011)
- =Macromitrium thraustophyllum Müll. Hal. ex Broth., Bot. Jahrb. Syst. 24: 242. 1897. (Brotherus 1897; Yu & Jia 2023) ≡Micromitrium thraustophyllum (Müll. Hal. ex Broth.) Paris, Index Bryol. (ed. 2) 3: 241. 1905. (Paris 1904-1906; Yu & Jia 2023) ≡Groutiella thraustophylla (Müll. Hal. ex Broth.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu & Jia 2023)
- =Macromitrium diffractum Cardot, Rev. Bryol. 28: 113. 1901. (Cardot 1901; Sharp et al. 1994)
- =Macromitrium limbatulum Broth. & Paris, Rev. Bryol. 29: 67. 1902. (Yu et al. 2011) ≡Micromitrium limbatulum (Broth. & Paris) Paris, Mém. Soc. Bot. France 14: 26. 1908. (Yu et al. 2011) ≡Groutiella limbatula (Broth. & Paris) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu et al. 2011)
- =Macromitrium pleurosigmoideum Paris & Broth., Rev. Bryol. 29: 68. 1902. (Yu et al. 2011) ≡Micromitrium pleurosigmoideum (Paris & Broth.) Broth., Nat. Pflanzenfam., ed. 2, 11: 45. 1925. (Brotherus 1925; Yu et al. 2011) ≡Groutiella pleurosigmoidea (Paris & Broth.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu et al. 2011)
- =Micromitrium goniorrhynchum f. exorrhizon M. Fleisch., Musci Buitenzorg 2: 459. 1904. (Fleischer 1904)
- =Macromitrium pobeguinii Paris & Broth., Rev. Bryol. 31: 44. 1904. (Yu et al. 2011) ≡Micromitrium pobeguinii (Paris & Broth.) Paris, Mém. Soc. Bot. France 14: 26. 1908. (Yu et al. 2011) ≡Groutiella pobeguinii (Paris & Broth.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu et al. 2011)
- =Macromitrium subgoniorrhynchum Broth., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 84: 391. 1908. (Yu & Jia 2023) ≡Micromitrium subgoniorrhynchum (Broth.) Broth., Nat. Pflanzenfam., ed. 2, 11: 45. 1925. (Brotherus 1925; Yu & Jia 2023) ≡Groutiella subgoniorrhyncha (Broth.) Wijk & Margad., Taxon 9: 51. 1960. (Wijk & Margadant 1960b; Yu & Jia 2023)
- =Macromitrium goniorrhynchum var. denticulatum Dixon, J. Siam Soc., Nat. Hist. Suppl. 10: 9. 1935. (Dixon 1935b)
Groutiella tuberculata B.H. Allen & I.H. Holz, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 555. 2002. (Allen 2002; Yu & Jia 2023)
Groutiella tumidula (Mitt.) Vitt, Bryologist 82(1): 9. 1979. (Vitt 1979a; Yu & Jia 2023)

Basionym: Macromitrium tumidulum Mitt., J. Linn. Soc., Bot. 12: 201. 1869. (Mitten 1869)
- =Macromitrium subapiculatum Broth., Hedwigia 45: 271. 1906. (Brotherus 1906a; Valente et al. 2020)
Leiomitrium Mitt., Philos. Trans. 168(extra vol.): 390. 1879. (Mitten 1879)
- =Orthotrichum subg. Coleochaetium Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 354. 1880. (Bescherelle 1879) ≡Coleochaetium (Besch.) Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 33(2): 121. 1895, nom. illeg.
Leiomitrium plicatum (P. Beauv.) Mitt., Philos. Trans. 168: 390. 1879. (Mitten 1879)

Basionym: Orthotrichum plicatum P. Beauv., Prodr. Aethéogam.: 81. 1805. (Palisot de Beauvois 1805)

≡Ulota plicata (P. Beauv.) Brid., Muscol. Recent. Suppl. 4: 113. 1819[1818]. (Bridel 1819) ≡Coleochaetium plicatum (P. Beauv.) Besch., Prodr. Fl. Bryol. Madagascar: 143. 1898. (Renauld 1897)
Leratia Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 14. 1909. (Brotherus 1909)

≡Leratiella Broth. & P. Syd., Just's Bot. Jahresber. 37(1): 74. 1910, nom. illeg.
- =Zygodon sect. Obtusifolii Malta, Latv. Univ. Raksti 6: 282. 1923. ≡Bryomaltaea Goffinet, Bryol. Twenty-first Cent.: 151. 1998. (Goffinet & Vitt 1998; Goffinet et al. 2004)
- =Florschuetziella Vitt, Bryologist 82: 16. 1979. (Vitt 1979a; He et al. 2022)
Leratia exigua (Sull.) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 286. 2004. (Goffinet et al. 2004)

Basionym: Orthotrichum exiguum Sull., Manual (ed. 2): 633. 1856. (Sullivant 1856; Goffinet et al. 2004)
- =Orthotrichum decurrens Thér., Bull. Acad. Int. Géogr. Bot. 19: 19. 1909. (Thériot 1909; Lewinsky 1992)
- =Orthotrichum szuchuanicum P.C. Chen, Contr. Inst. Biol. Natl. Centr. Univ. 1: 7. 1943. (Chen 1943; Lewinsky 1992)
Leratia neocaledonica Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 14. 1909. (Brotherus 1909; Goffinet et al. 2004)

≡Leratiella neocaledonica (Broth. & Paris) Broth. & P. Syd., Nat. Pflanzenfam., ed. 2, 11: 28. 1925. (Brotherus 1925; Goffinet et al. 2004)
Leratia obtusifolia (Hook.) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 286. 2004. (Goffinet et al. 2004)

Basionym: Zygodon obtusifolius Hook., Musci Exot. 2: 159. 1819. (Hooker 1820; Goffinet et al. 2004)

≡Codonoblepharon obtusifolium (Hook.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 119. 1874. (Jaeger 1874; Goffinet et al. 2004) ≡Bryomaltaea obtusifolia (Hook.) Goffinet, Bryol. Twenty-first Cent.: 151. 1998. (Goffinet & Vitt 1998; Goffinet et al. 2004)
- =Zygodon linguiformis Müll. Hal., Bot. Zeitung (Berlin) 16: 163. 1858. (Calabrese 2006) ≡Codonoblepharon linguiforme (Müll. Hal.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 119. 1874. (Jaeger 1874; Allen 2002)
- =Zygodon spathulifolius Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 187. 1872. (Bescherelle 1872; Calabrese 2006)
- =Codonoblepharon neglectum A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 118. 1874. (Jaeger 1874; Calabrese 2006)
- =Zygodon erythrocarpus Müll. Hal., Linnaea 42: 365. 1879. (Müller 1879a; Calabrese 2006)
- =Zygodon araucariae Müll. Hal., Bull. Herb. Boissier 6: 95. 1898. (Müller 1898a; Calabrese 2006)
- =Zygodon neglectus Hampe ex Müll. Hal., Hedwigia 37: 133. 1898. (Müller 1898c; Lewinsky 1989a)
- =Zygodon obtusifolius var. antarcticus Malta, Latv. Univ. Raksti 10: 334. 1924. (Calabrese 2006)
- =Zygodon obtusifolius var. latifolius Malta, Latv. Univ. Raksti 10: 334. 1924. (Calabrese 2006)
Leratia scaberrima (Broth.) Goffinet, S. He & Shevock, Bryoph. Diversity & Evol. 45: 192. 2022. (He et al. 2022)

Basionym: Orthotrichum scaberrimum Broth., Symb. Sin. 4: 70. 1929. (Brotherus 1929; He et al. 2022)

≡Florschuetziella scaberrima (Broth.) Vitt, J. Hattori Bot. Lab. 49: 108. 1981. (Vitt 1981; He et al. 2022)
Leratia steerei (Vitt) Goffinet, S. He & Shevock, Bryoph. Diversity & Evol. 45: 194. 2022. (He et al. 2022)

Basionym: Florschuetziella steerei Vitt, Bryologist 82: 16. 1979. (Vitt 1979a; He et al. 2022)
Lewinskya F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 365. 2016. (Lara et al. 2016)
- =Dorcadionella Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 196. 2016, nom. illeg. (Plášek et al. 2016)
Lewinskya acuminata (H. Philib.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum acuminatum H. Philib., Rev. Bryol. 8: 28. 1881. (Philibert 1881)

≡Orthotrichum affine subsp. acuminatum (H. Philib.) Kindb., Eur. N. Amer. Bryin. 2: 303. 1897[1898]. (Kindberg 1897) ≡Orthotrichum striatum var. acuminatum (H. Philib.) Podp., Consp. Musc. Eur.: 470. 1954. (Podpěra 1954) ≡Orthotrichum octoblepharis subsp. acuminatum (H. Philib.) Podp., Consp. Musc. Eur.: 473. 1954. (Podpěra 1954) ≡Dorcadionella acuminata (H. Philib.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya affinis (Brid.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum affine Brid., Muscol. Recent. 2(2): 22. 1801. (Bridel 1801b)

≡Dorcadion affine (Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Dorcadionella affinis (Brid.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 196. 2016. (Plášek et al. 2016)
- =Orthotrichum octoblepharis Brid., Muscol. Recent. 2(2): 24. 1801. (Bridel 1801b; Heyn & Herrnstadt 2004) ≡Weissia octoblepharis (Brid.) Roth, Catal. Bot. 3: 155. 1806. (Heyn & Herrnstadt 2004) ≡Orthotrichum affine var. octoblepharis (Brid.) Brid., Muscol. Recent. Suppl. 2: 7. 1812. (Bridel 1812)
- =Bryum semivacuum Brid., Muscol. Recent. 2(3): 44. 1803. (Bridel 1803; Vitt 1973a) ≡Splachnum semivacuum (Brid.) P. Beauv., Prodr. Aethéogam.: 89. 1805. (Vitt 1973a)
- =Bryum affine J.F. Gmel. ex Brot., Fl. Lusit. 2: 411. 1804. (Brotero 1804; Wijk et al. 1959)
- =Orthotrichum affine Schwägr., Sp. Musc. Frond., Suppl. 1, 2: 19. 1816, nom. illeg. (Schwägrichen 1816; Hill et al. 2006)
- =Orthotrichum affine var. macrocaule Brid., Bryol. Univ. 2: 812. 1827. (Bridel 1827b; Vigalondo et al. 2020)
- =Orthotrichum alpestre Wilson, Hooker's J. Bot. Kew Gard. Misc. 9: 326. 1857, nom. illeg. (Hill et al. 2006)
- =Orthotrichum kingianum Lesq., Mem. Calif. Acad. Sci. 1: 18. 1868. (Vitt 1973a) ≡Orthotrichum laevigatum var. kingianum (Lesq.) Grout, Moss Fl. N. Amer. 2: 113. 1935. (Grout 1933-1940)
- =Orthotrichum affine var. densum Venturi, Hedwigia 12: 35. 1873. (Vigalondo et al. 2020)
- =Orthotrichum affine var. medium Venturi, Hedwigia 12: 35. 1873. (Vigalondo et al. 2020)
- =Orthotrichum affine f. viride Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 17. 1885. (Grönvall 1885; Vigalondo et al. 2020)
- =Orthotrichum affine f. vulgare Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 17. 1885. (Grönvall 1885; Vigalondo et al. 2020)
- =Orthotrichum affine f. lutescens Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 18. 1885. (Grönvall 1885; Vigalondo et al. 2020)
- =Sphagnum semivacuum P. Beauv. ex Paris, Index Bryol.: 1214. 1898. (Wijk et al. 1967)
- =Orthotrichum bequaertii Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 49. 1927. (Lewinsky 1978)
- =Orthotrichum affine var. bohemicum Plášek & Sawicki, Čas. Slez. Muz. Opava A, 61(1): 1. 2012. (Plášek & Sawicki 2012) ≡Dorcadionella affinis var. bohemica (Plášek & Sawicki) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016) ≡Lewinskya affinis var. bohemica (Plášek & Sawicki) Plášek, Acta Mus. Siles. Sci. Nat. 69: 89. 2020. (Procházková & Plášek 2020; Hodgetts et al. 2020)
Lewinskya anaglyptodon (Cardot & Broth.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum anaglyptodon Cardot & Broth., Kongl. Svenska Vetensk. Acad. Handl., n.s. 63(10): 31. 1923. (Cardot & Brotherus 1923)

≡Dorcadionella anaglyptodon (Cardot & Broth.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya anaglyptodon (Cardot & Broth.) F. Lara, Garilleti & Goffinet var. anaglyptodon
Lewinskya anaglyptodon var. ochyrarum Plášek, Acta Mus. Siles. Sci. Nat. 68(1–2): 175. 2019. (Plášek 2019)
Lewinskya araucarieti (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum araucarieti Müll. Hal., Ergebn. Bot. Exp. Südbras., Musci: 287. 1924. (Brotherus 1924a)

≡Dorcadionella araucarieti (Müll. Hal.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya arborescens (Thér. & Naveau) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum arborescens Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 48. 1927. (Naveau 1927)

≡Dorcadionella arborescens (Thér. & Naveau) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya arida Vigalondo, F. Lara & Garilleti, Bryologist 123(3): 477. 2020. (Vigalondo et al. 2020)
Lewinskya armata (Lewinsky & van Rooy) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum armatum Lewinsky & van Rooy, J. Bryol. 16: 69. 1990. (Lewinsky & van Rooy 1990)

≡Dorcadionella armata (Lewinsky & van Rooy) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya bolanderi (Sull.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum bolanderi Sull., Icon. Musc. Suppl.: 64. 1874. (Sullivant 1874)

≡Dorcadionella bolanderi (Sull.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya brassii (E.B. Bartram) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum brassii E.B. Bartram, Lloydia 5: 268. 1942. (Bartram 1942a)

≡Dorcadionella brassii (E.B. Bartram) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya breviseta (F. Lara, Garilleti & Mazimpaka) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum speciosum var. brevisetum F. Lara, Garilleti & Mazimpaka, J. Bryol. 25: 276. 2003. (Draper et al. 2003)
Lewinskya brotheri (Dusén ex Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum brotheri Dusén ex Lewinsky, Mem. New York Bot. Gard. 45: 348. 1987. (Lewinsky 1987)

≡Dorcadionella brotheri (Dusén ex Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya cyathiformis (R. Br. bis) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 374. 2016. (Lara et al. 2016)

Basionym: Orthotrichum cyathiforme R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 436. 1895. (Brown 1895)

≡Dorcadionella cyathiformis (R. Br. bis) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
- =Orthotrichum brevirostrum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 436. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum arctum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 440. 1895. (Brown 1895; Wijk et al. 1964)
- =Orthotrichum pseudopumilum Venturi, Rev. Bryol. 23: 67. 1896. (Cardot 1896; Lewinsky 1984a)
- =Orthotrichum ligulatum Müll. Hal., Hedwigia 37: 140. 1898. (Müller 1898c; Lewinsky 1984a)
Lewinskya dasymitria (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum dasymitrium Lewinsky, Bryobrothera 1: 169. 1992. (Koponen & Luo 1992)

≡Dorcadionella dasymitria (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya densa (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum densum Lewinsky, Mem. New York Bot. Gard. 45: 336. 1987. (Lewinsky 1987)

≡Dorcadionella densa (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya elegans (Schwägr. ex Hook. & Grev.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum elegans Schwägr. ex Hook. & Grev., Edinburgh J. Sci. 1: 122. 1824. (Hooker & Greville 1824)

≡Orthotrichum speciosum subsp. elegans (Schwägr. ex Hook. & Grev.) Lindb., Meddeland. Soc. Fauna Fl. Fenn. 1: 105. 1876[1877]. ≡Dorcadion elegans (Schwägr. ex Hook. & Grev.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum speciosum var. elegans (Schwägr. ex Hook. & Grev.) Warnst., Hedwigia 53: 314. 1913. (Warnstorf 1913) ≡Dorcadionella elegans (Schwägr. ex Hook. & Grev.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
- =Orthotrichum speciosum subsp. fuscum Lindb., Not. Sällsk. Fauna Fl. Fenn. Förh. 13: 302. 1873. (Podpěra 1954)
- =Orthotrichum speciosum var. roellii Venturi, Bot. Centralbl. 44: 419. 1890. (Vitt 2014)
Lewinskya elegantula (Schimp. ex Mitt.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum elegantulum Schimp. ex Mitt., J. Linn. Soc., Bot. 12: 187. 1869. (Mitten 1869)

≡Dorcadionella elegantula (Schimp. ex Mitt.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
- =Orthotrichum anderssonii Müll. Hal. ex Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 29(4): 5. 1872. (Ångström 1872; Lewinsky 1987) ≡Ulota anderssonii (Müll. Hal. ex Ångstr.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 427. 1880. (Jaeger & Sauerbeck 1879; Lewinsky 1987)
- =Orthotrichum inclinatum Müll. Hal., Flora 68: 419. 1885. (Müller 1885; Lewinsky 1987) ≡Ulota inclinata (Müll. Hal.) Kindb., Enum. Bryin. Exot.: 79. 1888. (Kindberg 1888; Lewinsky 1987)
- =Ulota gymnomitria Müll. Hal., Hedwigia 36: 104. 1897. (Müller 1897e; Lewinsky 1987) ≡Orthotrichum gymnomitrium (Müll. Hal.) Broth., Nat. Pflanzenfam. I(3): 445. 1902. (Lewinsky 1987)
- =Orthotrichum argentinicum Herzog, Darwiniana 11: 213, 219. 1957. (Herzog 1957; Lewinsky 1987)
Lewinskya elongata (Taylor) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum elongatum Taylor, London J. Bot. 5: 45. 1846. (Taylor 1846)

≡Dorcadionella elongata (Taylor) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
- =Orthotrichum tuberculatum Mitt., J. Linn. Soc., Bot. 12: 187. 1869. (Mitten 1869; Lewinsky 1987)
- =Orthotrichum wallisii Müll. Hal., Linnaea 38: 604. 1874. (Müller 1874c; Lewinsky 1987)
Lewinskya erosa (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum erosum Lewinsky, J. Hattori Bot. Lab. 72: 32. 1992. (Lewinsky 1992)

≡Dorcadionella erosa (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
Lewinskya fastigiata (Bruch ex Brid.) Vigalondo, F. Lara & Garilleti, Molec. Phylogen. Evol. 14(2, 106598): 13. 2019. (Vigalondo et al. 2019a)

Basionym: Orthotrichum fastigiatum Bruch ex Brid., Bryol. Univ. 1: 785. 1827. (Bridel 1827a; Vigalondo et al. 2019a)

≡Orthotrichum affine var. fastigiatum (Bruch ex Brid.) Huebener, Muscol. Germ.: 365. 1833. (Huebener 1833) ≡Orthotrichum affine subsp. fastigiatum (Bruch ex Brid.) Hartm., Handb. Skand. Fl. (ed. 5): 367. 1849. (Hartman 1849) ≡Dorcadion affine var. fastigiatum (Bruch ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum octoblepharis var. fastigiatum (Bruch ex Brid.) C.E.O. Jensen, Skand. Bladmossfl.: 356. 1939. ≡Orthotrichum octoblepharis subsp. fastigiatum (Bruch ex Brid.) Podp., Consp. Musc. Eur.: 473. 1954. (Podpěra 1954)
- =Orthotrichum appendiculatum Schimp., Musci Eur. Nov.: 1. 1864. (Schimper 1864-1866; Vigalondo et al. 2020) ≡Orthotrichum fastigiatum var. appendiculatum (Schimp.) Limpr., Krypt.-Fl. Schlesien 1: 151. 1876. (Limpricht 1876) ≡Orthotrichum affine var. appendiculatum (Schimp.) Venturi, Rev. Bryol. 6: 56. 1879. ≡Orthotrichum octoblepharis f. appendiculatum (Schimp.) Demaret, Bull. Jard. Bot. État Bruxelles 17: 354. 1945. ≡Orthotrichum octoblepharis subsp. appendiculatum (Schimp.) Podp., Consp. Musc. Eur.: 473. 1954.
- =Orthotrichum affine var. pulvinatum Venturi, Hedwigia 12: 35. 1873. (Vigalondo et al. 2020)
- =Orthotrichum neglectum Schimp., Syn. Musc. Eur. (ed. 2): 330. 1876, nom. illeg. (Schimper 1876; Vigalondo et al. 2020) ≡Orthotrichum fastigiatum var. neglectum Limpr., Laubm. Deutschl. 2: 83. 1890. (Limpricht 1885–1903) ≡Orthotrichum octoblepharis subsp. neglectum (Limpr.) Podp., Consp. Musc. Eur.: 473. 1954. (Podpěra 1954)
- =Orthotrichum affine var. neglectum Venturi, Atti Soc. Crittog. Ital. 3(3): 179. 1884. (Vigalondo et al. 2020)
- =Orthotrichum affine f. crassius Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 18. 1885. (Grönvall 1885; Vigalondo et al. 2020)
- =Orthotrichum affine var. rivale Wilson ex Braithw., Brit. Moss Fl. 2: 72. 1889. (Braithwaite 1887-1905; Vigalondo et al. 2020) ≡Orthotrichum octoblepharis var. rivale (Wilson ex Braithw.) Podp., Consp. Musc. Eur.: 472. 1945. (Podpěra 1954)
- =Orthotrichum fastigiatum var. robustum Limpr., Laubm. Deutschl. 2: 83. 1890. (Limpricht 1885–1903; Vigalondo et al. 2020) ≡Orthotrichum affine var. robustum (Limpr.) Warnst., Krypt.-Fl. Brandenburg, Laubm. 2: 378. 1904. (Warnstorf 1904–1906) ≡Orthotrichum octoblepharis var. robustum (Limpr.) Podp., Consp. Musc. Eur.: 473. 1954. (Podpěra 1954)
- =Orthotrichum amannii Culm., Rev. Bryol. 19: 57. 1892. (Culmann 1892; Vigalondo et al. 2020) ≡Orthotrichum affine var. amannii (Culm.) J.J. Amann, Fl. Mouss. Suisse 2: 161. 1918. (Amann & Meylan 1918) ≡Orthotrichum fastigiatum var. amannii (Culm.) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 84. 1932. (Piccioli 1932)
- =Orthotrichum affine var. roellii Bott., Bull. Soc. Bot. Ital. 1909: 109. 1909. (Vigalondo et al. 2020)
- =Orthotrichum affine var. microstomum J.J. Amann, Fl. Mouss. Suisse 2: 161. 1918. (Amann & Meylan 1918) ≡Orthotrichum octoblepharis var. microstomum (J.J. Amann) Podp., Consp. Musc. Eur.: 473. 1954. (Podpěra 1954; Vigalondo et al. 2020)
- =Orthotrichum fastigiatum var. microstomum J.J. Amann, Fl. Mouss. Suisse 2: 161. 1918. (Amann & Meylan 1918; Vigalondo et al. 2020)
Lewinskya fenestrata (Cardot & Thér.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum fenestratum Cardot & Thér., Proc. Wash. Acad. Sci. 4(5): 310. 1902. (Cardot & Thériot 1902)

≡Dorcadionella fenestrata (Cardot & Thér.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya firma (Venturi) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum firmum Venturi, Nuovo Giorn. Bot. Ital. 4: 15. 1872. (Venturi 1872)

≡Dorcadionella firma (Venturi) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 197. 2016. (Plášek et al. 2016)
- =Orthotrichum plurisetum Dixon ex Piovano & Tosco, Allionia 17: 87. 1971. (Lewinsky 1993a)
Lewinskya galiciae (F. Lara, Garilleti & Mazimpaka) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum galiciae F. Lara, Garilleti & Mazimpaka, Nova Hedwigia 83: 200. 2006. (Lara et al. 2006)

≡Dorcadionella galiciae (F. Lara, Garilleti & Mazimpaka) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya graphiomitria (Müll. Hal. ex Beckett) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum graphiomitrium Müll. Hal. ex Beckett, Trans. & Proc. New Zealand Inst. 25: 291. 1893. (Beckett 1893)

≡Dorcadionella graphiomitria (Müll. Hal. ex Beckett) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum acuminatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 434. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a) ≡Orthotrichum brownii Paris, Index Bryol.: 878. 1897. (Lewinsky 1984a)
- =Orthotrichum obesum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 435. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum leiolecythis Müll. Hal., Hedwigia 37: 140. 1898, nom. illeg. (Müller 1898c; Lewinsky 1984a) ≡Orthotrichum subleiolecythis Paris, Index Bryol. Suppl.: 260. 1900. (Lewinsky 1984a)
Lewinskya hawaiica (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum hawaiicum Müll. Hal., Flora 82: 451. 1896. (Müller 1896a)

≡Dorcadionella hawaiica (Müll. Hal.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya holzingeri (Renauld & Cardot) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum holzingeri Renauld & Cardot, Contr. U.S. Natl. Herb. 3(4): 270. 1895. (Holzinger 1895)

≡Dorcadionella holzingeri (Renauld & Cardot) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya hookeri (Wilson ex Mitt.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016)

Basionym: Orthotrichum hookeri Wilson ex Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 48. 1859. (Mitten 1859b)

≡Dorcadionella hookeri (Wilson ex Mitt.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum sikkimense Herzog, Ann. Bryol. 12: 90. 1939. (Herzog 1939; Lewinsky 1992)
Lewinskya hookeri var. granulata (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 375. 2016. (Lara et al. 2016; Wang & Jia 2020)

Basionym: Orthotrichum hookeri var. granulatum Lewinsky, J. Hattori Bot. Lab. 72: 20. 1992. (Lewinsky 1992)
- =Orthotrichum macrosporum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 5: 185. 1898. (Müller 1898d; Wang & Jia 2020)
- =Orthotrichum microsporum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 13: 271. 1906. (Wang & Jia 2020)
Lewinskya hookeri (Wilson ex Mitt.) F. Lara, Garilleti & Goffinet var. hookeri
Lewinskya hortensis (Bosw.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum hortense Bosw., J. Bot. 30: 97. 1892. (Boswell 1892)

≡Dorcadionella hortensis (Bosw.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum breve R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 426. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum brevisetum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 434. 1895. (Brown 1895; Lewinsky 1984a)
Lewinskya hortoniae (Vitt) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum hortoniae Vitt, Bryologist 82: 2. 1979. (Vitt 1979a; Lara et al. 2016)
Lewinskya iberica (F. Lara & Mazimpaka) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum ibericum F. Lara & Mazimpaka, Nova Hedwigia 56: 263. 1993. (Lara & Mazimpaka 1993)

≡Dorcadionella iberica (F. Lara & Mazimpaka) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya incana (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum incanum Müll. Hal., Flora 68: 419. 1885. (Müller 1885; Lara et al. 2016)

≡Ulota incana (Müll. Hal.) Kindb., Enum. Bryin. Exot.: 79. 1888. (Kindberg 1888; Lara et al. 2016) ≡Dorcadionella incana (Müll. Hal.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016; Lara et al. 2016)
Lewinskya incrassata (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum incrassatum Lewinsky, Bryobrothera 2: 67. 1993. (Lewinsky 1993b)
Lewinskya incurvomarginata (Lewinsky & van Rooy) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum incurvomarginatum Lewinsky & van Rooy, J. Bryol. 16: 67. 1990. (Lewinsky & van Rooy 1990)

≡Dorcadionella incurvomarginata (Lewinsky & van Rooy) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya iwatsukii (Ignatov) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum iwatsukii Ignatov, Arctoa 10: 172. 2001. (Ignatov et al. 2001)

≡Orthotrichum macounii subsp. japonicum Z. Iwats., J. Hattori Bot. Lab. 21: 420. 1959. (Iwatsuki 1959a) ≡Orthotrichum laevigatum var. japonicum (Z. Iwats.) Lewinsky, J. Hattori Bot. Lab. 72: 42. 1992. (Lewinsky 1992) ≡Dorcadionella iwatsukii (Ignatov) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya johnstonii (E.B. Bartram) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum johnstonii E.B. Bartram, Rev. Bryol. Lichénol. 13: 132. 1942. (Bartram 1942b)

≡Dorcadionella johnstonii (E.B. Bartram) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum aristoblepharum Herzog, Rev. Bryol. Lichénol. 23: 80. 1954. (Herzog 1954; Lewinsky 1987)
Lewinskya keeverae (H.A. Crum & L.E. Anderson) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum keeverae H.A. Crum & L.E. Anderson, J. Elisha Mitchell Sci. Soc. 72(2): 281. 1956. (Crum & Anderson 1956)

≡Dorcadionella keeverae (H.A. Crum & L.E. Anderson) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya killiasii (Müll. Hal.) Kiebacher, Köckinger & Jan Kučera, Bot. J. Linn. Soc. 198(4): 466. 2022[2021]. (Kiebacher et al. 2022)

Basionym: Orthotrichum killiasii Müll. Hal., Jahresber. Naturf. Ges. Graubündens 3: 166. 1858. (Müller 1858b; Kiebacher et al. 2022)

≡Dorcadion killiasii (Müll. Hal.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879; Kiebacher et al. 2022) ≡Orthotrichum speciosum subsp. killiasii (Müll. Hal.) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 122. 1883. (Kindberg 1883) ≡Orthotrichum speciosum var. killiasii (Müll. Hal.) Venturi, Hedwigia 32: 277. 1893.
Lewinskya killiasii (Müll. Hal.) Kiebacher, Köckinger & Jan Kučera subsp. killiasii
Lewinskya killiasii subsp. simonyi (Schlüsslmayr) Kiebacher, Köckinger & Jan Kučera, Bot. J. Linn. Soc. 198(4): 469. 2022[2021]. (Kiebacher et al. 2022)

Basionym: Orthotrichum simonyi Schlüsslmayr, Stapfia 108: 415. 2019. (Schlüsslmayr 2019; Kiebacher et al. 2022)
Lewinskya laevigata (J.E. Zetterst.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum laevigatum J.E. Zetterst., Öfvers. Kongl. Vetensk.-Akad. Förh. 19(5): 363. 1862. (Zetterstedt 1862)

≡Dorcadion laevigatum (J.E. Zetterst.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum speciosum subsp. laevigatum (J.E. Zetterst.) J.J. Amann, Fl. Mouss. Suisse 2: 163. 1918. (Amann & Meylan 1918) ≡Dorcadionella laevigata (J.E. Zetterst.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum speciosum var. brevicaule Lesq., Mem. Calif. Acad. Sci. 1: 17. 1868. (Vitt 2014)
- =Orthotrichum speciosum var. polyanthum Lesq., Mem. Calif. Acad. Sci. 1: 17. 1868. (Vitt 2014)
- =Orthotrichum hainesiae Austin, Bull. Torrey Bot. Club 6: 342. 1879. (Lewinsky 1993a) ≡Orthotrichum speciosum var. hainesiae (Austin) Paris, Index Bryol.: 896. 1897.
- =Orthotrichum macounii Austin, Bull. Torrey Bot. Club 6: 343. 1879. (Lewinsky 1993a) ≡Orthotrichum laevigatum f. macounii (Austin) E. Lawton & Vitt, Moss Fl. Pacif. N.W.: 222. 1971. (Lawton 1971)
- =Orthotrichum raui Austin, Bull. Torrey Bot. Club 6: 343. 1879. (Lewinsky 1993a) ≡Orthotrichum speciosum var. raui (Austin) Lesq. & James, Man. Mosses N. America: 169. 1884. (Lesquereux & James 1884)
- =Orthotrichum speciosum var. polycarpum Lesq. & James, Man. Mosses N. America: 169. 1884. (Lesquereux & James 1884; Vitt 2014)
- =Orthotrichum stenocarpum Venturi, Bot. Centralbl. 44: 389. 1890, nom. illeg. (Vitt 1973a) ≡Orthotrichum roellii subsp. stenocarpum Kindb., Eur. N. Amer. Bryin. 2: 301. 1897[1898]. (Kindberg 1897)
- =Orthotrichum roellii Venturi, Bot. Centralbl. 44: 390. 1890. (Lewinsky 1993a)
- =Orthotrichum schlotthaueri Venturi, Bot. Centralbl. 44: 390. 1890. (Lewinsky 1993a) ≡Orthotrichum roellii subsp. schlotthaueri (Venturi) Kindb., Eur. N. Amer. Bryin. 2: 301. 1897[1898]. (Kindberg 1897)
- =Orthotrichum lonchothecium Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 90. 1892. (Macoun & Kindberg 1892; Lewinsky 1993a) ≡Orthotrichum macounii var. lonchothecium (Müll. Hal. & Kindb.) Grout, Moss Fl. N. Amer. 2: 112. 1935. (Grout 1933-1940)
- =Orthotrichum arcangelianum Massari, Nuovo Giorn. Bot. Ital., n.s. 4: 373. 1897. (Müller 1897f; Lewinsky 1993c)
- =Orthotrichum brigantiacum Culm., Rev. Bryol. 53: 19. 1926. (Lewinsky 1993c)
- =Orthotrichum macounii f. vermiculare Flowers, Bryologist 76: 291. 1973. (Flowers 1973b; Flowers 1973a)
Lewinskya lamyana F. Lara, Garilleti, Draper & Mazimpaka, Cryptog., Bryol. 39(2): 260. 2018. (Lara et al. 2017)
Lewinskya latimarginata (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum latimarginatum Lewinsky, Mem. New York Bot. Gard. 45: 331. 1987. (Lewinsky 1987)

≡Dorcadionella latimarginata (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya laxifolia (Wilson ex Mitt.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum laxifolium Wilson ex Mitt., Hooker's J. Bot. Kew Gard. Misc. 3: 57. 1851. (Mitten 1851b)

≡Dorcadionella laxifolia (Wilson ex Mitt.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
- =Orthotrichum epilosum R.S. Williams, Bull. New York Bot. Gard. 3(9): 128. 1903. (Lewinsky 1987)
Lewinskya leiolecythis (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum leiolecythis Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 3: 107. 1896. (Müller 1896c)

≡Dorcadionella leiolecythis (Müll. Hal.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 198. 2016. (Plášek et al. 2016)
Lewinskya leptocarpos (Bruch & Schimp. ex Müll. Hal.) Vigalondo, F. Lara & Garilleti, Molec. Phylogen. Evol. 14(2, 106598): 13. 2019. (Vigalondo et al. 2019a)

Basionym: Orthotrichum leptocarpon Bruch & Schimp. ex Müll. Hal., Syn. Musc. Frond. 1: 706. 1849. (Müller 1849; Vigalondo et al. 2019a)
Lewinskya ludificans (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum ludificans Lewinsky, Mem. New York Bot. Gard. 45: 347. 1987. (Lewinsky 1987)

≡Dorcadionella ludificans (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya mandonii (Schimp. ex Hampe) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum mandonii Schimp. ex Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 332. 1865. (Hampe 1865)

≡Ulota mandonii (Schimp. ex Hampe) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 163. 1874. (Jaeger 1874) ≡Dorcadionella mandonii (Schimp. ex Hampe) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum sordidulum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 122. 1897. (Müller 1897f; Lewinsky 1987)
- =Orthotrichum tacacomense R.S. Williams, Bull. New York Bot. Gard. 3(9): 129. 1903. (Williams 1903; Lewinsky 1987)
Lewinskya pacifica Vigalondo, F. Lara & Garilleti, Bryologist 123(3): 478. 2020. (Vigalondo et al. 2020)
- =Orthotrichum affine f. obtusum Grout, Moss Fl. N. Amer. 2: 115. 1935. (Grout 1933-1940; Vigalondo et al. 2020)
Lewinskya pariata (Mitt.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 376. 2016. (Lara et al. 2016)

Basionym: Orthotrichum pariatum Mitt., J. Linn. Soc., Bot. 12: 186. 1869. (Mitten 1869)

≡Dorcadionella pariata (Mitt.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum exsertisetum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 122. 1897. (Müller 1897f; Lewinsky 1987)
Lewinskya praemorsa (Venturi) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum praemorsum Venturi, Bot. Centralbl. 44(13): 418. 1890. (Röll 1890b)

≡Orthotrichum affine subsp. praemorsum (Venturi) Kindb., Eur. N. Amer. Bryin. 2: 303. 1897[1898]. (Kindberg 1897) ≡Orthotrichum microblepharum var. praemorsum (Venturi) Grout, N. Amer. Fl. 15A: 10. 1946. (Grout 1946) ≡Orthotrichum arcticum var. praemorsum (Venturi) Wijk & Margad., Taxon 10: 25. 1961. (Wijk & Margadant 1961) ≡Dorcadionella praemorsa (Venturi) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya pseudoaffinis Vigalondo, F. Lara & Garilleti, Bryologist 123(3): 479. 2020. (Vigalondo et al. 2020)
Lewinskya psychrophila (Mont.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum psychrophilum Mont., Ann. Sci. Nat., Bot., sér. 2, 9: 52. 1838. (Montagne 1838)

≡Dorcadionella psychrophila (Mont.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum parvum Herzog, Biblioth. Bot. 87: 64. 1916. (Herzog 1916a; Lewinsky 1987)
Lewinskya pulchra (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum pulchrum Lewinsky, J. Hattori Bot. Lab. 72: 20. 1992. (Lewinsky 1992)

≡Dorcadionella pulchra (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya pycnophylla (Schimp.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum pycnophyllum Schimp., Syn. Musc. Frond. 1(5): 709. 1849. (Müller 1849)

≡Dorcadionella pycnophylla (Schimp.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum recurvans Schimp., Syn. Musc. Frond. 1: 709. 1849. (Müller 1849; Allen 2002)
- =Orthotrichum epibryum De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 18: 448. 1859. (De Notaris 1859; Lewinsky 1987)
- =Orthotrichum wagneri Lorentz, Moosstudien: 162. 1864. (Lorentz 1864; Lewinsky 1987)
- =Orthotrichum apiculatum Mitt., J. Linn. Soc., Bot. 12: 188. 1869, nom. illeg. (Mitten 1869; Lewinsky 1987)
- =Orthotrichum rubescens Mitt., J. Linn. Soc., Bot. 12: 188. 1869. (Mitten 1869; Lewinsky 1987)
- =Orthotrichum lorentzii Müll. Hal., Linnaea 42: 358. 1879. (Müller 1879a; Lewinsky 1987)
- =Orthotrichum lozanoi Cardot, Rev. Bryol. 36: 107. 1909. (Cardot 1909b; Allen 2002)
- =Orthotrichum lozanoi var. lutescens Cardot, Rev. Bryol. 36: 107. 1909. (Cardot 1909b; Allen 2002) ≡Orthotrichum pycnophyllum var. lutescens (Cardot) Grout, N. Amer. Fl. 15A: 10. 1946. (Grout 1946)
Lewinskya pycnophylla (Schimp.) F. Lara, Garilleti & Goffinet var. pycnophylla
Lewinskya pycnophylla var. verrucosa (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum verrucosum Müll. Hal., Linnaea 42: 359. 1879. (Müller 1879a; Lewinsky 1987)

≡Orthotrichum pycnophyllum var. verrucosum (Müll. Hal.) Lewinsky, Mem. New York Bot. Gard. 45: 352. 1987. (Lewinsky 1987)
Lewinskya pylaisii (Brid.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum pylaisii Brid., Bryol. Univ. 1(1): 722. 1826. (Bridel 1826)

≡Dorcadion pylaisii (Brid.) C.E.O. Jensen, Meddel. Grønland 15: 421. 1898. ≡Dorcadionella pylaisii (Brid.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum breutelii Hampe, Flora 32: 273. 1849. (Wijk et al. 1964)
- =Orthotrichum barthii Sendtn., Flora 32: 274. 1849. (Lewinsky 1993a)
- =Orthotrichum barthii var. majus Sendtn., Flora 32: 274. 1849. (Sendtner 1849)
- =Orthotrichum barthii var. minus Sendtn., Flora 32: 274. 1849. (Sendtner 1849)
- =Orthotrichum blyttii Schimp., Musci Eur. Nov. (fasc. 1–2): Mon. 3. 1864. (Schimper 1864-1866; Lewinsky 1993a) ≡Dorcadion blyttii (Schimp.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879; Lewinsky 1993a) ≡Orthotrichum arcticum subsp. blyttii (Schimp.) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 124. 1883. (Kindberg 1883) ≡Orthotrichum arcticum var. blyttii (Schimp.) Cardot & Thér., Univ. Calif. Publ. Bot. 2(13): 299. 1906. (Cardot 1906)
- =Orthotrichum sommerfeltii Schimp., Musci Eur. Nov. (fasc. 1–2): Mon. 6. 1864. (Schimper 1864-1866; Lewinsky 1993a) ≡Dorcadion sommerfeltii (Schimp.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879; Lewinsky 1993a) ≡Orthotrichum pylaisii subsp. sommerfeltii (Schimp.) Kindb., Eur. N. Amer. Bryin. 2: 302. 1897[1898]. (Kindberg 1897) ≡Orthotrichum blyttii var. sommerfeltii (Schimp.) I. Hagen, Tromsø Mus. Aarsh. 21–22(1): 83. 1899. (Hagen 1899) ≡Orthotrichum arcticum var. sommerfeltii (Schimp.) G. Roth, Eur. Laubm. 1: 502. 1904. (Roth 1904–1905)
- =Orthotrichum arcticum Schimp., Musci Eur. Nov. 1–2: 5. 1864. (Schimper 1864-1866; Lewinsky 1993a) ≡Dorcadion arcticum (Schimp.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879; Lewinsky 1993a) ≡Orthotrichum pylaisii subsp. arcticum (Schimp.) Kindb., Eur. N. Amer. Bryin. 2: 302. 1897[1898]. (Kindberg 1897) ≡Orthotrichum blyttii var. arcticum (Schimp.) I. Hagen, Tromsø Mus. Aarsh. 21–22(1): 83. 1899. (Hagen 1899) ≡Orthotrichum blyttii subsp. arcticum (Schimp.) Macoun, Cat. Canad. Pl., Lich. Hepat.: 229. 1902. (Macoun 1902)
- =Orthotrichum microblepharum Schimp., Musci Eur. Nov.: 1. 1864. (Schimper 1864-1866; Lewinsky 1993a) ≡Dorcadion microblepharum (Schimp.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879; Lewinsky 1993a) ≡Orthotrichum pylaisii subsp. microblepharum (Schimp.) Kindb., Eur. N. Amer. Bryin. 2: 302. 1897[1898]. (Kindberg 1897) ≡Orthotrichum blyttii subsp. microblepharum (Schimp.) Macoun, Cat. Canad. Pl., Lich. Hepat.: 229. 1902. (Macoun 1902) ≡Orthotrichum arcticum var. microblepharum (Schimp.) Mönk., Laubm. Eur.: 615. 1927. (Mönkemeyer 1927) ≡Orthotrichum blyttii var. microblepharum (Schimp.) Mönk. ex Weim., Förteckn. Skand. Växt., Moss. (ed. 2): 40, 73. 1937. ≡Orthotrichum pylaisii var. microblepharum (Schimp.) Hinn., Ann. Univ. Turku., Ser. A2, Biol.-Geogr.-Geol. 58: 12. 1976. (Hinneri 1976)
- =Orthotrichum brevinerve Lindb., Not. Sällsk. Fauna Fl. Fenn. Förh. 13: 302. 1873. (Lewinsky 1993a) ≡Dorcadion brevinerve (Lindb.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879; Lewinsky 1993a) ≡Orthotrichum pylaisii subsp. brevinerve (Lindb.) Kindb., Eur. N. Amer. Bryin. 2: 302. 1897[1898]. (Kindberg 1897) ≡Orthotrichum sardagnanum var. brevinerve (Lindb.) W. Krieg., Lotos 56: 320. 1908. ≡Orthotrichum cupulatum var. brevinerve (Lindb.) J.J. Amann, Fl. Mouss. Suisse 2: 153. 1918. (Amann & Meylan 1918)
- =Orthotrichum groenlandicum Berggr., Kongl. Svenska Vetensk. Acad. Handl., n.s. 13(8): 23. 1875. (Berggren 1875; Lewinsky 1993a) ≡Orthotrichum pylaisii subsp. groenlandicum (Berggr.) Kindb., Eur. N. Amer. Bryin. 2: 302. 1897[1898]. (Kindberg 1897) ≡Orthotrichum arcticum var. groenlandicum (Berggr.) Mönk., Laubm. Eur.: 614. 1927. (Mönkemeyer 1927) ≡Orthotrichum blyttii var. groenlandicum (Berggr.) Mönk. ex Weim., Förteckn. Skand. Växt., Moss. (ed. 2): 40, 73. 1937. (Weimarck 1937) ≡Orthotrichum pylaisii f. groenlandicum (Berggr.) Hinn., Ann. Univ. Turku., Ser. A2, Biol.-Geogr.-Geol. 58: 11. 1976. (Hinneri 1976)
- =Orthotrichum rhabdophorum Venturi, Bot. Centralbl. 44: 418. 1890. (Lewinsky 1993a)
- =Orthotrichum mitigatum I. Hagen, Tromsø Mus. Aarsh. 21–22(1): 86. 1899. (Hagen 1899; Lewinsky 1993a) ≡Orthotrichum blyttii subsp. mitigatum (I. Hagen) Podp., Consp. Musc. Eur.: 469. 1954. (Podpěra 1954) ≡Orthotrichum arcticum subsp. mitigatum (I. Hagen) Wijk & Margad., Taxon 10: 25. 1961. (Wijk & Margadant 1961)
- =Orthotrichum idahense Cardot & Thér., Bot. Gaz. 30: 19. 1900. (Cardot & Thériot 1900; Lewinsky 1993a)
Lewinskya rupestris (Schleich. ex Schwägr.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum rupestre Schleich. ex Schwägr., Sp. Musc. Frond., Suppl. 1, 2: 27. 1816. (Schwägrichen 1816)

≡Dorcadion rupestre (Schleich. ex Schwägr.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879) ≡Dorcadionella rupestris (Schleich. ex Schwägr.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum sturmii Hoppe & Hornsch., Flora 2(1): 89. 1819. (Miller et al. 1978) ≡Orthotrichum cupulatum var. sturmii (Hoppe & Hornsch.) Hampe, Flora 20: 280. 1837. ≡Dorcadion rupestre var. sturmii (Hoppe & Hornsch.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879) ≡Orthotrichum rupestre var. sturmii (Hoppe & Hornsch.) Jur., Laubm.-Fl. Oesterr.-Ung.: 201. 1882. (Juratzka 1882) ≡Orthotrichum rupestre subsp. sturmii (Hoppe & Hornsch.) Boulay, Musc. France, Mousses: 327. 1884. (Boulay 1884)
- =Orthotrichum rupincola Funck, Deutschl. Moose: 35. 1820. (Müller 1853; Wijk et al. 1964) ≡Orthotrichum rupestre var. rupincola (Funck) Huebener, Muscol. Germ.: 369. 1833. (Huebener 1833) ≡Orthotrichum rupestre f. rupincola (Funck) Mönk., Laubm. Eur.: 612. 1927. (Mönkemeyer 1927)
- =Orthotrichum funckii Brid., Bryol. Univ. 1: 284. 1826. (Bridel 1826; Wijk et al. 1964)
- =Orthotrichum sehlmeyeri Bruch ex Brid., Bryol. Univ. 1: 784. 1827. (Bridel 1827a; Wijk et al. 1964) ≡Orthotrichum rupestre var. sehlmeyeri (Bruch ex Brid.) Huebener, Muscol. Germ.: 369. 1833. (Huebener 1833) ≡Orthotrichum rupestre f. sehlmeyeri (Bruch ex Brid.) Mönk., Laubm. Eur.: 612. 1927. (Mönkemeyer 1927)
- =Orthotrichum texanum Sull., Manual (ed. 2): 633. 1856. (Sullivant 1856; Sharp et al. 1994)
- =Orthotrichum strictissimum Molendo, Moosstudien: 96. 1864. (Lorentz 1864; Miller et al. 1978)
- =Orthotrichum aetnense De Not., Comment. Soc. Crittog. Ital. 2(2): 105, 106 [‘205’, ‘206’]. 1865. (De Notaris 1865; Wijk et al. 1964) ≡Orthotrichum rupestre var. aetnense (De Not.) Venturi, Muscol. Gall.: 157. 1887. (Husnot 1884–1894)
- =Orthotrichum flaccum De Not., Comment. Soc. Crittog. Ital. 2(2): 105, 106 [‘205’, ‘206’]. 1865. (De Notaris 1865; Wijk et al. 1964) ≡Orthotrichum rupestre var. flaccum (De Not.) Venturi, Acta Soc. Sci. Fenn. 19(12): 80. 1892. (Brotherus 1892)
- =Orthotrichum texanum var. globosum Lesq., Mem. Calif. Acad. Sci. 1: 17. 1868. ≡Orthotrichum rupestre var. globosum (Lesq.) Grout, Moss Fl. N. Amer. 2: 110. 1935. (Grout 1933-1940; Vitt 2014)
- =Orthotrichum douglasii Duby, Mém. Soc. Phys. Genève 19: 293. 1868. (Duby 1868; Sharp et al. 1994)
- =Orthotrichum sturmii var. saxatile Venturi, Hedwigia 12: 2. 1873. (Podpěra 1954)
- =Orthotrichum sturmii var. septentrionale Venturi, Hedwigia 12: 3. 1873. (Podpěra 1954)
- =Orthotrichum sturmii var. variegatum Venturi, Hedwigia 12: 3. 1873. (Podpěra 1954)
- =Orthotrichum sturmii var. virens Venturi, Hedwigia 12: 3. 1873. (Lewinsky 1977) ≡Orthotrichum rupestre var. virens (Venturi) Broth., Acta Soc. Sci. Fenn. 19(12): 81. 1892. (Brotherus 1892)
- =Orthotrichum rupestre var. alpinum Venturi, Hedwigia 12: 4. 1873. (Garilleti et al. 2007)
- =Orthotrichum rupestre var. commune Venturi, Hedwigia 12: 4. 1873. (Venturi 1873)
- =Orthotrichum rupestre var. elongatum Venturi, Hedwigia 12: 4. 1873. (Podpěra 1954)
- =Orthotrichum rupestre var. boreale Venturi, Hedwigia 12: 5. 1873. (Garilleti et al. 2007)
- =Orthotrichum rupestre var. montanum Venturi, Hedwigia 12: 5. 1873. (Garilleti et al. 2007)
- =Orthotrichum californicum Venturi, Hedwigia 12: 6. 1873. (Sharp et al. 1994)
- =Orthotrichum caroli-muelleri Molendo, Ber. Naturhist. Vereins Passau 10: 144. 1875, nom. illeg. (Miller et al. 1978)
- =Orthotrichum macleanum J. Shaw, Cape Monthly Mag. 17: 378. 1879. (Magill & van Rooy 1998)
- =Orthotrichum franzonianum De Not., Rev. Bryol. 6: 55. 1879. (Ros et al. 1999) ≡Orthotrichum rupestre var. franzonianum (De Not.) Venturi, Muscol. Gall.: 157. 1887. (Husnot 1884–1894) ≡Orthotrichum rupestre subsp. franzonii Kindb., Eur. N. Amer. Bryin. 2: 303. 1897[1898]. (Kindberg 1897) ≡Orthotrichum rupestre f. franzonianum (De Not.) Mönk., Laubm. Eur.: 612. 1927. (Mönkemeyer 1927) ≡Orthotrichum rupestre subsp. franzonianum (De Not.) Podp., Consp. Musc. Eur.: 467. 1954, nom. illeg. (Podpěra 1954)
- =Orthotrichum rupestre var. ibericum Venturi, Deux Excurs. Bot.: 171. 1880. (Lara & Garilleti 2014)
- =Orthotrichum nivale Spruce, J. Bot. 19: 11. 1881. (Spruce 1881; Lewinsky 1987)
- =Orthotrichum rupicola Müll. Hal., Bot. Jahrb. Syst. 5: 80. 1883. (Müller 1883a; Lewinsky 1978)
- =Orthotrichum rupestre var. acutum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 13. 1885. (Grönvall 1885; Paris 1904-1906)
- =Orthotrichum rupestre var. arboreum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 13. 1885. (Grönvall 1885; Paris 1904-1906)
- =Orthotrichum lebrunii Besch., Bull. Soc. Bot. France 32: LXII. 1885. (Bescherelle 1885; Lewinsky 1987)
- =Dorcadion rupestre var. octodentatum Hult, Acta Soc. Fauna Fl. Fenn. 3(1): 94. 1886. ≡Orthotrichum rupestre var. octodentatum (Hult) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum bullatum Müll. Hal., Flora 70: 223. 1887. (Müller 1887; Sharp et al. 1994)
- =Orthotrichum rupestre var. ovatum Venturi, Muscol. Gall.: 155. 1887. (Husnot 1884–1894; Podpěra 1954) ≡Orthotrichum rupestre subsp. ovatum (Venturi) Broth., Acta Soc. Sci. Fenn. 19(19): 80. 1892. (Brotherus 1892)
- =Orthotrichum rupestre var. vulgare Venturi, Muscol. Gall.: 156. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum rupestre var. lamelliferum Culm., Rev. Bryol. 20: 58. 1893. (Culmann 1893; Podpěra 1954) ≡Orthotrichum rupestre f. lamelliferum (Culm.) C.E.O. Jensen, Skand. Bladmossfl.: 351. 1939.
- =Orthotrichum sturmii var. reticulatum Culm., Rev. Bryol. 20: 59. 1893. (Culmann 1893) ≡Orthotrichum rupestre var. reticulatum (Culm.) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum latorum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 431. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum reflexum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 431. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum hillebrandii Müll. Hal., Flora 82: 450. 1896. (Müller 1896a; Lewinsky 1993b)
- =Orthotrichum praeperistomatum Venturi, Rev. Bryol. 23: 67. 1896. (Cardot 1896; Lewinsky 1984a) ≡Orthotrichum pulvinatum var. praeperistomatum (Venturi) Sainsbury, Rev. Bryol. Lichénol. 21: 218. 1952. (Sainsbury 1952)
- =Orthotrichum rupestriforme Venturi, Rev. Bryol. 23: 67. 1896. (Cardot 1896; Lewinsky 1984a)
- =Orthotrichum sullivanii Müll. Hal., Hedwigia 37: 137. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum rupestre var. altovadiense Schiffn., Sitzungsber. Deutsch. Naturwiss.-Med. Vereins Böhmen "Lotos" Prag 46: 161. 1898. (Jensen 1939) ≡Orthotrichum rupestre f. altovadiense (Schiffn.) C.E.O. Jensen, Skand. Bladmossfl.: 351. 1939.
- =Orthotrichum sturmii var. bauerianum Schiffn., Sitzungsber. Deutsch. Naturwiss.-Med. Vereins Böhmen "Lotos" Prag 46: 162. 1898. ≡Orthotrichum rupestre var. bauerianum (Schiffn.) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum antarcticum Cardot, Rev. Bryol. 27: 43. 1900. (Cardot 1900; Lewinsky 1987)
- =Orthotrichum carinthiacum Głow., Jahrb. Naturhist. Landesmus. Kärnten 27: 110. 1904. (Wijk et al. 1964) ≡Orthotrichum rupestre var. carinthiacum (Głow.) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum rupestre f. nudum Warnst., Krypt.-Fl. Brandenburg, Laubm.: 374. 1904. ≡Orthotrichum sturmii var. nudum (Warnst.) M. Fleisch. & Warnst., Hedwigia 50: 194. 1911. ≡Orthotrichum rupestre var. nudum (Warnst.) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum gracile Herzog, Ber. Schweiz. Bot. Ges. 15: 60. 1905, nom. illeg. (Lewinsky 1993c)
- =Orthotrichum caespitosum Herzog, Ber. Schweiz. Bot. Ges. 15: 61. 1905. (Wijk et al. 1964) ≡Orthotrichum rupestre subsp. caespitosum (Herzog) Podp., Consp. Musc. Eur.: 468. 1954. (Podpěra 1954)
- =Orthotrichum rupestre var. latifolium Herzog, Bot. Jahrb. Syst. 47: 242. 1911. (Podpěra 1954) ≡Orthotrichum rupestre f. latifolium (Herzog) Podp., Consp. Musc. Eur.: 466. 1954.
- =Orthotrichum sturmii var. macrosporum M. Fleisch. & Warnst., Hedwigia 50: 194. 1911. ≡Orthotrichum rupestre var. macrosporum (M. Fleisch. & Warnst.) Podp., Consp. Musc. Eur.: 467. 1954. (Podpěra 1954)
- =Orthotrichum rupestre var. kurdicum Schiffn., Ann. K. K. Naturhist. Hofmus. 27: 492. 1913. (Schiffner 1913; Kürschner & Frey 2011)
- =Orthotrichum rupestre var. erythrodontium J.J. Amann, Fl. Mouss. Suisse 2: 162. 1918. (Amann & Meylan 1918) ≡Orthotrichum rupestre subsp. erythrodontium (J.J. Amann) Podp., Consp. Musc. Eur.: 468. 1954. (Podpěra 1954)
- =Orthotrichum insidiosum Herzog, Kryptog. Forsch. 4: 282. 1919. (Herzog 1919; Lewinsky 1993c)
- =Orthotrichum praeruptorum Herzog, Biblioth. Bot. 88: 11. 1920. (Herzog 1921; Lewinsky 1987)
- =Orthotrichum rupestre var. erythrostomum J.J. Amann, Bull. Soc. Vaud. Sci. Nat. 53: 94. 1920. (Podpěra 1954)
- =Orthotrichum subrupestre Thér., Revista Chilena Hist. Nat. 27: 11. 1923. (Lewinsky 1987)
- =Orthotrichum macleai Rehmann ex Sim, Trans. Roy. Soc. South Africa 15: 276. 1926. (Sim 1926; Lewinsky 1978)
- =Orthotrichum macfaddeniae R.S. Williams, Bryologist 31(3): 52. 1928. (Williams 1928; Sharp et al. 1994) ≡Orthotrichum rupestre var. macfaddeniae (R.S. Williams) Grout, Moss Fl. N. Amer. 2: 111. 1935. (Grout 1933-1940)
Lewinskya rupestris var. papillosa (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016; Fife 2017)

Basionym: Orthotrichum rupestre var. papillosum Lewinsky, J. Hattori Bot. Lab. 56: 402. 1984. (Lewinsky 1984a)

≡Orthotrichum fimbriatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 430. 1894[1895], nom. illeg. (Brown 1895; Lewinsky 1984a)
Lewinskya rupestris (Schleich. ex Schwägr.) F. Lara, Garilleti & Goffinet var. rupestris
Lewinskya sainsburyi (Allison) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum sainsburyi Allison, Trans. & Proc. Roy. Soc. New Zealand 77: 280. 1947. (Allison 1948)

≡Dorcadionella sainsburyi (Allison) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya schoddei (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum schoddei Lewinsky, J. Hattori Bot. Lab. 72: 34. 1992. (Lewinsky 1992)

≡Dorcadionella schoddei (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya scissa Vigalondo, F. Lara & Garilleti, Bryologist 123(3): 475. 2020. (Vigalondo et al. 2020)
Lewinskya shawii (Wilson) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum shawii Wilson, Musci Eur. Nov. (fasc. 1–2): Mon. 1. 1864. (Schimper 1864-1866)

≡Orthotrichum rupestre subsp. shawii (Wilson) Boulay, Musc. France, Mousses: 326. 1884. (Boulay 1884) ≡Orthotrichum leiocarpum subsp. shawii (Wilson) Kindb., Eur. N. Amer. Bryin. 2: 304. 1897[1898]. (Kindberg 1897) ≡Dorcadionella shawii (Wilson) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya sordida (Sull. & Lesq.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum sordidum Sull. & Lesq., Musci Appalach.: 30 [no. 168]. 1870. (Austin 1870)

≡Orthotrichum affine subsp. sordidum (Sull. & Lesq.) Grout, Moss Fl. N. Amer. 2: 115. 1935. (Grout 1933-1940) ≡Dorcadionella sordida (Sull. & Lesq.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum subperforatum Müll. Hal., Bot. Centralbl. 15: 124. 1883. (Lewinsky 1993a) ≡Dorcadion subperforatum (Müll. Hal.) Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 98. 1890. (Lindberg & Arnell 1890; Lewinsky 1993a)
- =Orthotrichum perforatum Müll. Hal., Bot. Centralbl. 16: 124. 1883. (Müller 1883b; Lewinsky 1993a) ≡Dorcadion perforatum (Müll. Hal.) Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 98. 1890. (Lindberg & Arnell 1890; Lewinsky 1993a)
- =Orthotrichum cribrosum Müll. Hal., Bot. Centralbl. 16: 125. 1883. (Müller 1883b; Lewinsky 1993a) ≡Dorcadion cribrosum (Müll. Hal.) Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 98. 1890. (Lindberg & Arnell 1890; Lewinsky 1993a)
- =Orthotrichum caucasicum Venturi, Muscol. Gall.: 176. 1887. (Husnot 1884–1894; Lewinsky 1993c)
- =Orthotrichum blyttii var. polare Bryhn, Rep. Second Norweg. Arctic Exped. Fram 1898–1902, 2(11): 67. 1906. (Bryhn 1906; Lewinsky 1977)
- =Orthotrichum cancellatum Cardot & Thér., Univ. Calif. Publ. Bot. 2(13): 299. 1906. (Cardot 1906; Lewinsky 1993a)
- =Orthotrichum minutum Kindb., Rev. Bryol. 34: 29. 1907, nom. illeg. (Lewinsky 1993a)
- =Orthotrichum affine subsp. subrivale Kindb., Rev. Bryol. 34: 91. 1907. (Crum & Anderson 1981)
- =Orthotrichum erectidens Cardot, Bull. Herb. Boissier, sér. 2, 8: 336. 1908. (Lewinsky 1992)
- =Orthotrichum clathratum Cardot, Bull. Soc. Bot. Genève 1: 122. 1909. (Lewinsky 1992)
- =Orthotrichum microblepharum f. rubrum Grout, Moss Fl. N. Amer. 2(2): 116. 1935. (Crum & Anderson 1981)
Lewinskya spanotricha (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum spanotrichum Lewinsky, Lindbergia 18: 116. 1993[1994]. (Lewinsky 1993d)

≡Dorcadionella spanotricha (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya speciosa (Nees) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 377. 2016. (Lara et al. 2016)

Basionym: Orthotrichum speciosum Nees, Deutschl. Fl., Abt. II, Cryptog. 5(17): pl. 5. 1819. (Sturm 1819)

≡Orthotrichum affine var. speciosum (Nees) Hartm., Handb. Skand. Fl. (ed. 2) 2: 328. 1832. (Hartman 1832) ≡Dorcadion speciosum (Nees) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Dorcadionella speciosa (Nees) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum speciosum var. nigrescens T. Jensen, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn 4: 59. 1858. (Podpěra 1954) ≡Orthotrichum speciosum f. nigrescens (T. Jensen) Podp., Consp. Musc. Eur.: 471. 1954.
- =Orthotrichum macroblepharum Schimp., Musci Eur. Nov.: 1. 1864. (Schimper 1864-1866; Gangulee 1976) ≡Orthotrichum killiasii var. macroblepharum (Schimp.) Lindb., Öfvers. Kongl. Vetensk.-Akad. Förh. 23: 549. 1867. ≡Orthotrichum speciosum var. macroblepharum (Schimp.) J.J. Amann, Fl. Mouss. Suisse 2: 163. 1918. (Amann & Meylan 1918)
- =Orthotrichum speciosum var. petraeum Brockm., Laubm. Meklenb.: 89. 1869. (Podpěra 1954) ≡Orthotrichum speciosum f. petraeum (Brockm.) Podp., Consp. Musc. Eur.: 471. 1954.
- =Orthotrichum platyblepharis Müll. Hal., Bot. Centralbl. 16: 125. 1883. (Müller 1883b; Lewinsky 1993a) ≡Dorcadion platyblepharis (Müll. Hal.) Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 98. 1890. (Lindberg & Arnell 1890; Lewinsky 1993a)
- =Orthotrichum speciosum var. striatum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 18. 1885. (Grönvall 1885; Podpěra 1954) ≡Orthotrichum speciosum f. striatum (Grönvall) Podp., Consp. Musc. Eur.: 471. 1954.
- =Orthotrichum cylindricum Warnst., Hedwigia 24: 94. 1885. (Vitt 1973a)
- =Orthotrichum erythrostomum Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 12. 1887. (Vitt 1973a) ≡Orthotrichum killiasii var. erythrostomum (Grönvall) W. Krieg., Lotos 56: 318. 1908. ≡Orthotrichum speciosum var. erythrostomum (Grönvall) J.J. Amann, Fl. Mouss. Suisse 2: 163. 1918. (Amann & Meylan 1918)
- =Orthotrichum killiasii var. amannii Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 174. 1889. ≡Orthotrichum speciosum var. amannii (Grönvall) J.J. Amann, Fl. Mouss. Suisse 2: 163. 1918. (Amann & Meylan 1918; Podpěra 1954)
- =Orthotrichum speciosum f. montanum Limpr., Laubm. Deutschl. 2: 92. 1890. (Ochyra et al. 2003)
- =Orthotrichum psilothecium Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 91. 1892. (Macoun & Kindberg 1892; Vitt 1973a)
- =Orthotrichum speciosum f. laxum Venturi ex Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 324. 1899. (Podpěra 1954)
- =Orthotrichum speciosum f. pulvinatum Venturi ex Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 324. 1899. (Podpěra 1954)
- =Orthotrichum killiasii var. transitorium I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 69. 1908. (Hagen 1908) ≡Dorcadion killiasii var. transitorium (I. Hagen) Arnell, Ark. Bot. 13(2): 60. 1913. (Arnell 1913) ≡Orthotrichum speciosum var. transitorium (I. Hagen) Podp., Consp. Musc. Eur.: 472. 1954. (Podpěra 1954)
- =Orthotrichum killiasii var. simplex J.J. Amann, Bull. Soc. Vaud. Sci. Nat. 53: 94. 1920. (Podpěra 1954) ≡Orthotrichum killiasii f. simplex (J.J. Amann) J.J. Amann, Beitr. Kryptogamenfl. Schweiz 7(2): 59. 1933.
Lewinskya spjutii (D.H. Norris & Vitt) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum spjutii D.H. Norris & Vitt, Nova Hedwigia 56(1-2): 260. 1993. (Norris & Vitt 1993)

≡Dorcadionella spjutii (D.H. Norris & Vitt) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya steerei (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum steerei Lewinsky, Mem. New York Bot. Gard. 45: 357. 1987. (Lewinsky 1987)

≡Orthotrichum undulatum Mitt., J. Linn. Soc., Bot. 12: 187. 1869, nom. illeg. (Mitten 1869) ≡Dorcadionella undulata Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016, nom. illeg. (Plášek et al. 2016)
Lewinskya striata (Hedw.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum striatum Hedw., Sp. Musc. Frond.: 163. 1801. (Hedwig 1801)

≡Bryum striatum (Hedw.) L. ex With., Syst. Arr. Brit. Pl. (ed. 4) 3: 794. 1801. (Withering 1801) ≡Weissia striata (Hedw.) Schreb. ex G. Gaertn., B. Mey. & Scherb., Oekon. Fl. Wetterau 3(2): 94. 1802. (Gaertner et al. 1802) ≡Dorcadion striatum (Hedw.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Dorcadionella striata (Hedw.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
- =Orthotrichum leiocarpum Bruch & Schimp., Bryol. Eur. 3: 71. 1837, nom. illeg. (Bruch & Schimper 1837)
- =Orthotrichum polytrichoides Trevis., Herb. Crypt. Trevis. 2: 21. 1853, nom. illeg. (Trevisan de Saint-Léon 1853)
- =Orthotrichum leiocarpum var. rotae De Not., Erb. Crittog. Ital. 25: 211 (1211). 1865. ≡Orthotrichum striatum var. rotae (De Not.) I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 71. 1908. (Hagen 1908; Ochyra et al. 2003)
- =Orthotrichum leiocarpum var. elongatum Lamy, Rev. Bryol. 2: 34. 1875. (Lamy de la Chapelle 1875) ≡Orthotrichum striatum var. elongatum (Lamy) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 92. 1932. (Piccioli 1932)
- =Orthotrichum leiocarpum f. densum Venturi, Muscol. Gall.: 165. 1887. ≡Orthotrichum striatum f. densum (Venturi) Demaret, Bull. Jard. Bot. État Bruxelles 17: 354. 1945. (Podpěra 1954)
- =Orthotrichum leiocarpum f. laxum Venturi, Muscol. Gall.: 165. 1887. (Podpěra 1954) ≡Orthotrichum striatum f. laxum (Venturi) Podp., Consp. Musc. Eur.: 469. 1954.
- =Orthotrichum leiocarpum var. pinetorum G. Roth, Eur. Laubm. 2: 692. 1905. (Roth 1904–1905) ≡Orthotrichum striatum var. pinetorum (G. Roth) Podp., Consp. Musc. Eur.: 470. 1954. (Podpěra 1954)
Lewinskya subulata (Mitt.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum subulatum Mitt., J. Linn. Soc., Bot. 12: 184. 1869. (Mitten 1869)

≡Dorcadionella subulata (Mitt.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya taiwanensis (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum taiwanense Lewinsky, J. Hattori Bot. Lab. 72: 25. 1992. (Lewinsky 1992)

≡Dorcadionella taiwanensis (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016)
Lewinskya tanganyikae (P. de la Varde) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Ulota tanganyikae P. de la Varde, Ark. Bot., n.s. 3: 174. 1955. (Potier de la Varde 1955)

≡Orthotrichum tanganyikae (P. de la Varde) Qinghua Wang & Y. Jia, J. Bryol. 36(1): 78. 2014. (Wang & Jia 2014)
- =Orthotrichum oreophilum Lewinsky & van Rooy, J. Bryol. 16: 74. 1990. (Lewinsky & van Rooy 1990; Wang & Jia 2014) ≡Dorcadionella oreophila (Lewinsky & van Rooy) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 199. 2016. (Plášek et al. 2016; Wang & Jia 2014)
Lewinskya tasmanica (Hook. f. & Wilson) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum tasmanicum Hook. f. & Wilson, London J. Bot. 7: 27. 1848. (Wilson 1848)

≡Dorcadionella tasmanica (Hook. f. & Wilson) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
- =Orthotrichum lawrencei Mitt., Fl. Tasman. 2: 184. 1859. (Lewinsky 1984a)
- =Orthotrichum laterale Hampe, Linnaea 40: 309. 1876. (Lewinsky 1984a) ≡Ulota lateralis (Hampe) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 427. 1880. (Jaeger & Sauerbeck 1879; Lewinsky 1984a)
- =Orthotrichum lateciliatum Venturi, Öfvers. Finska Vetensk.-Soc. Förh. 35: 44. 1893. (Brotherus 1893; Lewinsky 1984a)
- =Orthotrichum cylindrotheca R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 432. 1894. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum conicorostrum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 425. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum obliquum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 428. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum clintonii R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 429. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum inaequale R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 429. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum lancifolium R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 429. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum nudum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 438. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum subulatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 441. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a) ≡Orthotrichum teremakauense Paris, Index Bryol.: 898. 1896. (Lewinsky 1984a)
- =Orthotrichum curvatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 442. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum whiteleggei Müll. Hal., Hedwigia 37: 137. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum encalyptaceum Müll. Hal., Hedwigia 37: 138. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum encalyptaceum var. tenuisetum Müll. Hal., Hedwigia 37: 138. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum austropulchellum Müll. Hal., Hedwigia 37: 139. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum beckettii Müll. Hal., Hedwigia 37: 139. 1898. (Müller 1898c; Lewinsky 1984a)
- =Orthotrichum campbelliae Watts & Whitel., Proc. Linn. Soc. New South Wales 30: 94. 1906. (Watts & Whitelegge 1906; Lewinsky 1984a)
Lewinskya tasmanica var. parvitheca (R. Br. bis) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum parvitheca R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 440. 1894[1895]. (Brown 1895; Lewinsky 1984a)

≡Orthotrichum tasmanicum var. parvitheca (R. Br. bis) Lewinsky, J. Hattori Bot. Lab. 56: 411. 1984. (Lewinsky 1984a)
- =Orthotrichum beckettii R. Br. bis, Trans. & Proc. New Zealand Inst. 35: 333. 1903, nom. illeg. (Lewinsky 1984a)
Lewinskya tasmanica (Hook. f. & Wilson) F. Lara, Garilleti & Goffinet var. tasmanica
Lewinskya tenuicaulis (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum tenuicaule Lewinsky, J. Hattori Bot. Lab. 75: 45. 1994. (Lewinsky 1994)

≡Dorcadionella tenuicaulis (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya tortidontia (F. Lara, Garilleti & Mazimpaka) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum tortidontium F. Lara, Garilleti & Mazimpaka, Nova Hedwigia 63: 517. 1996. (Lara et al. 1996)

≡Dorcadionella tortidontia (F. Lara, Garilleti & Mazimpaka) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya tortifolia (Lewinsky) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum tortifolium Lewinsky, J. Hattori Bot. Lab. 72: 23. 1992. (Lewinsky 1992)

≡Dorcadionella tortifolia (Lewinsky) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya transcaucasica Eckstein, Garilleti & F. Lara, J. Bryol. 40(1): 32. 2018[2017]. (Eckstein et al. 2018)
Lewinskya truncata (Lewinsky & Deguchi) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum truncatum Lewinsky & Deguchi, Bryologist 89: 216. 1986[1987]. (Lewinsky & Deguchi 1989)

≡Dorcadionella truncata (Lewinsky & Deguchi) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya truncatodentata (Müll. Hal.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum truncatodentatum Müll. Hal., Linnaea 43: 442. 1882. (Müller 1882)

≡Dorcadionella truncatodentata (Müll. Hal.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya vicaria (Laz.) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum vicarium Laz., Žurn. Inst. Bot. Vseukrajins'k. Akad. Nauk 26–27: 210. 1938. (Lazarenko 1938)

≡Dorcadionella vicaria (Laz.) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Lewinskya vladikavkana (Venturi) F. Lara, Garilleti & Goffinet, Cryptog., Bryol. 37(4): 378. 2016. (Lara et al. 2016)

Basionym: Orthotrichum vladikavkanum Venturi, Muscol. Gall.: 167. 1887. (Husnot 1884–1894)

≡Dorcadionella vladikavkana (Venturi) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 65(3): 200. 2016. (Plášek et al. 2016)
Macrocoma (Hornsch. ex Müll. Hal.) Grout, Bryologist 47(1): 4. 1944. (Grout 1944)

Basionym: Macromitrium sect. Macrocoma Hornsch. ex Müll. Hal., Bot. Zeitung (Berlin) 3(32): 522. 1845. (Müller 1845a)
Macrocoma abyssinica (Müll. Hal.) Vitt, Bryologist 83: 419. 1980[1981]. (Vitt 1980)

Basionym: Macromitrium abyssinicum Müll. Hal., Syn. Musc. Frond. 1: 722. 1849. (Müller 1849)
- =Macromitrium virescens Müll. Hal., Nuovo Giorn. Bot. Ital. 4: 15. 1872. (Venturi 1872; Vitt 1980)
- =Macromitrium protractum Broth., Hedwigia 52: 309. 1912. (Vitt 1980)
Macrocoma abyssinica (Müll. Hal.) Vitt var. abyssinica
Macrocoma abyssinica var. megalospora (Thér. & Naveau) Wilbraham, J. Bryol. 39(4): 325. 2017. (Wilbraham 2017)

Basionym: Macromitrium megalosporum Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 51. 1927. (Naveau 1927; Wilbraham 2017)
Macrocoma brasiliensis (Mitt.) Vitt, Bryologist 83: 409. 1980[1981]. (Vitt 1980)

Basionym: Macromitrium brasiliense Mitt., J. Linn. Soc., Bot. 12: 197. 1869. (Mitten 1869)
- =Macromitrium capillicaule Müll. Hal. ex Broth., Nat. Pflanzenfam. I(3): 477. 1902. (Vitt 1980) ≡Macrocoma capillicaulis (Müll. Hal. ex Broth.) Vitt, Rev. Bryol. Lichénol. 39: 209. 1973. (Vitt 1973b; Vitt 1980)
Macrocoma frigida (Müll. Hal.) Vitt, Rev. Bryol. Lichénol. 39: 209. 1973. (Vitt 1973b)

Basionym: Macromitrium frigidum Müll. Hal., Bot. Zeitung (Berlin) 15: 579. 1857. (Müller 1857a)
- =Macromitrium pringlei Cardot, Rev. Bryol. 36: 108. 1909. (Cardot 1909b; Sharp et al. 1994)
Macrocoma gastonyi D.H. Norris & Vitt, Rev. Bryol. Lichénol. 39: 209. 1973. (Vitt 1973b)
Macrocoma iwatsukii Vitt, Bryologist 83: 422. 1980[1981]. (Vitt 1980)
Macrocoma lycopodioides (Schwägr.) Vitt, Rev. Bryol. Lichénol. 39: 219. 1973. (Vitt 1973b)

Basionym: Macromitrium lycopodioides Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 141. 1827. (Schwägrichen 1827)

≡Macromitrium tenue var. lycopodioides (Schwägr.) Müll. Hal., Bot. Zeitung (Berlin) 3: 522. 1845. (Müller 1845a)
- =Macromitrium gimalacii Bizot & Onr., Bull. Jard. Bot. Natl. Belg. 46: 359. 1976. (Onraedt 1976; Arts 2005)
Macrocoma orthotrichoides (Raddi) Wijk & Margad., Taxon 11: 221. 1962. (Wijk & Margadant 1962)

Basionym: Lasia orthotrichoides Raddi, Critt. Bras.: 6. 1822. (Raddi 1822)

≡Orthotrichum filiforme Hook. & Grev., Edinburgh J. Sci. 1: 116. 1824, nom. illeg. (Hooker & Greville 1824) ≡Macromitrium filiforme Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 64. 1826, nom. illeg. (Schwägrichen 1826; Vitt 1973b) ≡Chaetophora orthotrichoides (Raddi) Brid., Bryol. Univ. 2: 339. 1827. (Bridel 1827b; Greene 1986) ≡Macrocoma filiformis Grout, Bryologist 47: 5. 1944, nom. illeg. (Grout 1944)
- =Macromitrium phyllorhizans Müll. Hal., Mém. Soc. Natl. Sci. Nat. Cherbourg, sér. 3, 21: 262. 1877. (Vitt 1980) ≡Macromitrium angulicaule var. phyllorhizans (Müll. Hal.) Paris, Index Bryol. Suppl.: 236. 1900, nom. illeg.
- =Macromitrium filiforme var. squarrulosum Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 9–10: 259. 1878. (Yano 2011)
- =Macromitrium angulicaule Müll. Hal., Hedwigia 36: 105. 1897. (Müller 1897e; Vitt 1980)
- =Macromitrium subpycnangium Müll. Hal., Bull. Herb. Boissier 6: 100. 1898. (Müller 1898a; Vitt 1980)
- =Macromitrium chrysomitrium Müll. Hal., Bull. Herb. Boissier 6: 101. 1898. (Müller 1898a; Vitt 1980) ≡Macrocoma chrysomitria (Müll. Hal.) Sehnem, Pesquisas, Bot. 32: 13. 1978. (Sehnem 1978; Vitt 1980)
- =Macromitrium macropyxis Broth., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 3(7): 21. 1900. (Brotherus 1900a; Vitt 1980)
Macrocoma pulchella (Hornsch.) Vitt, Rev. Bryol. Lichénol. 39: 219. 1973. (Vitt 1973b)

Basionym: Schlotheimia pulchella Hornsch., Horae Phys. Berol.: 61. 1820. (Hornschuch 1820)

≡Macromitrium pulchellum (Hornsch.) Brid., Bryol. Univ. 1: 313. 1826. (Bridel 1826)
- =Orthotrichum hornschuchii Hook. & Grev., Edinburgh J. Sci. 1: 129. 1824. (Hooker & Greville 1824)
Macrocoma tenuis (Hook. & Grev.) Vitt, Rev. Bryol. Lichénol. 39(2): 217. 1973. (Vitt 1973b)

Basionym: Orthotrichum tenue Hook. & Grev., Edinburgh J. Sci. 1: 120. 1824. (Hooker & Greville 1824)

≡Macromitrium tenue (Hook. & Grev.) Brid., Bryol. Univ. 1: 740. 1826. (Bridel 1826)
- =Orthotrichum microphyllum Hook. & Grev., Edinburgh J. Sci. 1: 121. 1824. (Hooker & Greville 1824; Vitt 1980) ≡Macromitrium microphyllum (Hook. & Grev.) Brid., Bryol. Univ. 1: 737. 1826. (Bridel 1826; Vitt 1980)
- =Maschalocarpus ecklonii Spreng., Syst. Veg. [Sprengel] 4(2): 321. 1827. (Sprengel 1827; Vitt 1980)
- =Macromitrium dregei Hornsch., Linnaea 15: 131. 1841. (Vitt 1980) ≡Macromitrium tenue var. dregei (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 522. 1845. (Müller 1845a)
- =Macromitrium eucalyptorum Müll. Hal. & Hampe, Linnaea 26: 500. 1853[1855]. (Vitt 1980)
- =Macromitrium geheebii Müll. Hal., Linnaea 40: 308. 1876. (Vitt 1980)
- =Macromitrium anacamptophyllum Müll. Hal., Linnaea 42: 371. 1879. (Müller 1879a; Vitt 1980)
- =Macromitrium confusum Mitt., J. Linn. Soc., Bot. 22: 305. 1886. (Mitten 1886; Vitt 1980)
- =Macromitrium hyalinum Broth., Bot. Jahrb. Syst. 20: 185. 1894. (Brotherus 1894a; Vitt 1980)
- =Macromitrium novae-valesiae Müll. Hal., Hedwigia 37: 143. 1898. (Müller 1898c; Vitt 1980)
- =Macromitrium recurvulum Müll. Hal., Hedwigia 37: 143. 1898. (Müller 1898c; Vitt 1980) ≡Macromitrium eucalyptorum var. recurvulum (Müll. Hal.) Sainsbury, Trans. & Proc. Roy. Soc. New Zealand 75: 179. 1945.
- =Macromitrium dawsoniomitrium Müll. Hal., Hedwigia 38: 116. 1899. (Müller 1899; Vitt 1980)
- =Leiomitrium capense Broth., Denkschr. Kaiserl. Akad. Wiss., Wien Math.-Naturwiss. Kl. 88: 736. 1913. (Vitt 1981) ≡Coleochaetium capense (Broth.) Broth., Nat. Pflanzenfam., ed. 2, 11: 26. 1925. (Brotherus 1925; Vitt 1981)
- =Macromitrium adelphinum Cardot, Hist. Phys. Madagascar, Mousses: 233. 1915. (Renauld & Cardot 1915; Wilbraham 2017)
- =Macromitrium sobrinum Cardot, Hist. Phys. Madagascar, Mousses: 233. 1915. (Renauld & Cardot 1915; Vitt 1980)
- =Macromitrium zikanii Herzog, Arch. Bot. São Paulo 1(2): 65. 1924. (Herzog 1924; Valente et al. 2020)
Macrocoma tenuis subsp. sullivantii (Müll. Hal.) Vitt, Bryologist 83(4): 413. 1980[1981]. (Vitt 1980; Vitt 2014)

Basionym: Macromitrium sullivantii Müll. Hal., Bot. Zeitung (Berlin) 20(43): 361. 1862. (Müller 1862; Vitt 1980)

≡Macrocoma sullivantii (Müll. Hal.) Grout, Bryologist 47: 5. 1944. (Grout 1944; Vitt 1980)
- =Macromitrium perrottetii Müll. Hal., Syn. Musc. Frond. 1: 721. 1849. (Müller 1849; Vitt 1980)
- =Macromitrium squarrulosum Müll. Hal., Bot. Zeitung (Berlin) 11: 61. 1853. (Vitt 1980)
- =Macromitrium mexicanum Mitt., J. Linn. Soc., Bot. 12: 198. 1869. (Mitten 1869; Vitt 1980)
- =Macromitrium paraphysatum Mitt., J. Linn. Soc., Bot. 12: 198. 1869. (Mitten 1869; Vitt 1980)
- =Macromitrium leiboldtii Hampe, Bot. Zeitung (Berlin) 28: 50. 1870. (Vitt 1980)
- =Macromitrium ghiesbreghtii Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 188. 1872. (Bescherelle 1872; Vitt 1980)
- =Macromitrium ghiesbreghtii var. brevifolium Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 188. 1872, nom. dub. (Bescherelle 1872; Vitt 1980)
- =Macromitrium progressum Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 9–10: 259. 1878. (Vitt 1980)
- =Macromitrium intricatum Müll. Hal., Flora 82: 452. 1896. (Müller 1896a; Vitt 1980) ≡Macrocoma intricata (Müll. Hal.) H.A. Mill., H. Whittier & B. Whittier, Bryophyt. Biblioth. 16: 187. 1978. (Miller et al. 1978; Vitt 1980)
- =Macromitrium bolivianum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 126. 1897. (Müller 1897f; Vitt 1980)
- =Macromitrium lampromitrium Müll. Hal., Bull. Herb. Boissier 6: 101. 1898. (Müller 1898a; Vitt 1980)
- =Macromitrium pycnangium Müll. Hal. ex Broth., Bull. Herb. Boissier 6: 102. 1898. (Müller 1898a; Vitt 1980) ≡Macrocoma pycnangia (Müll. Hal. ex Broth.) Sehnem, Pesquisas, Bot. 32: 12. 1978. (Sehnem 1978; Vitt 1980)
- =Macromitrium consanguineum Cardot, Beih. Bot. Centralbl. 17: 11. 1904. (Cardot 1904; Vitt 1980)
- =Macromitrium braunioides Cardot, Rev. Bryol. 36: 108. 1909. (Cardot 1909b; Vitt 1980)
- =Macromitrium paraphysatum var. chilense Thér., Revista Chilena Hist. Nat. 25: 303. 1921. (Thériot 1921b; Vitt 1980)
- =Macromitrium okamurae Broth., Öfvers. Finska Vetensk.-Soc. Förh. 62A(9): 13. 1921. (Vitt 1980)
Macrocoma tenuis (Hook. & Grev.) Vitt subsp. tenuis
Macromitrium Brid., Muscol. Recent. Suppl. 4: 132. 1819[1818]. (Bridel 1819)
- =Dasymitrium Lindb., J. Bot. 2: 385. 1864.
- =Macromitrium sect. Leiostoma Mitt., J. Linn. Soc., Bot. 12: 194. 1869. (Mitten 1869) ≡Leiostoma (Mitt.) Mitt., Proc. Linn. Soc. New South Wales 7: 99. 1882. (Mitten 1882; Crosby & Magill 1981)
- =Teichodontium Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 119. 1897. (Müller 1897f)
Macromitrium acuminatum (Reinw. & Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b)

Basionym: Schlotheimia acuminata Reinw. & Hornsch., Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 14: 711. 1829. (Reinwardt & Hornschuch 1829)
- =Macromitrium elongatum Dozy & Molk. ex Bosch & Sande Lac., Bryol. Jav. 1: 116. 1859, nom. illeg. (Dozy & Molkenboer 1861; Vitt et al. 1995)
Macromitrium acutirameum Mitt., J. Linn. Soc., Bot. 15: 62. 1876. (Mitten 1876)
Macromitrium acutissimum Müll. Hal., Flora 83: 333. 1897. (Müller 1897d)
Macromitrium altum Müll. Hal., Flora 82: 453. 1896. (Müller 1896a)
Macromitrium amaniense P. de la Varde, Ark. Bot., n.s. 3: 174. 1955. (Potier de la Varde 1955)
Macromitrium amboroicum Herzog, Beih. Bot. Centralbl., Abt. 2, 26(2): 68. 1909. (Herzog 1909)
Macromitrium angulatum Mitt., J. Linn. Soc., Bot. 10: 167. 1868. (Mitten 1868)
- =Macromitrium papuanum Dixon, J. Bot. 61(Suppl.): 63. 1923. (Vitt et al. 1995)
- =Macromitrium wellingtonianum Vitt, J. Hattori Bot. Lab. 54: 61. 1983. (Vitt 1983; Vitt et al. 1995)
Macromitrium angulosum Thwaites & Mitt., J. Linn. Soc., Bot. 13: 300. 1873. (Mitten 1873b)
Macromitrium angustifolium Dozy & Molk., Musc. Frond. Archip. Ind.: 16. 1844. (Dozy & Molkenboer 1844)
- =Macromitrium fruhstorferi Cardot, Rev. Bryol. 28: 113. 1901. (Cardot 1901; Eddy 1996)
Macromitrium antarcticum C.H. Wright, J. Linn. Soc., Bot. 37: 264. 1905. (Brown et al. 1905)
Macromitrium archboldii E.B. Bartram, Lloydia 5: 272. 1942. (Bartram 1942a)
- =Macromitrium ruberrimum Dixon, Farlowia 1: 31. 1943. (Dixon 1943; Vitt et al. 1995)
Macromitrium archeri Mitt., Fl. Tasman. 2: 183. 1859. (Hooker 1860)
- =Macromitrium uncinatum Müll. Hal., Bot. Zeitung (Berlin) 11: 62. 1853, nom. illeg. (McCarthy 2006)
- =Macromitrium pusillum Mitt., Fl. Tasman. 2: 183. 1859. (Hooker 1860; McCarthy 2006)
- =Macromitrium asperulum Mitt., Fl. Tasman. 2: 376. 1859. (Hooker 1860; McCarthy 2006)
- =Macromitrium muelleri Hampe, Linnaea 30: 634. 1860. (Hampe 1860b; McCarthy 2006)
Macromitrium atratum Herzog, Repert. Spec. Nov. Regni Veg. 21: 30. 1925. (Herzog 1925)
Macromitrium atroviride R.S. Williams, Bull. New York Bot. Gard. 3(9): 131. 1903. (Williams 1903)
Macromitrium attenuatum Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 329. 1865. (Hampe 1865)
Macromitrium aurantiacum Paris & Broth., Rev. Bryol. 34: 43. 1907. (Paris 1907b)
Macromitrium aurescens Hampe, Linnaea 30: 633. 1860. (Hampe 1860b)
- =Macromitrium sordidevirens Müll. Hal., Linnaea 37: 153. 1873[1872]. (McCarthy 2006)
- =Macromitrium cylindromitrium Müll. Hal., Hedwigia 37: 146. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium aurescens Hampe var. aurescens
Macromitrium aurescens var. caledonicum (Thér.) Thouvenot, Cryptog., Bryol. 40(16): 177. 2019. (Thouvenot 2019)

Basionym: Macromitrium cylindromitrium var. caledonicum Thér., Bull. Acad. Int. Géogr. Bot. 19: 21. 1909. (Thériot 1909)
Macromitrium aureum Müll. Hal., Bot. Zeitung (Berlin) 15: 580. 1857. (Müller 1857a; Allen 2002)
Macromitrium austrocirrosum E.B. Bartram, Lloydia 5: 273. 1942. (Bartram 1942a)
Macromitrium bifasciculare Müll. Hal. ex Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 83. 1903. (Dusén 1903)
Macromitrium bifasciculatum Müll. Hal., Hedwigia 37: 150. 1898. (Müller 1898c)
Macromitrium binsteadii Dixon, Ann. Cryptog. Exot. 3: 189. 1930. (Potier de la Varde 1930)
- =Macromitrium assimile Broth. & Dixon, J. Bot. 53: 264. 1915, nom. illeg. (Dixon 1915b; Wijk et al. 1964)
Macromitrium bistratosum E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 15(27): 339. 1940. (Bartram 1940)
Macromitrium blumei Nees ex Schwägr., Sp. Musc. Frond., Suppl. 4: 316. 1842. (Schwägrichen 1842)
- =Schlotheimia teres Dozy & Molk., Musc. Frond. Archip. Ind.: 19. 1844. (Dozy & Molkenboer 1844; Suleiman et al. 2006) ≡Macromitrium teres (Dozy & Molk.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b; Suleiman et al. 2006)
- =Macromitrium contortum Thwaites & Mitt., J. Linn. Soc., Bot. 13: 301. 1873. (Mitten 1873b; Guo et al. 2006)
- =Macromitrium copelandii Broth., Philipp. J. Sci., C. 3: 16. 1908. (Brotherus 1908b; Tan & Iwatsuki 1991)
- =Macromitrium assimile Broth., Leafl. Philipp. Bot. 6: 1978. 1913. (Brotherus 1913; Tan & Iwatsuki 1991)
- =Macromitrium magnirete Dixon, Bull. Torrey Bot. Club 51: 234. 1924. (Dixon 1924a; Guo et al. 2006)
- =Macromitrium horridum Dixon, Ann. Bryol. 5: 30. 1932. (Dixon 1932a; Eddy 1996)
Macromitrium blumei Nees ex Schwägr. var. blumei
Macromitrium blumei var. zollingeri (Mitt. ex Bosch & Sande Lac.) S.L. Guo, B.C. Tan & Virtanen, Nova Hedwigia 82: 476. 2006. (Guo et al. 2006)

Basionym: Macromitrium zollingeri Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 113. 1859. (Dozy & Molkenboer 1861; Guo et al. 2006)
- =Macromitrium annamense Broth. & Paris, Nat. Pflanzenfam., ed. 2, 11: 39. 1925. (Brotherus 1925; Guo et al. 2006)
Macromitrium brachycarpum Mitt., J. Linn. Soc., Bot. 12: 204. 1869. (Mitten 1869)
Macromitrium brachypodium Müll. Hal., Bot. Zeitung (Berlin) 15: 778. 1857. (Müller 1857b)

≡Leiostoma brachypodium (Müll. Hal.) Mitt., Proc. Linn. Soc. New South Wales 7: 99. 1882.
- =Macromitrium brevisetaceum Hampe, Linnaea 38: 663. 1874. (Vitt & Ramsay 1985)
Macromitrium braunii Müll. Hal., Syn. Musc. Frond. 2: 643. 1851. (Müller 1851)
Macromitrium brevicaule (Besch.) Broth., Nat. Pflanzenfam. I(3): 486. 1903. (Brotherus 1903)

Basionym: Micromitrium brevicaule Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 211. 1873. (Bescherelle 1873)
- =Macromitrium mucronulatum Müll. Hal., Hedwigia 37: 146. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium mucronatulum Müll. Hal., Hedwigia 37: 147. 1898. (Müller 1898c; Vitt & Ramsay 1985)
- =Macromitrium wattsii Broth., Öfvers. Finska Vetensk.-Soc. Förh. 40: 169. 1898. (Brotherus 1898; McCarthy 2006)
- =Macromitrium subbrevicaule Broth. & Watts, Proc. Linn. Soc. New South Wales 40: 371. 1915. (Brotherus & Watts 1915; Vitt & Ramsay 1985)
- =Macromitrium subfragile Dixon & Sainsbury, Trans. & Proc. Roy. Soc. New Zealand 75: 178. 1945. (Vitt & Ramsay 1985)
Macromitrium brevihamatum Herzog, Biblioth. Bot. 87: 68. 1916. (Herzog 1916a)
Macromitrium brevisetum Mitt., Fl. Vit.: 379. 1873. (Mitten 1873a)
- =Macromitrium aristocalyx Müll. Hal., Flora 82: 454. 1896. (Müller 1896a; Wijk et al. 1964)
Macromitrium brevissimum Dixon, J. Siam Soc., Nat. Hist. Suppl. 9: 19. 1932. (Dixon 1932b)
Macromitrium bujongolanum O'Shea, Trop. Bryol. 29: 5. 2008. (O'Shea 2008)

Replaced synonym: Macromitrium fragile G. Negri, Ann. Bot. (Rome) 7: 166. 1908, nom. illeg. (Negri 1908)
Macromitrium caldense Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 12. 1876. (Ångström 1876)
Macromitrium caloblastoides Müll. Hal., Hedwigia 37: 151. 1898. (Müller 1898c)
- =Macromitrium dimorphum Müll. Hal., Hedwigia 37: 152. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium calocalyx Müll. Hal., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881)
- =Macromitrium semipapillosum Thér. & P. de la Varde, Recueil Publ. Soc. Havraise Études Diverses 91: 89. 1924. (Thériot 1924; Wilbraham 2018)
Macromitrium calomicron Broth., Reise Ostafr., Syst. Arbeit. 3: 55. 1908. (Brotherus 1908a)
Macromitrium calymperoideum Mitt., Hooker's J. Bot. Kew Gard. Misc. 8: 354. 1856. (Mitten 1856)
Macromitrium campoanum Thér., Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 7: 49. 1939. (Herzog 1938a)
Macromitrium cardotii Thér., Diagn. Esp. Var. Nouv. Mouss. 8: 5. 1910. (Thériot 1910b)
Macromitrium cataractarum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 124. 1897. (Müller 1897f)
Macromitrium cavaleriei Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 16: 40. 1906. (Thériot 1906)
- =Macromitrium giraldii var. acrophylloides Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 5: 187. 1898. (Müller 1898d; Lou et al. 2014)
- =Macromitrium syntrichophyllum Thér. & P. de la Varde, Rev. Bot. Bull. Mens. 30: 347. 1918. (Guo & He 2008a)
- =Macromitrium handelii Broth., Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. 1, 131: 212. 1923. (Lou et al. 2014)
- =Macromitrium gebaueri Broth., Symb. Sin. 4: 72. 1929. (Brotherus 1929; Guo & He 2008a)
- =Macromitrium syntrichophyllum var. longisetum Thér. & Reimers, Hedwigia 71: 55. 1931. (Guo & He 2008a)
- =Macromitrium sinense E.B. Bartram, Ann. Bryol. 8: 13. 1936. (Bartram 1935; Guo & He 2008a)
- =Macromitrium rigbyanum Dixon, J. Bombay Nat. Hist. Soc. 39: 777. 1937. (Dixon 1937; Lou et al. 2014)
- =Macromitrium cancellatum Y.X. Xiong, Acta Bot. Yunnan. 22: 405. 2000. (Xiong 2000; Lou et al. 2014)
Macromitrium chloromitrium (Besch.) Wilbraham, Cryptog., Bryol. 31: 52. 2010. (Wilbraham & Ellis 2010)

Basionym: Macromitrium fimbriatum var. chloromitrium Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 359. 1880. (Bescherelle 1879)
Macromitrium clastophyllum Cardot, Beih. Bot. Centralbl. 17: 12. 1904. (Cardot 1904)
Macromitrium clavatum Schimp. ex Grout, Bryologist 47: 16. 1944. (Grout 1944)
Macromitrium clemensiae E.B. Bartram, Philipp. J. Sci. 61: 242. 1936. (Bartram 1936)
Macromitrium comatum Mitt., Trans. Linn. Soc. London, Bot. 3: 163. 1891. (Mitten 1891)
Macromitrium complicatulum Müll. Hal., Monsunia 1: 175. 1900. (Brotherus 1900b)
Macromitrium concinnum Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 132, 110. 1860. (Dozy & Molkenboer 1861)
Macromitrium constrictum Hampe & Lorentz, Bot. Zeitung (Berlin) 26: 798. 1868. (Lorentz 1868)
Macromitrium crassirameum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 125. 1897. (Müller 1897f)
Macromitrium crassiusculum Lorentz, Bot. Zeitung (Berlin) 24: 187. 1866. (Lorentz 1866)
Macromitrium crenulatum Hampe, Linnaea 32: 145. 1863. (Hampe 1863)
Macromitrium crinale Broth. & Geh., Biblioth. Bot. 44: 11. 1898. (Geheeb 1898)
- =Macromitrium mindorense Broth., Philipp. J. Sci., C. 2: 340. 1907. (Eddy 1996)
Macromitrium crispatulum Mitt., J. Linn. Soc., Bot. 12: 210. 1869. (Mitten 1869)
Macromitrium crosbyorum B.H. Allen & Vitt, Novon 8: 113. 1998. (Allen 1998)
Macromitrium cucullatulum Müll. Hal., Malpighia 7: 296. 1893. (Brizi 1893)
Macromitrium cuspidatum Hampe, Icon. Musc. (Hampe): pl. 20. 1844. (Hampe 1844)
- =Macromitrium elongatum Dozy & Molk., Musc. Frond. Archip. Ind.: 16. 1844. (Dozy & Molkenboer 1844; Eddy 1996)
Macromitrium cuspidatum Hampe var. cuspidatum
Macromitrium cuspidatum var. gracile Dixon, Philipp. J. Sci. 68: 180. 1939. (Bartram 1939b; Tan & Iwatsuki 1991)
Macromitrium cylindricum Mitt., J. Linn. Soc., Bot. 12: 210. 1869. (Mitten 1869)
Macromitrium densum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 51. 1859. (Mitten 1859b)
Macromitrium diaphanum Müll. Hal., Linnaea 37: 151. 1873[1872]. (Müller 1872a)
- =Macromitrium circinicladum Müll. Hal., Hedwigia 37: 145. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium dielsii Broth. ex Vitt & H.P. Ramsay, J. Hattori Bot. Lab. 59: 339. 1985. (Vitt & Ramsay 1985)
Macromitrium divaricatum Mitt., J. Linn. Soc., Bot. 12: 217. 1869. (Mitten 1869)
Macromitrium diversifolium Broth., Hedwigia 34: 126. 1895. (Brotherus 1895b)
- =Macromitrium divortiarum Sehnem, Pesquisas, Bot. 32: 24. 1978. (Sehnem 1978; Valente et al. 2020)
Macromitrium dubium Schimp. ex Müll. Hal., Syn. Musc. Frond. 1: 723. 1849. (Müller 1849)
- =Macromitrium vernicosum Schimp., Ann. Sci. Nat., Bot., sér. 6, 3: 202. 1876. (Bescherelle 1876; Wijk et al. 1964)
Macromitrium dusenii Müll. Hal. ex Broth., Bot. Jahrb. Syst. 24: 241. 1897. (Brotherus 1897)
Macromitrium echinatum B.H. Allen, Novon 8: 115. 1998. (Allen 1998)
Macromitrium ecrispatum Dixon, Repert. Spec. Nov. Regni Veg. 38: 104. 1935. (Herzog 1935)
Macromitrium eddyi B.C. Tan & Shevock, Proc. Calif. Acad. Sci., ser. 4, 62(3): 542. 2015. (Tan & Shevock 2015)
Macromitrium ellipticum Hampe, Nuovo Giorn. Bot. Ital. 4: 274. 1872. (Hampe 1872)
Macromitrium emersulum Müll. Hal., Flora 82: 452. 1896. (Müller 1896a)
Macromitrium eriomitrium Müll. Hal., Bull. Herb. Boissier 6: 98. 1898. (Müller 1898a)
Macromitrium erubescens E.B. Bartram, Lloydia 5: 269. 1942. (Bartram 1942a)
Macromitrium erythrocomum H.P. Ramsay, A. Cairns & Meagher, Telopea 20: 262. 2017. (Ramsay et al. 2017)
Macromitrium evrardii Thér., Rev. Bryol., n.s. 3: 181. 1931. (Thériot 1930b)
Macromitrium exsertum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 35: 46. 1893. (Brotherus 1893)
Macromitrium falcatulum Müll. Hal., Linnaea 38: 558. 1874. (Müller 1874b)
- =Macromitrium merrillii Broth., Öfvers. Finska Vetensk.-Soc. Förh. 47(14): 4. 1905. (Eddy 1996)
- =Macromitrium winkleri Broth., Bot. Jahrb. Syst. 49: 350. 1912. (Vitt et al. 1995)
Macromitrium fendleri Müll. Hal., Linnaea 42: 486. 1879. (Müller 1879b)
Macromitrium fernandezianum Broth., Nat. Hist. Juan Fernandez 2: 422. 1924. (Brotherus 1924c)
Macromitrium ferriei Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 18: 250. 1908. (Thériot 1908)
- =Macromitrium comatulum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 62A(9): 14. 1921. (Noguchi & Iwatsuki 1989)
- =Macromitrium quercicola Broth., Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. 1, 131: 212. 1923. (Guo et al. 2007a)
- =Macromitrium quercicola var. angustifolium Broth., Symb. Sin. 4: 72. 1929, nom. dub. (Brotherus 1929; Cao & Koponen 2004)
- =Macromitrium inflexifolium Dixon, J. Siam Soc., Nat. Hist. Suppl. 9: 20. 1932. (Dixon 1932b; Wu et al. 2011)
- =Macromitrium nipponicum Nog., J. Hattori Bot. Lab. 20: 281. 1958. (Noguchi 1958; Wu et al. 2011)
Macromitrium fimbriatum (P. Beauv.) Schwägr., Sp. Musc. Frond., Suppl. 2, 1(1): 37. 1823. (Schwägrichen 1823)

Basionym: Orthotrichum fimbriatum P. Beauv., Prodr. Aethéogam.: 80. 1805. (Palisot de Beauvois 1805)
- =Weissia uncinata Brid., Muscol. Recent. Suppl. 1: 113. 1806. (Bridel 1806–1817; Crosby et al. 1983) ≡Orthotrichum uncinatum (Brid.) Arn., Disp. Méth. Mousses: 17. 1825. (Crosby et al. 1983) ≡Macromitrium uncinatum (Brid.) Brid., Bryol. Univ. 1: 308. 1826. (Bridel 1826; Crosby et al. 1983)
- =Hypnum striatum Thouars, Esquisse Fl. Tristan d'Acugna: 30. 1808, nom. illeg. (Thouars 1808)
- =Macromitrium nanothecium var. sublaeve Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 113. 1929. (Thériot 1929a; Wilbraham 2018)
Macromitrium fitzgeraldii Lesq. & James, Man. Mosses N. America: 178. 1884, nom. dub. (Lesquereux & James 1884; Crum & Anderson 1981)
Macromitrium flavopilosum R.S. Williams, Bull. Torrey Bot. Club 38: 34. 1911. (Williams 1911)
Macromitrium flexuosum Mitt., J. Linn. Soc., Bot. 12: 208. 1869. (Mitten 1869)
Macromitrium formosae Cardot, Beih. Bot. Centralbl., Abt. 2, 19(2): 104. 1905. (Cardot 1905; Guo et al. 2007b)
Macromitrium fortunatii Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 19: 19. 1909. (Thériot 1909)
- =Macromitrium fortunatii var. nigrescens Tixier, Rev. Bryol. Lichénol. 34: 140. 1966. (Tixier 1966; Li et al. 2018)
Macromitrium fragile Hampe, Linnaea 20: 71. 1847. (Hampe 1847)
Macromitrium fragilicuspis Cardot, Rev. Bryol. 36: 109. 1909. (Cardot 1909b)
Macromitrium francii Thér., Bull. Acad. Int. Géogr. Bot. 17: 308. 1907. (Thériot 1907)
- =Macromitrium contractum Thér., Bull. Acad. Int. Géogr. Bot. 18: 253. 1908. (Thériot 1908; Thouvenot 2019)
Macromitrium frondosum Mitt., J. Linn. Soc., Bot. 12: 217. 1869. (Mitten 1869)
Macromitrium frustratum B.H. Allen, Novon 8: 115. 1998. (Allen 1998)
Macromitrium fulgescens E.B. Bartram, Bryologist 47: 12. 1944. (Grout 1944)

Replaced synonym: Macromitrium fuscescens E.B. Bartram, Contr. U.S. Natl. Herb. 26: 89. 1928, nom. illeg. (Bartram 1928; Bowers 1974)
Macromitrium fulvum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 52. 1859. (Mitten 1859b)
Macromitrium funicaule Schimp. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 359. 1880. (Bescherelle 1879)
Macromitrium funiforme Dixon, Proc. Roy. Soc. Queensland 53: 30. 1941. (Dixon 1942c)
Macromitrium fuscescens Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 129. 1827. (Schwägrichen 1827)
- =Macromitrium semipellucidum Dozy & Molk., Musc. Frond. Archip. Ind.: 17. 1844. (Dozy & Molkenboer 1844; Vitt et al. 1995)
- =Macromitrium calvescens Bosch & Sande Lac., Bryol. Jav. 1: 125. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995)
- =Macromitrium miquelii Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 130. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995)
- =Macromitrium glaucum Mitt., J. Linn. Soc., Bot. 10: 167. 1868. (Mitten 1868; Vitt et al. 1995)
- =Macromitrium eurymitrium Besch., Bull. Soc. Bot. France 45: 64. 1898. (Bescherelle 1898a; Vitt et al. 1995)
- =Macromitrium subsemipellucidum Broth., Bernice P. Bishop Mus. Bull. 40: 19. 1927. (Brotherus 1927; Vitt et al. 1995)
Macromitrium fuscoaureum E.B. Bartram, Contr. U.S. Natl. Herb. 26: 83. 1928. (Bartram 1928)
Macromitrium galipense Müll. Hal., Syn. Musc. Frond. 2: 643. 1851. (Müller 1851)
Macromitrium gigasporum Herzog, Biblioth. Bot. 87: 333. 1916. (Herzog 1916a; Churchill et al. 2000)
- =Macromitrium macrosporum Herzog, Biblioth. Bot. 87: 68. 1916, nom. illeg. (Herzog 1916a; Wijk et al. 1964)
Macromitrium gigasporum f. brevipes Herzog, Biblioth. Bot. 87: 69, 333. 1916. (Herzog 1916a; Churchill et al. 2009)
Macromitrium gigasporum Herzog f. gigasporum
Macromitrium giraldii Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 3: 106. 1896. (Müller 1896c; Li et al. 2024)
Macromitrium glabratum Broth., Biblioth. Bot. 88: 12. 1920. (Herzog 1921)
Macromitrium globirameum Müll. Hal., Bot. Zeitung (Berlin) 15: 779. 1857. (Müller 1857b)
Macromitrium gracile (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 1(1): 39. 1823. (Schwägrichen 1823)

Basionym: Orthotrichum gracile Hook., Musci Exot. 1: pl. 27. 1818. (Hooker 1818)

≡Leiotheca gracilis (Hook.) Brid., Bryol. Univ. 1: 730. 1826. (Bridel 1826)
- =Macromitrium mossmanianum Müll. Hal., Bot. Zeitung (Berlin) 9: 561. 1851. (Vitt 1983)
- =Macromitrium gracile var. proboscideum Dixon, New Zealand Inst. Bull. 3(6): 366. 1929. (Dixon 1929; Fife 2017)
Macromitrium greenmanii Grout, Bryologist 47: 11. 1944. (Grout 1944)
Macromitrium grossirete Müll. Hal., Hedwigia 37: 153. 1898. (Müller 1898c)
- =Macromitrium rigescens Broth. & Dixon, J. Linn. Soc., Bot. 40: 446. 1912. (Dixon 1912; Vitt 1983)
Macromitrium gymnostomum Sull. & Lesq., Char. New Musci: 3. 1859. (Sullivant & Lesquereux 1859; Guo et al. 2007b)

≡Dasymitrium gymnostomun (Sull. & Lesq.) Lindb., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 127. 1874. (Jaeger 1874)
- =Macromitrium rupestre Mitt., J. Linn. Soc., Bot. 8: 150. 1865[1864]. (Mitten 1864b; Wu et al. 2011) ≡Dasymitrium rupestre (Mitt.) Lindb., Contr. Fl. Crypt. As.: 229. 1872[1873]. (Lindberg 1872; Wu et al. 2011)
- =Macromitrium robinsonii R.S. Williams, Philipp. Mosses: 344. 1914. (Williams 1914; Guo et al. 2007b)
- =Macromitrium gymnostomum var. robustum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 62A(9): 13. 1921. (Suzuki 2016)
- =Macromitrium gymnostomum var. brevisetum Thér., Ann. Cryptog. Exot. 5: 176. 1932. (Thériot 1932)
- =Macromitrium brevituberculatum Dixon, Hong Kong Naturalist, Suppl. 2: 14. 1933. (Dixon 1933; Guo et al. 2007b)
Macromitrium hainanense S.L. Guo & S. He, Bryologist 111: 505. 2008. (Guo & He 2008b)
Macromitrium hariotii Besch. ex Müll. Hal., Flora 68: 417. 1885. (Müller 1885; He 1998)
Macromitrium harrisii Paris, Index Bryol. Suppl.: 238. 1900. (Paris 1900)

Replaced synonym: Macromitrium peraristatum Müll. Hal., Bull. Herb. Boissier 5: 560. 1897, nom. illeg. (Müller 1897b)
Macromitrium helmsii Paris, Index Bryol. Suppl.: 238. 1900. (Paris 1900)

Replaced synonym: Macromitrium appendiculatum Müll. Hal., Hedwigia 37: 156. 1898, nom. illeg. (Müller 1898c)
Macromitrium hemitrichodes Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 136. 1827. (Schwägrichen 1827)
- =Macromitrium amoenum Hornsch. ex Müll. Hal., Syn. Musc. Frond. 1: 740. 1849. (Müller 1849; McCarthy 2006)
- =Macromitrium baileyi Mitt., Trans. & Proc. Roy. Soc. Victoria 19: 63. 1882. (McCarthy 2006)
- =Macromitrium intermedium Mitt., Trans. & Proc. Roy. Soc. Victoria 19: 63. 1882. (McCarthy 2006)
Macromitrium hemitrichodes Schwägr. var. hemitrichodes
Macromitrium hemitrichodes var. sarasinii (Thér.) Thouvenot, Cryptog., Bryol. 40(16): 184. 2019. (Thouvenot 2019)

Basionym: Macromitrium sarasinii Thér., Nova Caledonia, Bot. 1(1): 25. 1914. (Thériot 1914; Thouvenot 2019)
Macromitrium herzogii Broth., Biblioth. Bot. 87: 66. 1916. (Herzog 1916a)
Macromitrium heterodictyon Dixon, Hong Kong Naturalist, Suppl. 2: 12. 1933. (Dixon 1933; Guo et al. 2007b)
Macromitrium hildebrandtii Müll. Hal., Linnaea 40: 248. 1876. (Müller 1876)
Macromitrium himalayanum Dixon, Anniv. Vol. Bot. Gard. Calcutta: 181. 1942. (Dixon 1942a)
Macromitrium holomitrioides Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 135. 1938. (Noguchi 1938; Guo et al. 2007b)
Macromitrium hornschuchii Müll. Hal., Bot. Zeitung (Berlin) 3: 526. 1845. (Müller 1845a)

Replaced synonym: Macromitrium microstomum Hornsch., Fl. Bras. 1(2): 21. 1840, nom. illeg. (Hornschuch 1840; Wijk et al. 1964)
Macromitrium hortoniae Vitt & H.P. Ramsay, J. Hattori Bot. Lab. 59: 367. 1985. (Vitt & Ramsay 1985)
Macromitrium huigrense R.S. Williams, J. Washington Acad. Sci. 17: 492A. 1927. (Williams 1927a)
Macromitrium humboldtense Thouvenot & Frank Müll., Cryptog., Bryol. 37(3): 296. 2016. (Thouvenot & Müller 2016; Thouvenot 2019)
Macromitrium hymenostomum Mont., Ann. Sci. Nat., Bot., sér. 3, 4: 120. 1845. (Montagne 1845; Noguchi & Iwatsuki 1989)

≡Macrocoma hymenostoma (Mont.) Grout, N. Amer. Fl. 15A: 42. 1946. (Grout 1946)
Macromitrium incurvifolium (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 144. 1827. (Schwägrichen 1827)

Basionym: Orthotrichum incurvifolium Hook. & Grev., Edinburgh J. Sci. 1: 117. 1824. (Hooker & Greville 1824)

≡Leiotheca incurvifolia (Hook. & Grev.) Brid., Bryol. Univ. 1: 732. 1826. (Bridel 1826)
- =Orthotrichum undulatum Hook. & Grev., Edinburgh J. Sci. 1: 117. 1824. (Hooker & Greville 1824; Reese 1997) ≡Leiotheca undulata (Hook. & Grev.) Brid., Bryol. Univ. 1: 733. 1826. (Bridel 1826; Reese 1997) ≡Macromitrium undulatum (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 137. 1827. (Schwägrichen 1827; Reese 1997)
- =Macromitrium subtile Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 140. 1827. (Schwägrichen 1827; Vitt & Ramsay 1985)
- =Macromitrium javanicum Bosch & Sande Lac., Bryol. Jav. 1: 123. 1860. (Dozy & Molkenboer 1861; Eddy 1996)
- =Macromitrium zippelii Bosch & Sande Lac., Bryol. Jav. 1: 123. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995)
- =Macromitrium subuligerum Bosch & Sande Lac., Bryol. Jav. 1: 124. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995) ≡Macromitrium subtile subsp. subuligerum (Bosch & Sande Lac.) M. Fleisch., Musci Buitenzorg 2: 439. 1904. (Vitt & Ramsay 1985)
- =Macromitrium beecheyanum Mitt., J. Linn. Soc., Bot. 10: 167. 1868. (Mitten 1868; Whittier 1976)
- =Macromitrium powellii Mitt., J. Linn. Soc., Bot. 10: 168. 1868. (Mitten 1868; Schultze-Motel 1974)
- =Macromitrium tahitense Nadeaud, Énum. Pl. Tahiti: 13. 1873. (Nadeaud 1873; Miller et al. 1978)
- =Macromitrium planocespitosum Müll. Hal., Linnaea 38: 560. 1874. (Müller 1874b; Vitt et al. 1995)
- =Macromitrium nadeaudii Besch., Bull. Soc. Bot. France 45: 64. 1898. (Bescherelle 1898a; Miller et al. 1978)
- =Macromitrium kaernbachii Broth., Fl. Schutzgeb. Südsee: 86. 1901[1900]. (Vitt et al. 1995)
- =Macromitrium leucoblastum Müll. Hal. ex Broth., Fl. Schutzgeb. Südsee: 87. 1901[1900]. (Brotherus 1901b; Vitt et al. 1995)
- =Macromitrium foxworthyi Broth., Philipp. J. Sci., C. 3: 16. 1908. (Brotherus 1908b; Vitt et al. 1995)
Macromitrium involutifolium (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 144. 1827. (Schwägrichen 1827)

Basionym: Orthotrichum involutifolium Hook. & Grev., Edinburgh J. Sci. 1: 117. 1824. (Hooker & Greville 1824)

≡Leiotheca involutifolia (Hook. & Grev.) Brid., Bryol. Univ. 1: 733. 1826. (Bridel 1826)
- =Macromitrium noumeanum Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 208. 1873. (Bescherelle 1873; Vitt & Ramsay 1985)
- =Macromitrium cumingii Müll. Hal., Flora 82: 452. 1896. (Müller 1896a; Whittier 1976) ≡Micromitrium cumingii (Müll. Hal.) Paris, Index Bryol. (ed. 2) 3: 241. 1905. (Paris 1904-1906; Whittier 1976)
- =Macromitrium malacoblastum Müll. Hal., Hedwigia 37: 150. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium daemelii Müll. Hal., Hedwigia 37: 153. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium incurvulum Müll. Hal., Hedwigia 37: 155. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium involutifolium (Hook. & Grev.) Schwägr. subsp. involutifolium
Macromitrium involutifolium subsp. ptychomitrioides (Besch.) Vitt & H.P. Ramsay, J. Hattori Bot. Lab. 59: 378. 1985. (Vitt & Ramsay 1985; Thouvenot 2019)

Basionym: Macromitrium ptychomitrioides Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 208. 1873. (Bescherelle 1873; Thouvenot 2019)
- =Macromitrium carinatum Mitt., Trans. & Proc. Roy. Soc. Victoria 19: 64. 1882. (Vitt & Ramsay 1985)
- =Macromitrium viridissimum Mitt., Trans. & Proc. Roy. Soc. Victoria 19: 64. 1882. (Vitt & Ramsay 1985)
- =Macromitrium platyphyllaceum Müll. Hal., Hedwigia 37: 154. 1898. (Müller 1898c; Vitt & Ramsay 1985)
- =Macromitrium plicatum Thér., Bull. Acad. Int. Géogr. Bot. 17: 307. 1907. (Thériot 1907; Thouvenot 2019)
- =Macromitrium plicatum var. aristatum Thér., Bull. Acad. Int. Géogr. Bot. 20: 99. 1910. (Thériot 1910a; Thouvenot 2019)
- =Macromitrium plicatum var. obtusifolium Thér., Diagn. Esp. Var. Nouv. Mouss. 8: 4. 1910. (Thériot 1910b; Thouvenot 2019)
- =Macromitrium suberosulum E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 15(27): 336. 1940. (Bartram 1940; Vitt & Ramsay 1985)
Macromitrium japonicum Dozy & Molk., Musc. Frond. Archip. Ind.: 16. 1844. (Dozy & Molkenboer 1844)

≡Dasymitrium japonicum (Dozy & Molk.) Lindb., Index Bryol. (ed. 2) 5: 149. 1906. (Paris 1904-1906)
- =Macromitrium insularum Sull. & Lesq., Char. New Musci: 3. 1859. (Sullivant & Lesquereux 1859; Wu et al. 2011)
- =Macromitrium spathulare Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 50. 1859. (Mitten 1859b; Wijk et al. 1964)
- =Dasymitrium incurvum Lindb., J. Bot. 2: 385. 1864. (Noguchi & Iwatsuki 1989) ≡Macromitrium incurvum (Lindb.) Mitt., Trans. Linn. Soc. London, Bot. 3: 163. 1891. (Mitten 1891; Noguchi & Iwatsuki 1989)
- =Dasymitrium makinoi Broth., Hedwigia 38: 215. 1899. (Brotherus 1899a; Li et al. 2024) ≡Macromitrium makinoi (Broth.) Paris, Index Bryol. Suppl.: 239. 1900. (Li et al. 2024) ≡Macromitrium japonicum var. makinoi (Broth.) Nog., Ill. Moss Fl. Japan 3: 606. 1989. (Noguchi & Iwatsuki 1989; Li et al. 2024)
- =Macromitrium bathyodontum Cardot, Beih. Bot. Centralbl. 17: 13. 1904. (Cardot 1904; Guo et al. 2007a)
- =Macromitrium nakanishikii Broth., Icon. Pl. Koisik. 4: 45. 1919. (Noguchi & Iwatsuki 1989)
- =Macromitrium polygonostomum Dixon & P. de la Varde, Arch. Bot. Bull. Mens. 1(8–9): 181. 1927. (Dixon & Potier de la Varde 1927; Li et al. 2024)
- =Macromitrium insulanum Podp., Spisy Přír. Fak. Masarykovy Univ. 116: 17. 1929. (Podpěra 1929; Ignatov & Afonina 1992)
- =Macromitrium dickasonii E.B. Bartram, Farlowia 1: 178. 1943. (Bartram 1943; Li et al. 2024)
Macromitrium kinabaluense J. Froehl., Rev. Bryol. Lichénol. 31: 92. 1962. (Froehlich 1962)
Macromitrium krausei Lorentz, Bot. Zeitung (Berlin) 24: 187. 1866. (Lorentz 1866; He 1998)
Macromitrium laevigatum Thér., Diagn. Esp. Var. Nouv. Mouss. 8: 5. 1910. (Thériot 1910b)
Macromitrium lanceolatum Broth., Reise Ostafr., Syst. Arbeit. 3: 54. 1908. (Brotherus 1908a)
Macromitrium laosianum Paris & Broth., Rev. Bryol. 35: 50. 1908. (Paris 1908b)
Macromitrium larrainii Thouvenot & K.T. Yong, Cryptog., Bryol. 36(4): 344. 2015. (Thouvenot & Yong 2015; Thouvenot 2019)
Macromitrium lauterbachii Broth. ex M. Fleisch., Musci Buitenzorg 2: 420. 1904. (Fleischer 1904)
Macromitrium lebomboense van Rooy, J. Bryol. 16: 209. 1990. (van Rooy 1990)
Macromitrium leprieurii Mont., Ann. Sci. Nat., Bot., sér. 2, 14: 347. 1840. (Montagne 1840)
- =Macromitrium dussii Broth., Symb. Antill. 3: 424. 1903. (Allen 2002)
- =Macromitrium crumianum Steere & W.R. Buck, Brittonia 31: 395. 1979. (Steere & Buck 1979; Allen 2002)
Macromitrium leratii Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 48(15): 12. 1906. (Brotherus 1906b)
- =Macromitrium salakanum var. majus Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 210. 1873. (Bescherelle 1873; Thouvenot 2019)
- =Macromitrium leratii var. erectifolium Thér., Rev. Bryol. 48: 16. 1921. (Thériot 1921c; Thouvenot 2019)
Macromitrium ligulare Mitt., J. Proc. Linn. Soc., Bot. 4: 78. 1859. (Mitten 1859a)
- =Macromitrium luehmannianum Müll. Hal., Hedwigia 37: 152. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium ligulifolium Broth., Öfvers. Finska Vetensk.-Soc. Förh. 40: 170. 1898. (Brotherus 1898)
- =Macromitrium ligulatulum Müll. Hal., Hedwigia 37: 151. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium woollsianum Müll. Hal., Hedwigia 37: 156. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium woollsianum var. chlorophyllosum Müll. Hal., Hedwigia 37: 156. 1898, nom. dub. (Müller 1898c; Streimann & Klazenga 2002)
- =Macromitrium cucullatum Thér., Bull. Acad. Int. Géogr. Bot. 17(217): 307. 1907. (Thériot 1907; Vitt & Ramsay 1985)
- =Macromitrium brevipilosum Thér., Bull. Acad. Int. Géogr. Bot. 18: 253. 1908. (Thériot 1908; Vitt & Ramsay 1985)
- =Macromitrium perminutum Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 15. 1909. (Vitt & Ramsay 1985)
- =Macromitrium rapaense E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 15(27): 335. 1940. (Bartram 1940; Vitt & Ramsay 1985)
Macromitrium liliputanum Müll. Hal., Flora 73: 483. 1890. (Müller 1890; O'Shea 2006)
Macromitrium lomasense H. Rob., Phytologia 21: 392. 1971. (Robinson 1971)
Macromitrium lonchomitrioides Müll. Hal., Hedwigia 37: 155. 1898. (Müller 1898c)
Macromitrium longicaule Müll. Hal., Syn. Musc. Frond. 1: 742. 1849. (Müller 1849)
- =Macromitrium brachystele Dixon, J. Bot. 61(Suppl.): 62. 1923. (Eddy 1996)
Macromitrium longipapillosum D.D. Li, J. Yu, T. Cao & S.L. Guo, Nordic J. Bot. 35(6): 711. 2017. (Li et al. 2017)
Macromitrium longipes (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 1(2): 147. 1824. (Schwägrichen 1824)

Basionym: Orthotrichum longipes Hook., Musci Exot. 1: pl. 24. 1818. (Hooker 1818)
- =Macromitrium lonchomitrium Müll. Hal., Hedwigia 37: 148. 1898. (Müller 1898c; Vitt 1983)
- =Macromitrium pseudohemitrichodes Müll. Hal., Hedwigia 37: 150. 1898. (Müller 1898c; Vitt 1983)
Macromitrium longipilum A. Braun ex Müll. Hal., Syn. Musc. Frond. 2: 642. 1851. (Müller 1851)
Macromitrium longirostre (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 1(1): 38. 1823. (Schwägrichen 1823)

Basionym: Orthotrichum longirostre Hook., Musci Exot. 1: pl. 25. 1818. (Hooker 1818)
- =Orthotrichum acutifolium Hook. & Grev., Edinburgh J. Sci. 1: 118. 1824. (Hooker & Greville 1824; McCarthy 2006) ≡Macromitrium acutifolium (Hook. & Grev.) Brid., Bryol. Univ. 1: 735. 1826. (Bridel 1826; McCarthy 2006) ≡Macromitrium longirostre var. acutifolium (Hook. & Grev.) Wilson, Fl. Nov.-Zel. 2: 78. 1854.
- =Macromitrium pertorquescens Müll. Hal., Hedwigia 37: 148. 1898. (Müller 1898c; Wijk et al. 1964)
- =Macromitrium pertorquescens var. torquatulum Müll. Hal., Hedwigia 37: 148. 1898. (Müller 1898c) ≡Macromitrium torquatulum (Müll. Hal.) Müll. Hal. & Broth., Abh. Naturwiss. Vereins Bremen 16: 501. 1900. (Müller & Brotherus 1900; McCarthy 2006)
- =Macromitrium rodwayi Dixon, Pap. & Proc. Roy. Soc. Tasmania 1921: 174. 1922. (McCarthy 2006)
Macromitrium longirostre (Hook.) Schwägr. var. longirostre
Macromitrium longirostre var. ramsayae (Vitt) Fife, Fl. New Zealand - Mosses 31: 24. 2017. (Fife 2017)

Basionym: Macromitrium ramsayae Vitt, J. Hattori Bot. Lab. 54: 14. 1983. (Vitt 1983; Fife 2017)
Macromitrium lorifolium Paris & Broth., Rev. Bryol. 34: 30. 1907. (Paris 1907a)
Macromitrium macrocomoides Müll. Hal., Hedwigia 37: 149. 1898. (Müller 1898c)
Macromitrium macrosporum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 40: 168. 1898. (Brotherus 1898)
- =Macromitrium goniostomum Broth., Philipp. J. Sci., C. 5: 145. 1910. (Brotherus 1910a; Vitt et al. 1995)
- =Macromitrium aspericuspis Dixon, Ann. Bryol. 12: 51. 1939. (Dixon 1939; Vitt et al. 1995)
- =Macromitrium hamatum E.B. Bartram, Bryologist 48: 117. 1945, nom. illeg. (Bartram 1945; Vitt et al. 1995)
- =Macromitrium morobense E.B. Bartram, Bryologist 48: 117. 1945. (Bartram 1945; Vitt et al. 1995)
Macromitrium macrothele Müll. Hal., Bot. Zeitung (Berlin) 6: 766. 1848. (Müller 1848a)
Macromitrium maolanense Ze Y. Zhang, D.D. Li, J. Yu & S.L. Guo, J. Bryol. 41(3): 265. 2019. (Zhang et al. 2019)
Macromitrium marginatum Dixon, Ann. Bryol. 7: 25. 1934. (Dixon 1934b)
Macromitrium masafuerae Broth., Nat. Hist. Juan Fernandez 2: 423. 1924. (Brotherus 1924c)
Macromitrium mcphersonii B.H. Allen, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 599. 2002. (Allen 2002)
Macromitrium megalocladon M. Fleisch., Hedwigia 50: 282. 1911. (Fleischer 1911)
- =Macromitrium altipapillosum E.B. Bartram, Lloydia 5: 272. 1942. (Bartram 1942a; Vitt et al. 1995)
- =Macromitrium submegalocladum Dixon, Farlowia 1: 31. 1943. (Dixon 1943; Vitt et al. 1995)
Macromitrium melinii Roiv., Ann. Bot. Soc. Zool.-Bot. Fenn. "Vanamo" 6(8): 16. 1936. (Roivainen 1936)
Macromitrium menziesii Müll. Hal., Bot. Zeitung (Berlin) 20: 361. 1862. (Müller 1862)
Macromitrium microcarpum Müll. Hal., Syn. Musc. Frond. 1: 727. 1849. (Müller 1849)
Macromitrium microstomum (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 130. 1827. (Schwägrichen 1827)

Basionym: Orthotrichum microstomum Hook. & Grev., Edinburgh J. Sci. 1: 114. 1824. (Hooker & Greville 1824)

≡Leiotheca microstoma (Hook. & Grev.) Brid., Bryol. Univ. 1: 729. 1826. (Bridel 1826)
- =Macromitrium reinwardtii Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 69. 1826. (Schwägrichen 1826; Eddy 1996) ≡Leiotheca reinwardtii (Schwägr.) Brid., Bryol. Univ. 1: 796. 1827. (Bridel 1827a; Eddy 1996)
- =Macromitrium nitidum Hook. & Wilson, London J. Bot. 3: 156. 1844. (Wilbraham 2007)
- =Macromitrium filicaule Müll. Hal., Syn. Musc. Frond. 1: 745. 1849. (Müller 1849; Yu et al. 2018a)
- =Macromitrium macropelma Müll. Hal., Bot. Zeitung (Berlin) 14: 420. 1856. (Müller 1856; Wilbraham 2007)
- =Macromitrium fasciculare Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 51. 1859. (Mitten 1859b; Wilbraham & Ellis 2010)
- =Macromitrium seemannii Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 51. 1859. (Mitten 1859b; Wilbraham 2007)
- =Macromitrium owahiense Müll. Hal., Bot. Zeitung (Berlin) 22: 359. 1864. (Vitt 1983)
- =Macromitrium scottiae Müll. Hal., Linnaea 35: 618. 1868. (McCarthy 2006)
- =Macromitrium stratosum Mitt., J. Linn. Soc., Bot. 12: 199. 1869. (Mitten 1869; Allen 2002)
- =Macromitrium saxatile Mitt., J. Linn. Soc., Bot. 12: 200. 1869. (Mitten 1869; Robinson 1975)
- =Macromitrium adstrictum Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 29(4): 19. 1872. (Ångström 1872; Vitt 1983)
- =Macromitrium pacificum Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 209. 1873. (Bescherelle 1873; Vitt & Ramsay 1985)
- =Macromitrium linearifolium Müll. Hal., Linnaea 37: 154. 1873[1872], nom. illeg. (McCarthy 2006)
- =Macromitrium subnitidum Müll. Hal., Linnaea 42: 488. 1879. (Müller 1879b; Yu et al. 2018a)
- =Macromitrium stolonigerum Müll. Hal., Linnaea 42: 489. 1879. (Müller 1879b; Allen 2002)
- =Dasymitrium borbonicum Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 355. 1880. (Bescherelle 1879; Wilbraham & Ellis 2010) ≡Macromitrium borbonicum (Besch.) Broth., Nat. Pflanzenfam. I(3): 481. 1903. (Wilbraham & Ellis 2010)
- =Macromitrium prolixum Bosw., J. Bot. 30: 97. 1892. (Boswell 1892; McCarthy 2006)
- =Macromitrium weymouthii Broth., Öfvers. Finska Vetensk.-Soc. Förh. 37: 161. 1895. (Brotherus 1895c; McCarthy 2006)
- =Macromitrium tasmanicum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 37: 162. 1895. (Brotherus 1895c; McCarthy 2006)
- =Macromitrium canum Müll. Hal., Flora 82: 454. 1896. (Müller 1896a; Eddy 1996)
- =Macromitrium cacuminicola Müll. Hal., Bull. Herb. Boissier 5: 559. 1897. (Müller 1897b; Allen 2002)
- =Macromitrium flaccidisetum Müll. Hal., Hedwigia 37: 147. 1898. (Müller 1898c; Vitt 1983)
- =Macromitrium fasciculare var. javense M. Fleisch., Musci Buitenzorg 2: 432. 1904. (Wilbraham & Ellis 2010)
- =Macromitrium pacificum var. brevisetum Thér., Bull. Acad. Int. Géogr. Bot. 20: 99. 1910. (Thériot 1910a; Thouvenot 2019)
- =Macromitrium pacificum var. longisetum Thér., Bull. Acad. Int. Géogr. Bot. 20: 99. 1910. (Thériot 1910a; Thouvenot 2019)
- =Macromitrium acunae Thér., Mem. Soc. Cub. Hist. Nat. "Felipe Poey" 14: 353. 1940. (Thériot 1940; Allen 2002)
- =Macromitrium fasciculare var. angustifolium P. de la Varde, Rev. Bryol. Lichénol. 19: 152. 1950. (Potier de la Varde 1950; Wilbraham & Ellis 2010)
Macromitrium minutum Mitt., J. Linn. Soc., Bot. 13: 303. 1873. (Mitten 1873b)
- =Macromitrium hispidulum Thwaites & Mitt., J. Linn. Soc., Bot. 13: 302. 1873. (Mitten 1873b; Wijk et al. 1964)
Macromitrium mittenianum Steere, Bryologist 51: 115. 1948. (Steere 1948)

Replaced synonym: Zygodon crenulatus Mitt., J. Linn. Soc., Bot. 12: 238. 1869. (Mitten 1869)
Macromitrium moorcroftii (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 67. 1826. (Schwägrichen 1826)

Basionym: Orthotrichum moorcroftii Hook. & Grev., Edinburgh J. Sci. 1: 116. 1824. (Hooker & Greville 1824)

≡Leiotheca moorcroftii (Hook. & Grev.) Brid., Bryol. Univ. 1: 727. 1826. (Bridel 1826) ≡Orthodon moorcroftii (Hook. & Grev.) Griff., Icon. Pl. Asiat. 2: pl. 76. 1849.
Macromitrium mosenii Broth., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 3(3): 24. 1895. (Brotherus 1895a)
Macromitrium muellerianum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 51. 1859. (Mitten 1859b)
Macromitrium nanothecium Müll. Hal. ex Cardot, Hist. Phys. Madagascar, Mousses: 237. 1915. (Renauld & Cardot 1915)
- =Macromitrium ancistrophyllum Cardot, Hist. Phys. Madagascar, Mousses: 247. 1915. (Renauld & Cardot 1915; Wilbraham 2018)
Macromitrium nepalense (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 134. 1827. (Schwägrichen 1827)

Basionym: Orthotrichum nepalense Hook. & Grev., Edinburgh J. Sci. 1: 117. 1824. (Hooker & Greville 1824)

≡Leiotheca nepalensis (Hook. & Grev.) Brid., Bryol. Univ. 1: 732. 1826. (Bridel 1826)
- =Orthotrichum assamicum Griff., Calcutta J. Nat. Hist. 2: 485. 1842. (Griffith 1842; Gangulee 1976) ≡Macromitrium assamicum (Griff.) Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 50. 1859. (Mitten 1859b; Gangulee 1976)
- =Macromitrium longibrachteatum Dixon, Ann. Bryol. 9: 63. 1937. (Guo & He 2014)
- =Macromitrium incrustatifolium H. Rob., Bryologist 71: 90. 1968. (Robinson 1968; Guo & He 2014)
Macromitrium nietneri Müll. Hal., Linnaea 36: 39. 1868. (Müller 1870)
Macromitrium nigricans Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 53. 1859. (Mitten 1859b)
Macromitrium noguchianum W. Schultze-Motel, Taxon 11: 180. 1962. (Schultze-Motel 1962)
- =Macromitrium papuanum Nog., J. Hattori Bot. Lab. 10: 14. 1953, nom. illeg. (Noguchi 1953)
Macromitrium norrisianum Vitt, Acta Bot. Fenn. 154: 53. 1995. (Vitt et al. 1995)
Macromitrium novorecurvulum B.C. Tan & B.C. Ho, J. Hattori Bot. Lab. 98: 228. 2005. (Gradstein et al. 2005)

Replaced synonym: Macromitrium recurvulum Cardot, Rev. Bryol. 28: 113. 1901, nom. illeg. (Cardot 1901)
Macromitrium nubigenum Herzog, Biblioth. Bot. 87: 67. 1916. (Herzog 1916a)
Macromitrium oblongum (Taylor) Spruce, Cat. Musc.: 2. 1867. (Spruce 1867)

Basionym: Schlotheimia oblonga Taylor, London J. Bot. 5: 46. 1846. (Taylor 1846)
Macromitrium ochraceum (Dozy & Molk.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b)

Basionym: Schlotheimia ochracea Dozy & Molk., Musc. Frond. Archip. Ind.: 19. 1844. (Dozy & Molkenboer 1844)
- =Macromitrium commutatum Hampe, Linnaea 20: 72. 1847, nom. illeg.
- =Trichostomum neesii Sande Lac., Bryol. Jav. 2: 226. 1870. (Dozy & Molkenboer 1870; Wijk et al. 1969)
- =Macromitrium mindanaense Broth., Philipp. J. Sci., C. 3: 15. 1908. (Brotherus 1908b; Tan & Iwatsuki 1991)
- =Macromitrium hallieri M. Fleisch. ex Broth., Nat. Pflanzenfam., ed. 2, 11: 35. 1925. (Brotherus 1925; Vitt et al. 1995)
- =Macromitrium rubricuspis Broth., Mitt. Inst. Allg. Bot. Hamburg 7(2): 123. 1928. (Brotherus 1928; Eddy 1996)
- =Macromitrium ochraceoides Dixon, J. Linn. Soc., Bot. 50: 89. 1935. (Dixon 1935a; Eddy 1996)
Macromitrium okabei Sakurai, Bot. Mag. (Tokyo) 57: 250. 1943. (Sakurai 1943)
Macromitrium onraedtii Bizot, Rev. Bryol. Lichénol. 40(2): 123. 1974. (Bizot 1974)
Macromitrium orthophyllum Mitt., J. Proc. Linn. Soc., Bot. 4: 79. 1859. (Mitten 1859a)
Macromitrium orthostichum Nees ex Schwägr., Sp. Musc. Frond., Suppl. 4: 316. 1842. (Schwägrichen 1842)
- =Macromitrium appressifolium Mitt., J. Linn. Soc., Bot. 13: 302. 1873. (Mitten 1873b; Vitt et al. 1995) ≡Macromitrium orthostichum subsp. appressifolium (Mitt.) M. Fleisch., Musci Buitenzorg 2: 413. 1904.
- =Macromitrium seminudum Thwaites & Mitt., J. Linn. Soc., Bot. 13: 303. 1873. (Mitten 1873b; Vitt et al. 1995) ≡Macromitrium orthostichum subsp. seminudum (Thwaites & Mitt.) M. Fleisch., Musci Buitenzorg 2: 412. 1904.
- =Macromitrium scleropodium Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 357. 1880. (Bescherelle 1879; Wilbraham 2007)
- =Macromitrium fragilifolium Dixon, Ann. Bryol. 5: 28. 1932. (Dixon 1932a; Eddy 1996)
- =Macromitrium orthostichum var. burgeffii Herzog, Ann. Bryol. 5: 70. 1932. (Herzog 1932)
Macromitrium orthostichum subsp. micropoma M. Fleisch., Musci Buitenzorg 2: 409, 414. 1904. (Fleischer 1904; He & Nguyen 2012)
Macromitrium orthostichum Nees ex Schwägr. subsp. orthostichum
Macromitrium orthostichum Nees ex Schwägr. var. orthostichum
Macromitrium orthostichum var. siccosquarrosum Herzog, Ann. Bryol. 5: 70. 1932. (Herzog 1932; Tan & Iwatsuki 1991)
Macromitrium ousiense Broth. & Paris, Rev. Bryol. 37: 2. 1910. (Paris 1910)
Macromitrium ovale Mitt., J. Linn. Soc., Bot. 12: 209. 1869. (Mitten 1869)
Macromitrium pallidum (P. Beauv.) Wijk & Margad., Taxon 9: 190. 1960. (Wijk & Margadant 1960a)

Basionym: Orthotrichum pallidum P. Beauv., Prodr. Aethéogam.: 81. 1805. (Palisot de Beauvois 1805)
- =Orthotrichum breve P. Beauv., Prodr. Aethéogam.: 80. 1805. (Wijk et al. 1964)
- =Trichostomum arbustorum Brid., Muscol. Recent. Suppl. 1: 241. 1806. (Bridel 1806–1817; Wijk et al. 1969)
- =Schlotheimia acicularis Brid., Muscol. Recent. Suppl. 2: 21. 1812, nom. illeg. (Bridel 1812) ≡Macromitrium aciculare Brid., Muscol. Recent. Suppl. 4: 132. 1819[1818], nom. illeg. (Bridel 1819) ≡Orthotrichum aciculare Hook. & Grev., Edinburgh J. Sci. 1: 114. 1824, nom. illeg. (Hooker & Greville 1824) ≡Leiotheca acicularis Brid., Bryol. Univ. 1: 730. 1826, nom. illeg. (Bridel 1826)
- =Lasia acicularis Spreng., Nomencl. Bot. 2: 231. 1824, nom. illeg. (Steudel 1824)
- =Leiotheca filiformis Brid., Bryol. Univ. 1: 727. 1826, nom. illeg. (Bridel 1826)
- =Schlotheimia krauseana Hampe & Lorentz, Bot. Zeitung (Berlin) 27: 436. 1869, nom. illeg.
- =Macromitrium voeltzkowii Broth., Reise Ostafr., Syst. Arbeit. 3: 55. 1908. (Brotherus 1908a; Wilbraham & Ellis 2010)
Macromitrium pandurifolium Thouvenot, Cryptog., Bryol. 39(4): 444. 2018. (Thouvenot 2018)
Macromitrium papillisetum Dixon, J. Linn. Soc., Bot. 50: 89. 1935. (Dixon 1935a)
Macromitrium paraphysatum Sehnem, Pesquisas, Bot. 32: 19. 1978, nom. illeg. (Sehnem 1978; Valente et al. 2020)
Macromitrium paridis Besch., Rev. Bryol. 25: 90. 1898. (Bescherelle 1898c)

Replaced synonym: Macromitrium cacuminicola Besch., Bull. Soc. Bot. France 45: 63. 1898, nom. illeg. (Bescherelle 1898a; Miller et al. 1978)
Macromitrium parvifolium Dixon, J. Bot. 80: 6. 1942. (Dixon 1942b)
- =Macromitrium daymannianum E.B. Bartram, Brittonia 9: 43. 1957. (Bartram 1957; Vitt et al. 1995)
- =Macromitrium brevirameum E.B. Bartram, Rev. Bryol. Lichénol. 30: 195. 1962. (Bartram 1961; Vitt et al. 1995)
- =Macromitrium brevirameum E.B. Bartram, Contr. U.S. Natl. Herb. 37: 54. 1965, nom. illeg. (Bartram 1965; Vitt et al. 1995)
Macromitrium parvirete E.B. Bartram, Bryologist 47: 16. 1944. (Grout 1944)
Macromitrium patens Wilson, Bot. Voy. Herald: 244. 1854. (Wilson 1857)
Macromitrium peraristatum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 35: 45. 1893. (Brotherus 1893)
Macromitrium perdensifolium Dixon, J. Linn. Soc., Bot. 50: 90. 1935. (Dixon 1935a)
Macromitrium perichaetiale (Hook. & Grev.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b)

Basionym: Orthotrichum perichaetiale Hook. & Grev., Edinburgh J. Sci. 1: 127. 1824. (Hooker & Greville 1824)

≡Leiotheca perichaetialis (Hook. & Grev.) Brid., Bryol. Univ. 1: 731. 1826. (Bridel 1826) ≡Schlotheimia perichaetialis (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 56. 1826. (Schwägrichen 1826)
- =Macromitrium truncatum Müll. Hal., Linnaea 17: 383. 1843. (Müller 1843; Wijk et al. 1964)
Macromitrium perpusillum Müll. Hal., Linnaea 38: 640. 1874. (Müller 1874d)
Macromitrium perreflexum Steere, Brittonia 34: 437. 1982. (Steere 1982)
Macromitrium pertriste Müll. Hal., Hedwigia 37: 149. 1898. (Müller 1898c)
Macromitrium petelotii Tixier, Rev. Bryol. Lichénol. 34: 140. 1966. (Tixier 1966)
Macromitrium picobonitum B.H. Allen, Novon 8: 118. 1998. (Allen 1998)
Macromitrium pilicalyx Dixon ex E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 19: 225. 1948. (Bartram 1948)
Macromitrium piliferum Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 65. 1826. (Schwägrichen 1826)

≡Orthotrichum piliferum (Schwägr.) Arn., Mém. Soc. Linn. Paris 5(3): 235. 1826.
- =Orthotrichum lanceolatum Arn., Disp. Méth. Mousses: 16. 1825. (Jaeger 1874)
- =Ulota pilifera Nees, Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur. 19(Suppl. 1): 477. 1843. (Jaeger 1874)
- =Macromitrium plebejum Müll. Hal., Flora 82: 451. 1896. (Müller 1896a; Wijk et al. 1964)
- =Macromitrium subpiliferum Müll. Hal., Flora 82: 453. 1896. (Müller 1896a; Miller et al. 1978)
Macromitrium pilosum Thér., Bull. Acad. Int. Géogr. Bot. 17: 308. 1907. (Thériot 1907)
- =Macromitrium subsessile Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 17. 1909. (Thouvenot 2019)
- =Macromitrium pilosum var. brevifolium Thér., Bull. Acad. Int. Géogr. Bot. 20: 99. 1910. (Thériot 1910a; Thouvenot 2019)
- =Macromitrium koghiense Thér., Diagn. Esp. Var. Nouv. Mouss. 8: 4. 1910. (Thériot 1910b; Thouvenot 2019)
- =Macromitrium koghiense var. spiricaule Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 53A(11): 16. 1911. (Thouvenot 2019)
Macromitrium pinnulatum Herzog, Biblioth. Bot. 87: 65. 1916. (Herzog 1916a)
Macromitrium prolongatum Mitt., Trans. Linn. Soc. London, Bot. 3: 162. 1891. (Mitten 1891)
- =Macromitrium prolongatum var. brevipes Cardot, Bull. Soc. Bot. Genève 1: 122. 1909. (Noguchi & Iwatsuki 1989)
- =Macromitrium brachycladulum Broth. & Paris, Nat. Pflanzenfam. I(3): 1202. 1909. (Guo et al. 2007a)
Macromitrium prorepens (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 62. 1826. (Schwägrichen 1826)

Basionym: Orthotrichum prorepens Hook., Musci Exot. 2: 120. 1819. (Hooker 1820)

≡Leiotheca prorepens (Hook.) Brid., Bryol. Univ. 1: 305, 727. 1826. (Bridel 1826)
- =Macromitrium submucronifolium Müll. Hal. & Hampe, Linnaea 26: 499. 1853[1855]. (Fife 2017)
- =Macromitrium erosulum Mitt., J. Proc. Linn. Soc., Bot. 4: 78. 1859. (Mitten 1859a; Fife 1995)
- =Macromitrium coarctatulum Müll. Hal., Hedwigia 37: 153. 1898. (Müller 1898c; Vitt 1983)
- =Macromitrium papillifolium Müll. Hal., Hedwigia 37: 154. 1898. (Müller 1898c; Vitt 1983)
- =Macromitrium oocarpum Müll. Hal., Hedwigia 37: 157. 1898. (Müller 1898c; Vitt 1983)
- =Macromitrium petriei Dixon, Bull. Torrey Bot. Club 42: 101. 1915. (Dixon 1915a; Vitt 1983)
- =Macromitrium prorepens var. aristata Allison, Trans. Roy. Soc. New Zealand 88: 10. 1960. (Allison 1960; Fife 2017)
Macromitrium proximum Thér., Recueil Publ. Soc. Havraise Études Diverses 92: 140. 1925. (Thériot 1925)
Macromitrium pseudofimbriatum Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 6: 144. 1875. (Hampe 1875)
- =Macromitrium doeringianum Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 96. 1879. (Valente et al. 2020)
- =Macromitrium podocarpi var. falcifolium Müll. Hal., Bull. Herb. Boissier 6: 96. 1898. (Müller 1898a; Valente et al. 2020)
- =Macromitrium portoricense R.S. Williams, Bryologist 32: 69. 1929. (Williams 1929; Churchill & Linares Castillo 1995)
Macromitrium pseudoramentosum Herzog, Hedwigia 66: 346. 1926. (Herzog 1926)
Macromitrium pseudoserrulatum E.B. Bartram, Rev. Bryol. Lichénol. 33: 326. 1964[1965]. (Bartram 1964-65)
Macromitrium pulchrum Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 210. 1873. (Bescherelle 1873)
- =Macromitrium pulchrum var. aristatum Thér., Rev. Bryol. 48: 16. 1921. (Thériot 1921c; Thouvenot 2019)
- =Macromitrium pulchrum var. densirete Thér., Rev. Bryol. 48: 16. 1921. (Thériot 1921c; Thouvenot 2019)
Macromitrium pulchrum var. neocaledonicum (Besch.) Thouvenot, Cryptog., Bryol. 40(16): 203. 2019. (Thouvenot 2019)

Basionym: Macromitrium neocaledonicum Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 211. 1873. (Bescherelle 1873; Thouvenot 2019)
Macromitrium pulchrum Besch. var. pulchrum
Macromitrium pullenii Vitt, Acta Bot. Fenn. 15: 63. 1995. (Vitt et al. 1995)
Macromitrium pyriforme Müll. Hal., Syn. Musc. Frond. 2: 645. 1851. (Müller 1851)
Macromitrium raphidophyllum Müll. Hal., Linnaea 42: 487. 1879. (Müller 1879b)
Macromitrium refractifolium Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 123. 1897. (Müller 1897f)
Macromitrium regnellii Hampe, Syn. Musc. Frond. 1: 738. 1849. (Müller 1849)
- =Macromitrium contextum Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 331. 1865. (Hampe 1865; Valente et al. 2020)
- =Macromitrium sumichrastii Duby, Mém. Soc. Phys. Genève 19: 297. 1868. (Duby 1868; Allen 2002)
- =Macromitrium reflexifolium Mitt., J. Linn. Soc., Bot. 12: 211. 1869. (Mitten 1869; Allen 2002)
Macromitrium renauldii Thér., Bull. Acad. Int. Géogr. Bot. 17: 307. 1907. (Thériot 1907)
- =Macromitrium gracilipes Cardot, Bull. Herb. Boissier, sér. 2, 8: 168. 1908. (Cardot 1908a; Thouvenot 2019)
- =Macromitrium leratioides Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 15. 1909. (Thouvenot 2019)
Macromitrium repandum Müll. Hal., Bot. Jahrb. Syst. 5: 87. 1883. (Müller 1883a)
- =Macromitrium whiteleggei Broth. & Geh., Öfvers. Finska Vetensk.-Soc. Förh. 37: 161. 1895. (Brotherus 1895c; McCarthy 2006)
- =Macromitrium pallidovirens Müll. Hal., Hedwigia 37: 144. 1898. (Müller 1898c; McCarthy 2006)
- =Macromitrium pugionifolium Müll. Hal., Hedwigia 37: 145. 1898. (Müller 1898c; McCarthy 2006)
Macromitrium retusulum Müll. Hal., Linnaea 42: 486. 1879. (Müller 1879b)
Macromitrium retusum Hook. f. & Wilson, Fl. Nov.-Zel. 2: 79. 1854. (Hooker 1855)

≡Macromitrium gracile var. retusum (Hook. f. & Wilson) Sainsbury, Trans. & Proc. Roy. Soc. New Zealand 75: 178. 1945.
- =Macromitrium caducipilum Lindb., Öfvers. Kongl. Vetensk.-Akad. Förh. 21: 605. 1864[1865]. (Lindberg 1864; Vitt 1983) ≡Macromitrium longirostre var. caducipilum (Lindb.) W. Martin & Sainsbury, Rev. Bryol. Lichénol. 21: 219. 1952. (Sainsbury 1952)
- =Macromitrium aristatum Mitt., Handb. N. Zeal. Fl.: 432. 1867. (Hooker 1867; Vitt 1983)
Macromitrium rhacomitrioides Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 138. 1938. (Noguchi 1938)
Macromitrium rimbachii Herzog, Memoranda Soc. Fauna Fl. Fenn. 27: 109. 1952. (Herzog 1952a)
Macromitrium rufipilum Cardot, Bull. Herb. Boissier, sér. 2, 8: 169. 1908. (Cardot 1908a)
Macromitrium ruginosum Besch., Bull. Soc. Bot. France 45: 63. 1898. (Bescherelle 1898a)
Macromitrium rugulosum Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 12. 1876. (Ångström 1876)
Macromitrium rusbyanum E. Britton, Bull. Torrey Bot. Club 23: 482. 1896. (Britton 1896)

≡Teichodontium rusbyanum (E. Britton) Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 119. 1897. (Müller 1897f)
Macromitrium saddleanum Besch. ex Müll. Hal., Flora 68: 417. 1885. (Müller 1885)
Macromitrium saddleanum var. piliferum Herzog, Rev. Bryol. Lichénol. 23: 81. 1954. (Herzog 1954; Müller 2009)
Macromitrium saddleanum Besch. ex Müll. Hal. var. saddleanum
Macromitrium salakanum Müll. Hal., Syn. Musc. Frond. 2: 646. 1851. (Müller 1851)
- =Macromitrium pungens Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 122. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995) ≡Macromitrium salakanum subsp. pungens (Mitt. ex Bosch & Sande Lac.) M. Fleisch., Musci Buitenzorg 2: 445. 1904.
- =Macromitrium humile Bosch & Sande Lac., Bryol. Jav. 1: 128. 1860. (Dozy & Molkenboer 1861; Vitt et al. 1995)
- =Macromitrium reflexifolium Sande Lac., Sp. Nov. Musc. Ind.: 8. 1872, nom. illeg. (Sande Lacoste 1872; Vitt et al. 1995) ≡Macromitrium celebense Paris, Index Bryol.: 773. 1897. (Eddy 1996) ≡Macromitrium salakanum subsp. celebense (Paris) M. Fleisch., Musci Buitenzorg 2: 446. 1908. (Vitt et al. 1995)
- =Macromitrium salakanum var. reflexifolium M. Fleisch. ex E.B. Bartram, Philipp. J. Sci. 68: 179. 1939. (Bartram 1939b; Vitt et al. 1995)
Macromitrium savatieri Besch., Ann. Sci. Nat., Bot., sér. 7, 20: 25. 1894. (Bescherelle 1894)
Macromitrium schmidii Müll. Hal., Bot. Zeitung (Berlin) 11: 61. 1853. (Müller 1854)
- =Macromitrium benguetense R.S. Williams, Philipp. Mosses: 343. 1914. (Williams 1914; Guo et al. 2007b)
- =Macromitrium schmidii var. laxirete Thér. & P. de la Varde, Rev. Bryol. 52: 39. 1925. (Potier de la Varde 1925; Daniels 2010)
Macromitrium schmidii var. macroperichaetialium S.L. Guo & T. Cao, Gard. Bull. Singapore 58: 160. 2007. (Guo et al. 2007b)
Macromitrium schmidii Müll. Hal. var. schmidii
Macromitrium sclerodictyon Cardot, Hist. Phys. Madagascar, Mousses: 246. 1915. (Renauld & Cardot 1915)
Macromitrium scoparium Mitt., J. Linn. Soc., Bot. 12: 206. 1869. (Mitten 1869)
- =Macromitrium tonduzii Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 155. 1893. (Churchill & Linares Castillo 1995)
- =Macromitrium palmense R.S. Williams, Torreya 14: 25. 1914. (Britton & Williams 1914; Allen 2002)
- =Macromitrium williamsii E.B. Bartram, Contr. U.S. Natl. Herb. 26: 84. 1928. (Bartram 1928; Churchill & Linares Castillo 1995)
Macromitrium sejunctum B.H. Allen, Novon 8: 118. 1998. (Allen 1998)
Macromitrium semperi Müll. Hal., Linnaea 38: 559. 1874. (Müller 1874b)
Macromitrium serpens (Burch. ex Hook. & Grev.) Brid., Bryol. Univ. 1: 736. 1826. (Bridel 1826)

Basionym: Orthotrichum serpens Burch. ex Hook. & Grev., Edinburgh J. Sci. 1: 119. 1824. (Hooker & Greville 1824)
- =Macromitrium elegans Duby, Mém. Soc. Phys. Genève 19: 296. 1868, nom. illeg. (Duby 1868; O'Shea 2006)
- =Macromitrium serpentinum Mitt., Cape Monthly Mag. 17: 379. 1878. (Wijk et al. 1964)
- =Macromitrium astroideum Mitt., Philos. Trans. 168: 390. 1879. (Mitten 1879; Wilbraham & Ellis 2010)
- =Macromitrium anomodictyon Cardot, Bull. Mus. Natl. Hist. Nat. 22: 345. 1916. (Wilbraham 2016)
- =Macromitrium tristratosum Dixon, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1932(4): 10. 1932. (Dixon 1932c; Magill & van Rooy 1998)
Macromitrium sharpii H.A. Crum ex Vitt, Bryologist 82: 4. 1979. (Vitt 1979a)
Macromitrium similirete E.B. Bartram, Svensk Bot. Tidskr. 47: 399. 1953. (Bartram 1953)
Macromitrium solitarium Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 125. 1897. (Müller 1897f; Churchill et al. 2000)
Macromitrium solitarium var. brevipes Broth., Biblioth. Bot. 87: 67. 1916. (Herzog 1916a; Churchill et al. 2009)
Macromitrium solitarium Müll. Hal. var. solitarium
Macromitrium soulae Renauld & Cardot, Rev. Bot. Bull. Mens. 9: 395. 1891. (Renauld 1891)
Macromitrium speirostichum Müll. Hal., J. Mus. Godeffroy 3(6): 68. 1874. (Müller 1874a)
Macromitrium squarrosum Müll. Hal., J. Mus. Godeffroy 3(6): 68. 1874, nom. illeg. (Müller 1874a; Churchill 1994)
Macromitrium st-johnii E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 15(27): 337. 1940. (Bartram 1940)
Macromitrium standleyi E.B. Bartram, Contr. U.S. Natl. Herb. 26: 85. 1928. (Bartram 1928)
- =Macromitrium standleyi var. subundulatum E.B. Bartram, Contr. U.S. Natl. Herb. 26: 86. 1928. (Bartram 1928; Allen 2002)
Macromitrium stephanodictyon J. Froehl., Rev. Bryol. Lichénol. 31: 93. 1962. (Froehlich 1962)
Macromitrium stoneae Vitt & H.P. Ramsay, J. Hattori Bot. Lab. 59: 400. 1985. (Vitt & Ramsay 1985)
Macromitrium streimannii Vitt, Acta Bot. Fenn. 154: 72. 1995. (Vitt et al. 1995)
Macromitrium striatum Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 134. 1860. (Dozy & Molkenboer 1861)
Macromitrium strictfolium Müll. Hal., Bull. Herb. Boissier 6: 99. 1898. (Müller 1898a)
Macromitrium stricticuspis Müll. Hal., Flora 83: 334. 1897. (Müller 1897d)
Macromitrium subbrevihamatum Broth., Biblioth. Bot. 88: 12. 1920. (Herzog 1921)
Macromitrium subcirrhosum Müll. Hal., Bot. Zeitung (Berlin) 20: 373. 1862. (Müller 1862)
Macromitrium subcrenulatum Broth., Biblioth. Bot. 87: 66. 1916. (Herzog 1916a)
Macromitrium subdiaphanum Renauld & Cardot, Rev. Bot. Bull. Mens. 10: 707. 1892. (Renauld 1892)
Macromitrium subdiscretum R.S. Williams, Bull. New York Bot. Gard. 3(9): 130. 1903. (Williams 1903)
Macromitrium subhemitrichodes Müll. Hal., Hedwigia 37: 144. 1898, nom. dub. (Müller 1898c; Streimann & Klazenga 2002)
Macromitrium subhemitrichodes var. hodgkinsoniae Müll. Hal., Hedwigia 37: 144. 1898, nom. dub. (Müller 1898c; Streimann & Klazenga 2002)
Macromitrium subhemitrichodes Müll. Hal. var. subhemitrichodes, nom. dub.
Macromitrium subincurvum Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 16: 40. 1906. (Thériot 1906)
Macromitrium sublaeve Mitt., J. Linn. Soc., Bot. 12: 208. 1869. (Mitten 1869)
Macromitrium sublongicaule E.B. Bartram, Bryologist 48: 116. 1945. (Bartram 1945)
Macromitrium subpaucidens Müll. Hal., Flora 83: 334. 1897. (Müller 1897d)
Macromitrium subperichaetiale Thér., Mem. Soc. Cub. Hist. Nat. "Felipe Poey" 14: 350. 1940. (Thériot 1940)
Macromitrium subscabrum Mitt., J. Linn. Soc., Bot. 12: 215. 1869. (Mitten 1869)
Macromitrium subserrulatum Kindb., Enum. Bryin. Exot., Suppl. 1: 92. 1889. (Kindberg 1889)

Replaced synonym: Macromitrium serrulatum Müll. Hal., Linnaea 42: 490. 1879, nom. illeg. (Müller 1879b; Kindberg 1889)

≡Macromitrium venezuelense Paris, Index Bryol.: 791. 1897, nom. illeg. (Paris 1894-1898)
Macromitrium subtortum (Hook. & Grev.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 145. 1827. (Schwägrichen 1827)

Basionym: Orthotrichum subtortum Hook. & Grev., Edinburgh J. Sci. 1: 117. 1824. (Hooker & Greville 1824)

≡Leiotheca subtorta (Hook. & Grev.) Brid., Bryol. Univ. 1: 734. 1826. (Bridel 1826)
- =Macromitrium mauritianum Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 127. 1827. (Schwägrichen 1827; Wilbraham 2016)
- =Macromitrium subpungens Hampe ex Müll. Hal., Linnaea 40: 249. 1876. (Müller 1876; Wilbraham & Ellis 2010)
- =Macromitrium rhizomatosum Müll. Hal. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 360. 1880. (Bescherelle 1879; Wilbraham & Ellis 2010)
- =Macromitrium sanctae-mariae Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 33(2): 120. 1895. (Wilbraham 2016)
- =Macromitrium mauritianum var. viride Broth., Reise Ostafr., Syst. Arbeit. 3: 55. 1908. (Brotherus 1908a; Wilbraham & Ellis 2010)
- =Macromitrium subpungens var. madagassum Cardot, Hist. Phys. Madagascar, Mousses: 239. 1915. (Renauld & Cardot 1915; Wilbraham & Ellis 2010)
Macromitrium subulatum Mitt., Trans. & Proc. Roy. Soc. Victoria 19: 64. 1882. (Mitten 1883)
Macromitrium sulcatum (Hook.) Brid., Bryol. Univ. 1: 319. 1826. (Bridel 1826; Wilbraham 2016)

Basionym: Schlotheimia sulcata Hook., Musci Exot. 2: 156. 1819. (Hooker 1820)

≡Orthotrichum sulcatum (Hook.) Hook. & Grev., Edinburgh J. Sci. 1: 129. 1824. (Hooker & Greville 1824)
- =Macromitrium neelgheriense Müll. Hal., Syn. Musc. Frond. 1: 737. 1849. (Müller 1849; Gangulee 1976) ≡Macromitrium sulcatum var. neelgheriense (Müll. Hal.) Müll. Hal., Linnaea 36: 13. 1869. (Müller 1870) ≡Macromitrium sulcatum subsp. neelgheriense (Müll. Hal.) M. Fleisch., Musci Buitenzorg 2: 428. 1904.
- =Macromitrium ceylanicum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 52. 1859. (Mitten 1859b; Gangulee 1976) ≡Macromitrium sulcatum subsp. ceylanicum (Mitt.) M. Fleisch., Musci Buitenzorg 2: 428. 1904.
- =Macromitrium belangeri Müll. Hal., Bot. Zeitung (Berlin) 20: 374. 1862. (Wilbraham 2016)
- =Macromitrium levatum Mitt., J. Proc. Linn. Soc., Bot. 7: 152. 1863. (Mitten 1863; O'Shea 2006)
- =Macromitrium menziesii Mitt., J. Proc. Linn. Soc., Bot. 7: 152. 1863, nom. illeg. (Mitten 1863; O'Shea 2006)
- =Macromitrium ramentosum Thwaites & Mitt., J. Linn. Soc., Bot. 13: 301. 1873. (Mitten 1873b; Gangulee 1976) ≡Macromitrium sulcatum subsp. ramentosum (Thwaites & Mitt.) M. Fleisch., Musci Buitenzorg 2: 428. 1904.
- =Macromitrium mannii A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 147. 1874. (Jaeger 1874; O'Shea 2006)
- =Macromitrium rufescens Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 362. 1880. (Bescherelle 1879; Ellis & Wilbraham 2008)
- =Macromitrium undatifolium Müll. Hal., Flora 69: 278. 1886. (Müller 1886b; O'Shea 2006)
- =Macromitrium rugifolium Müll. Hal. ex Broth., Bot. Jahrb. Syst. 24: 241. 1897, nom. illeg. (Brotherus 1897; O'Shea 2006)
- =Macromitrium seriatum Paris & Broth., Rev. Bryol. 34: 95. 1907. (Wilbraham 2016)
- =Macromitrium perundulatum Broth., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 149. 1910. (Brotherus 1910b; O'Shea 2006)
- =Macromitrium tortifolium Thér., Bull. Mus. Natl. Hist. Nat. 18(7): 477. 1912. (O'Shea 2006)
- =Macromitrium bequaertii Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 50. 1927. (Wilbraham 2016)
- =Macromitrium trollii Dixon, Repert. Spec. Nov. Regni Veg. 38: 104. 1935. (Herzog 1935; Wilbraham 2016)
- =Macromitrium eckendorffii Thér. & P. de la Varde, Rev. Bryol. Lichénol. 11: 176. 1939. (Potier de la Varde 1939; Tixier 1989)
Macromitrium sulcatum var. leptocarpum (Broth.) J. Yu, D.D. Li, Yan Li & S.L. Guo, Phytotaxa 361(3): 289. 2018. (Yu et al. 2018b)

Basionym: Macromitrium leptocarpum Broth., Rec. Bot. Surv. India 1: 318. 1899. (Brotherus 1899b; Yu et al. 2018b)
- =Macromitrium subleptocarpum Dixon & P. de la Varde, Ann. Cryptog. Exot. 3(4): 179. 1930. (Potier de la Varde 1930; Yu et al. 2018b)
Macromitrium sulcatum (Hook.) Brid. var. sulcatum
Macromitrium swainsonii (Hook.) Brid., Bryol. Univ. 1: 318. 1826. (Bridel 1826)

Basionym: Orthotrichum swainsonii Hook., Musci Exot. 2: 127. 1819. (Hooker 1820)

≡Leiotheca swainsonii (Hook.) Brid., Bryol. Univ. 2: 730. 1827. (Bridel 1827b)
- =Schlotheimia stellulata Hornsch., Horae Phys. Berol.: 61. 1820. (Valente et al. 2020) ≡Orthotrichum stellulatum (Hornsch.) Hook. & Grev., Edinburgh J. Sci. 1: 119. 1824. (Hooker & Greville 1824; Valente et al. 2020) ≡Macromitrium stellulatum (Hornsch.) Brid., Bryol. Univ. 1: 314. 1826. (Bridel 1826; Valente et al. 2020)
- =Macromitrium xanthocarpum Hornsch., Fl. Bras. 1(2): 26. 1840. (Yano 1996)
- =Macromitrium brotheri Müll. Hal., Bull. Herb. Boissier 6: 97. 1898. (Müller 1898a; Valente et al. 2020)
- =Schlotheimia vesiculata Herzog, Beih. Bot. Centralbl., Abt. 2, 26(2): 68. 1909. (Herzog 1909; Churchill & Fuentes 2005) ≡Macromitrium vesiculatum (Herzog) Herzog, Hedwigia 57: 246. 1916. (Herzog 1916b; Churchill & Fuentes 2005)
- =Macromitrium altituberculosum E.B. Bartram, Bryologist 47: 17. 1944. (Grout 1944; Allen 2002)
Macromitrium tahitisecundum Margad., Lindbergia 1: 128. 1972. (Margadant 1972)

Replaced synonym: Dasymitrium nadeaudii Besch., Bull. Soc. Bot. France 45: 65. 1898. (Bescherelle 1898a)

≡Macromitrium tahitense Broth., Nat. Pflanzenfam. I(3): 486. 1903, nom. illeg. ≡Macromitrium bescherellei H. Whittier & B. Whittier, Bryologist 77: 435. 1974, nom. illeg. (Whittier & Whittier 1974)
Macromitrium taiheizanense Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 11. 1936. (Noguchi 1936a; Guo et al. 2007b)
Macromitrium taiwanense Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 141. 1938. (Noguchi 1938)
Macromitrium taoense Thér., Diagn. Esp. Var. Nouv. Mouss. 8: 5. 1910. (Thériot 1910b)
Macromitrium tenax Müll. Hal., Bot. Jahrb. Syst. 5: 83. 1883. (Müller 1883a)
- =Macromitrium coriaceum E.B. Bartram, Farlowia 2: 315. 1946. (Bartram 1946; Greene 1986)
Macromitrium tenax Müll. Hal. var. tenax
Macromitrium tenax var. theriotii Cardot, Wiss. Ergebn. Schwed. Südpolar-Exped. 1901–1903, 4(8): 285. 1908. (Cardot 1908c; Greene 1986)
Macromitrium thwaitesii Broth. ex M. Fleisch., Musci Buitenzorg 2: 420. 1904. (Fleischer 1904)
Macromitrium tocaremae Hampe, Linnaea 31: 524. 1862. (Hampe 1862)
Macromitrium tongense Sull., U.S. Expl. Exped., Musci: 7. 1859[1860]. (Sullivant 1859)

≡Leiostoma tongense (Sull.) Mitt., Proc. Linn. Soc. New South Wales 7: 99. 1882.
- =Drummondia villosa Besch., Ann. Sci. Nat., Bot., sér. 5, 18: 207. 1873. (Bescherelle 1873; Thouvenot 2019) ≡Dasymitrium villosum (Besch.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 423. 1880. (Jaeger & Sauerbeck 1879; Thouvenot 2019) ≡Macromitrium villosum (Besch.) Broth., Nat. Pflanzenfam. I(3): 486. 1903. (Thouvenot 2019)
- =Macromitrium villosum var. elongatum Thér., Bull. Acad. Int. Géogr. Bot. 17(217): 308. 1907. (Thériot 1907; Thouvenot 2019)
- =Macromitrium villosum var. intermedium Thér., Bull. Acad. Int. Géogr. Bot. 17(217): 308. 1907. (Thériot 1907; Thouvenot 2019)
- =Macromitrium villosum var. longisetum Thér., Bull. Acad. Int. Géogr. Bot. 17(217): 308. 1907. (Thériot 1907; Thouvenot 2019)
- =Macromitrium densifolium Thér., Bull. Acad. Int. Géogr. Bot. 18: 253. 1908. (Thériot 1908; Thouvenot 2019)
- =Macromitrium subvillosum Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 51A(17): 16. 1909. (Thouvenot 2019)
- =Macromitrium ludovicae Broth. & Paris, Öfvers. Finska Vetensk.-Soc. Förh. 53A(11): 17. 1911. (Thouvenot 2019)
- =Macromitrium elizabethae Dixon, Ann. Bryol. 7: 158. 1934. (Dixon 1934a; Miller et al. 1978)
Macromitrium torulosum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 53. 1859. (Mitten 1859b)

≡Macromitrium sulcatum var. torulosum (Mitt.) Tixier, Ceylon J. Sci., Biol. Sci. 11: 127. 1975. (Tixier 1975)
Macromitrium tosae Besch., J. Bot. (Morot) 12: 299. 1898. (Bescherelle 1898b)
- =Macromitrium melanostomum Paris & Broth., Rev. Bryol. 35: 126. 1908. (Yu et al. 2012)
- =Macromitrium courtoisii Broth. & Paris, Rev. Bryol. 36: 9. 1909. (Yu et al. 2012)
- =Macromitrium lingulatum Cardot & P. de la Varde, Rev. Bryol. 50: 18. 1923. (Potier de la Varde 1923; Li et al. 2020)
- =Macromitrium cylindrothecium Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 137. 1936. (Yu et al. 2012)
- =Macromitrium hamatum Dixon, J. Bombay Nat. Hist. Soc. 39: 777. 1937. (Dixon 1937; Li et al. 2020)
- =Macromitrium chungkingense P.C. Chen, Contr. Inst. Biol. Natl. Centr. Univ. 1: 7. 1943. (Chen 1943; Yu et al. 2012)
Macromitrium trachypodium Mitt., J. Linn. Soc., Bot. 12: 213. 1869. (Mitten 1869)
Macromitrium trichophyllum Mitt., J. Linn. Soc., Bot. 12: 207. 1869. (Mitten 1869; Allen 2002)
Macromitrium trinitense R.S. Williams, Bryologist 24: 65. 1921[1922]. (Williams 1921)
Macromitrium tuberculatum Dixon, Hong Kong Naturalist, Suppl. 2: 13. 1933. (Dixon 1933)
Macromitrium turgidum Dixon, J. Siam Soc., Nat. Hist. Suppl. 9: 22. 1932. (Dixon 1932b)
Macromitrium turgidum var. laeve Dixon, J. Bombay Nat. Hist. Soc. 39: 778. 1937. (Dixon 1937; Tixier 1973)
Macromitrium turgidum Dixon var. turgidum
Macromitrium tylostomum Mitt. ex Bosch & Sande Lac., Bryol. Jav. 1: 131. 1860. (Dozy & Molkenboer 1861)

≡Micromitrium tylostomum (Mitt. ex Bosch & Sande Lac.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 157. 1874. (Jaeger 1874)
- =Macromitrium hooglandii E.B. Bartram, Brittonia 11: 92. 1954. (Bartram 1959; Vitt et al. 1995)
Macromitrium ulophyllum Mitt., J. Linn. Soc., Bot. 12: 206. 1869. (Mitten 1869)
Macromitrium undatum Müll. Hal., Bull. Herb. Boissier 6: 97. 1898. (Müller 1898a)
Macromitrium uraiense Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 140. 1938. (Noguchi 1938)
Macromitrium urceolatulum Müll. Hal., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881)
Macromitrium urceolatum (Hook.) Brid., Bryol. Univ. 1: 312. 1826. (Bridel 1826)

Basionym: Orthotrichum urceolatum Hook., Musci Exot. 2: t. 124. 1819. (Hooker 1820)

≡Leiotheca urceolata (Hook.) Brid., Bryol. Univ. 1: 730. 1826. (Bridel 1826)
Macromitrium validum Herzog, Biblioth. Bot. 87: 66. 1916. (Herzog 1916a)
Macromitrium vesiculosum Tixier, Rev. Bryol. Lichénol. 34: 143. 1966. (Tixier 1966)
Macromitrium vitianum E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 19(11): 225. 1948. (Bartram 1948)
Macromitrium viticulosum (Raddi) Brid., Bryol. Univ. 1: 738. 1826. (Bridel 1826)

Basionym: Schlotheimia viticulosa Raddi, Critt. Bras.: 4. 1822. (Raddi 1822)
- =Macromitrium richardii Schwägr., Sp. Musc. Frond., Suppl. 2, (2,1): 70. 1826. (Schwägrichen 1826; Valente et al. 2020)
- =Macromitrium didymodon Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 138. 1827. (Schwägrichen 1827; Churchill & Linares Castillo 1995)
- =Macromitrium intortifolium Hampe, Bot. Zeitung (Berlin) 20: 362. 1862. (Valente et al. 2020)
- =Macromitrium goniopodium Mitt., J. Linn. Soc., Bot. 12: 198. 1869. (Mitten 1869; Sharp et al. 1994)
- =Macromitrium rhabdocarpum Mitt., J. Linn. Soc., Bot. 12: 199. 1869. (Mitten 1869; Churchill & Linares Castillo 1995)
- =Macromitrium insularum Mitt., J. Linn. Soc., Bot. 12: 200. 1869, nom. illeg. (Mitten 1869; Sharp et al. 1994)
- =Macromitrium leptophyllum Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 190. 1872. (Bescherelle 1872; Sharp et al. 1994)
- =Macromitrium domingense A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 149. 1874. (Jaeger 1874; Sharp et al. 1994)
- =Macromitrium glaziovii Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 6: 143. 1875. (Valente et al. 2020)
- =Macromitrium tenellum Cardot, Rev. Bryol. 36: 109. 1909. (Cardot 1909b; Sharp et al. 1994)
Macromitrium weissioides Müll. Hal., Linnaea 37: 153. 1873[1872], nom. dub. (Müller 1872a; Streimann & Klazenga 2002)
Macromitrium xenizon B.H. Allen & W.R. Buck, Mem. New York Bot. Gard. 76(3): 82. 2003. (Buck 2003)
Macromitrium yuleanum Broth. & Geh., Öfvers. Finska Vetensk.-Soc. Förh. 37: 160. 1895. (Brotherus 1895c)
- =Macromitrium deflexum E.B. Bartram, Lloydia 5: 270. 1942. (Bartram 1942a; Vitt et al. 1995)
- =Macromitrium speirophyllum E.B. Bartram, Lloydia 5: 270. 1942. (Bartram 1942a; Vitt et al. 1995)
- =Macromitrium habbemense E.B. Bartram, Lloydia 5: 271. 1942. (Bartram 1942a; Vitt et al. 1995)
- =Macromitrium novoguinense E.B. Bartram, Lloydia 5: 271. 1942. (Bartram 1942a; Vitt et al. 1995)
- =Macromitrium hattorii Nog., J. Hattori Bot. Lab. 10: 14. 1953. (Noguchi 1953; Vitt et al. 1995)
- =Macromitrium clemensiae Nog., J. Hattori Bot. Lab. 10: 16. 1953, nom. illeg. (Noguchi 1953; Vitt et al. 1995)
- =Macromitrium sarawaketense Nog., J. Hattori Bot. Lab. 17: 31. 1956. (Noguchi 1956; Vitt et al. 1995)
Macromitrium zimmermannii M. Fleisch., Musci Buitenzorg 2: 432. 1904. (Fleischer 1904)
Matteria Goffinet, Bryol. Twenty-first Cent.: 154. 1998. (Goffinet & Vitt 1998)

Replaced synonym: Macromitrium subg. Trachyphyllum Broth., Nat. Pflanzenfam. I(3): 478. 1902. (Brotherus 1902; Brotherus 1902)
Matteria gracillima (Besch.) Goffinet, Bryol. Twenty-first Cent.: 154. 1998. (Goffinet & Vitt 1998)

Basionym: Schlotheimia gracillima Besch., Bull. Soc. Bot. France 32: lxi. 1885. (Bescherelle 1885)

≡Macromitrium gracillimum (Besch.) Broth., Nat. Pflanzenfam. I(3): 478. 1902. ≡Macrocoma gracillima (Besch.) Vitt, Bryologist 83: 433. 1980[1981]. (Vitt 1980)
Matteria papillosula (Thér.) Goffinet, Bryol. Twenty-first Cent.: 154. 1998. (Goffinet & Vitt 1998; Matteri & Calabrese 1999)

Basionym: Macromitrium papillosulum Thér., Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 7: 50. 1938. (Herzog 1938a)

≡Macrocoma papillosula (Thér.) Vitt, Bryologist 83: 433. 1980[1981]. (Vitt 1980)
Nyholmiella Holmen & E. Warncke, Bot. Tidsskr. 65(1–2): 179. 1969. (Damsholt et al. 1969; Hodgetts et al. 2020)

Replaced synonym: Orthotrichum sect. Obtusifolia Schimp., Syn. Musc. Eur. (ed. 2): 319. 1876. (Schimper 1876)

≡Stroemia I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 92. 1908, nom. illeg. (Hagen 1908)
Nyholmiella gymnostoma (Bruch ex Brid.) Holmen & E. Warncke, Bot. Tidsskr. 65: 179. 1969. (Damsholt et al. 1969; Hodgetts et al. 2020)

Basionym: Orthotrichum gymnostomum Bruch ex Brid., Bryol. Univ. 1(2): 782. 1827. (Bridel 1827a)

≡Dorcadion gymnostomum (Bruch ex Brid.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879) ≡Stroemia gymnostoma (Bruch ex Brid.) I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 93. 1908. (Hagen 1908)
Nyholmiella obtusifolia (Brid.) Holmen & E. Warncke, Bot. Tidsskr. 65(1–2): 179. 1969. (Damsholt et al. 1969; Hodgetts et al. 2020)

Basionym: Orthotrichum obtusifolium Brid., Muscol. Recent. 2(2): 23. 1801. (Bridel 1801b)

≡Dorcadion obtusifolium (Brid.) Lindb., Musci Scand.: 29. 1879. (Lindberg 1879) ≡Stroemia obtusifolia (Brid.) I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 94. 1908. (Hagen 1908)
- =Orthotrichum obtusum Röhl., Deutschl. Fl. (ed. 2), Kryptog. Gew. 3: 82. 1813. (Röhling 1813; Lewinsky 1977)
- =Orthotrichum inflexum Müll. Hal., Syn. Musc. Frond. 1: 690. 1849. (Müller 1849; Lewinsky 1993c)
- =Orthotrichum obtusifolium f. minus Röll, Hedwigia 56: 182. 1915. (Röll 1915; Podpěra 1954)
- =Orthotrichum furcatum Otnyukova, Arctoa 10: 155. 2001. (Otnyukova 2001; Fedosov 2018) ≡Nyholmiella furcata (Otnyukova) Otnyukova, Novosti Sist. Nizsh. Rast. 52(2): 544. 2018. (Otnyukova 2018; Fedosov 2018)
Orthotrichum Hedw., Sp. Musc. Frond.: 162. 1801. (Hedwig 1801)

≡Dorcadion Adans. ex Lindb., Utkast Eur. Bladmoss.: 6. 1878, nom. illeg. (Lindberg 1878; Plášek et al. 2016)
- =Brachytrichum Röhl., Borkhausen's Ringen: 128, 137. 1808. (Röhling 1808)
- =Nauia Borkh., Tent. Disp. Pl. German., op. posth.: 151. 1809. (Borkhausen 1809; Wijk et al. 1964)
- =Muelleriella Dusén, Bot. Not. 1905: 304. 1905, nom. cons. (Goffinet et al. 2004)
- =Orthomitrium Lewinsky & Crosby, Novon 6: 2. 1996. (Lewinsky-Haapasaari & Crosby 1996)
Orthotrichum acutifolium R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 436. 1895, nom. illeg. (Brown 1895; Lewinsky 1993a)
Orthotrichum aequatoreum Mitt., J. Linn. Soc., Bot. 12: 184. 1869. (Mitten 1869)
- =Orthotrichum bellum Müll. Hal., Linnaea 42: 360. 1879. (Müller 1879a; Lewinsky 1984b)
- =Orthotrichum malacophyllum Cardot, Rev. Bryol. 38: 2. 1911. (Cardot 1911; Lewinsky 1984b)
- =Orthotrichum malacophyllum var. guatemalense E.B. Bartram, Bryologist 50: 207. 1947. (Bartram 1947; Lewinsky 1984b)
Orthotrichum afrofastigiatum Müll. Hal., Hedwigia 38: 113. 1899, nom. dub. (Müller 1899; Magill & van Rooy 1998)
Orthotrichum alpestre Hornsch. ex Bruch & Schimp., Bryol. Eur. 3: 75. 1849. (Bruch & Schimper 1849)

≡Orthotrichum stramineum subsp. alpestre (Hornsch. ex Bruch & Schimp.) C. Hartm., Handb. Skand. Fl. (ed. 7) 7: 364. 1858. (Hartman 1858) ≡Dorcadion alpestre (Hornsch. ex Bruch & Schimp.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum stramineum var. alpestre (Hornsch. ex Bruch & Schimp.) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 125. 1883. (Kindberg 1883) ≡Orthotrichum patens subsp. alpestre (Hornsch. ex Bruch & Schimp.) Boulay, Musc. France, Mousses: 337. 1884. (Boulay 1884)
- =Orthotrichum polare Lindb., Öfvers. Kongl. Vetensk.-Akad. Förh. 23: 537. 1866[1867]. (Lindberg 1866; Vitt 1973a) ≡Dorcadion polare (Lindb.) Lindb., Bidr. Nordens Mossfl.: 74. 1887. (Lindberg 1887; Vitt 1973a)
- =Orthotrichum watsonii James, Botany (Fortieth Parallel) 5: 401. 1871. (Vitt 1973a) ≡Orthotrichum alpestre var. watsonii (James) Grout, Moss Fl. N. Amer. 2: 125. 1935. (Grout 1933-1940)
- =Orthotrichum occidentale James, Botany (Fortieth Parallel) 5: 402. 1871. (Vitt 1973a) ≡Orthotrichum alpestre var. majus Lesq. & James, Man. Mosses N. America: 169. 1884. (Lesquereux & James 1884; Vitt 2014) ≡Orthotrichum alpestre var. occidentale (James) Grout, Moss Fl. N. Amer. 2: 124. 1935, nom. illeg. (Grout 1933-1940)
- =Orthotrichum alpestre var. lapponicum Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 9. 1887. (Podpěra 1954)
- =Orthotrichum duthiei Venturi, Rev. Bryol. 23: 27. 1896. (Venturi 1896; Lewinsky 1992)
- =Orthotrichum alpestre var. dilatatum Venturi, Acta Soc. Sci. Fenn. 24(2): 17. 1899[1898]. (Lewinsky 1992)
- =Orthotrichum venustum Venturi, Acta Soc. Sci. Fenn. 24(2): 18. 1899[1898]. (Lewinsky 1992)
- =Orthotrichum alpestre var. macrotheca Dixon, Rev. Bryol. 34: 61. 1907, nom. dub. (Lewinsky 1977)
- =Orthotrichum alpestre var. exsertum I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 82. 1908, nom. dub. (Hagen 1908; Lewinsky 1977)
- =Orthotrichum alpestre var. angustifolium J.J. Amann, Fl. Mouss. Suisse 2: 157. 1918. (Amann & Meylan 1918; Podpěra 1954)
- =Orthotrichum alpestre var. propaguliferum J.J. Amann, Fl. Mouss. Suisse 2: 157. 1918. (Amann & Meylan 1918; Podpěra 1954) ≡Orthotrichum alpestre f. propaguliferum (J.J. Amann) Podp., Consp. Musc. Eur.: 475. 1954.
- =Orthotrichum alpestre var. laricinum J.J. Amann, Bull. Soc. Vaud. Sci. Nat. 53: 94. 1920. (Podpěra 1954)
- =Orthotrichum alpestre var. engadinense Meyl., Rev. Bryol., n.s. 3: 143. 1931. (Lewinsky 1977)
Orthotrichum alpestre Hornsch. ex Bruch & Schimp. var. alpestre
Orthotrichum alpestre var. berggrenii (E.B. Bartram) Lewinsky, Bryobrothera 2: 63. 1993. (Lewinsky 1993b; Lara et al. 2016)

Basionym: Orthotrichum berggrenii E.B. Bartram, Occas. Pap. Bernice Pauahi Bishop Mus. 15: 103. 1939. (Bartram 1939a; Lewinsky 1993b)
Orthotrichum angustifolium Hook. f. & Wilson, London J. Bot. 3: 547. 1844. (Hooker & Wilson 1844a; Goffinet et al. 2004)

≡Muelleriella angustifolia (Hook. f. & Wilson) Dusén, Bot. Not. 1905: 304. 1905. (Goffinet et al. 2004)
Orthotrichum anodon F. Lara, Garilleti & Mazimpaka, Bryologist 109(2): 188. 2006. (Garilleti et al. 2006)
Orthotrichum anomalum Hedw., Sp. Musc. Frond.: 162. 1801. (Hedwig 1801)

≡Weissia anomala (Hedw.) Roth ex G. Gaertn., B. Mey. & Schreb., Oekon. Fl. Wetterau 3(2): 93. 1802. (Gaertner et al. 1802) ≡Dorcadion anomalum (Hedw.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Bryum tectorum With., Syst. Arr. Brit. Pl. (ed. 4) 3: 793. 1801. (Withering 1801; Wijk et al. 1959)
- =Orthotrichum saxatile Brid., Muscol. Recent. 2(2): 27. 1801, nom. illeg. (Bridel 1801b) ≡Brachytrichum saxatile (Brid.) Röhl., Borkhausen's Ringen: 137. 1808, nom. illeg. (Röhling 1808)
- =Orthotrichum commune P. Beauv., Prodr. Aethéogam.: 80. 1805, nom. illeg.
- =Orthotrichum saxatile var. humile Brid., Muscol. Recent. Suppl. 2: 10. 1812. (Bridel 1812; Wijk et al. 1964)
- =Orthotrichum saxatile var. longisetum Brid., Muscol. Recent. Suppl. 2: 10. 1812. (Bridel 1812)
- =Orthotrichum aureum Mart., Fl. Crypt. Erlang.: 77. 1817. (Vitt 1973a) ≡Orthotrichum anomalum var. aureum (Mart.) Hampe, Flora 20: 280. 1837.
- =Orthotrichum hutchinsiae var. viride Hook. & Grev., Edinburgh J. Sci. 1: 125. 1824. (Hooker & Greville 1824; Wijk et al. 1964) ≡Orthotrichum crispum var. viride (Hook. & Grev.) Myrin, Kongl. Vetensk. Acad. Handl. 1831: 255. 1832. (Myrin 1832)
- =Orthotrichum canadense Bruch & Schimp., London J. Bot. 2: 667. 1843. (Vitt 1973a)
- =Orthotrichum anomalum var. humile Hammar, Monogr. Orthotrich. Ulot. Suec.: 22. 1852. (Hammar 1852)
- =Orthotrichum stevenii Müll. Hal., Bot. Zeitung (Berlin) 16: 164. 1858. (Vitt 1973a) ≡Dorcadion stevenii (Müll. Hal.) Broth., Étud. Distr. Mousses Caucase: 1. 1884. (Brotherus 1884; Vitt 1973a)
- =Orthotrichum saxatile J.B. Wood ex Schimp., Bryol. Eur. 1–2: 11. 1864, nom. illeg. (Vitt 1973a) ≡Orthotrichum anomalum var. saxatile Milde, Bryol. Siles.: 171. 1869. ≡Dorcadion anomalum var. saxatile (Milde) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum anomalum subsp. saxatile (Milde) Boulay, Musc. France, Mousses: 332. 1884. (Boulay 1884)
- =Orthotrichum anomalum var. cusianum De Not., Comment. Soc. Crittog. Ital. 2(2): 106 [‘206’]. 1865. (De Notaris 1865; Brizi 1892)
- =Orthotrichum anomalum var. montanum Venturi, Hedwigia 12: 8. 1873. (Ochyra et al. 2003) ≡Dorcadion anomalum var. montanum (Venturi) Arnell, Ark. Bot. 13(2): 60. 1913. (Arnell 1913)
- =Orthotrichum anomalum var. cylindricum Schimp., Syn. Musc. Eur. (ed. 2): 308. 1876. (Schimper 1876; Podpěra 1954)
- =Orthotrichum anomalum var. ibericum Venturi, Deux Excurs. Bot.: 170. 1880. (Lara & Garilleti 2014)
- =Orthotrichum anomalum var. ciliatum Jur., Laubm.-Fl. Oesterr.-Ung.: 213. 1882, nom. illeg. (Juratzka 1882; Wijk et al. 1964)
- =Orthotrichum berthoumieui Buyss., Feuille Jeunes Naturalistes 12: 94. 1882. (Wijk et al. 1969)
- =Orthotrichum anomalum subsp. defluens Venturi, Rev. Bryol. 9: 58. 1882. ≡Orthotrichum anomalum var. defluens (Venturi) Venturi, Muscol. Gall.: 159. 1887, nom. illeg. (Husnot 1884–1894; Ochyra et al. 2003)
- =Orthotrichum defluens Venturi, Rev. Bryol. 9: 58, 59. 1882. (Wijk et al. 1964)
- =Orthotrichum anomalum var. commune Venturi, Muscol. Gall.: 159. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum anomalum var. americanum Venturi, Cat. Canad. Pl., Musci: 86. 1892, nom. illeg. (Macoun & Kindberg 1892; Crum & Anderson 1981)
- =Orthotrichum anomalum var. elongatum Sande Lac., Nieuwe Lijst Ned. Blad-Leverm. 2(2): 88. 1893. (Sande Lacoste 1893)
- =Orthotrichum consimile subsp. anomaloides Kindb., Eur. N. Amer. Bryin. 2: 310. 1897[1898]. (Kindberg 1897; Vitt 2014)
- =Orthotrichum anomalum var. octostriatum Schiffn., Oesterr. Bot. Z. 48: 391. 1898. (Podpěra 1954) ≡Orthotrichum anomalum f. octostriatum (Schiffn.) Podp., Consp. Musc. Eur.: 462. 1954.
- =Orthotrichum anomalum var. ovale Venturi ex Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 322. 1899. (Podpěra 1954) ≡Orthotrichum anomalum f. ovale (Venturi ex Hérib.) Podp., Consp. Musc. Eur.: 462. 1954.
- =Orthotrichum anomalum var. opacum Culm., Rev. Bryol. 37: 93. 1910. (Podpěra 1954)
- =Orthotrichum anomalum var. estriatum J.J. Amann, Fl. Mouss. Suisse 2: 151. 1918. (Amann & Meylan 1918) ≡Orthotrichum cupulatum f. estriatum (J.J. Amann) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum anomalum var. macroporum Herzog, Kryptog. Forsch. 4: 281. 1919. (Herzog 1919; Podpěra 1954)
- =Orthotrichum anomalum f. niveocalyptratum Mönk., Laubm. Eur.: 608. 1927. ≡Orthotrichum anomalum var. niveocalyptratum (Mönk.) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 28. 1932. (Piccioli 1932)
- =Orthotrichum anomalum var. algeriense Thér. & Trab., Bull. Soc. Hist. Nat. Afrique N. 21(3): 31. 1930. (Ros & Cano 2008)
- =Orthotrichum anomalum f. nigrescens Podp., Bul. Grăd. Bot. Univ. Cluj 11: 60. 1932. (Podpěra 1954)
Orthotrichum anomalum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 433. 1895, nom. illeg. (Brown 1895; Wijk et al. 1964)
Orthotrichum assimile Müll. Hal., Syn. Musc. Frond. 1: 704. 1849. (Müller 1849)
- =Orthotrichum benmorense R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 430. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum longitheca R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 433. 1895. (Brown 1895; Fife 2017)
- =Orthotrichum magnotheca R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 435. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum latifolium R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 441. 1895, nom. illeg. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum acroblepharis Müll. Hal., Hedwigia 37: 136. 1898. (Müller 1898c; McCarthy 2006)
- =Orthotrichum macloskii Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 80. 1903. (Dusén 1903; Lewinsky 1984b)
- =Orthotrichum conceptionense Thér., Revista Chilena Hist. Nat. 30: 352. 1926. (Lewinsky 1984b)
Orthotrichum atratum Mitt., J. Linn. Soc., Bot. 15: 66. 1876[1877]. (Mitten 1876; Goffinet et al. 2004)

≡Muelleriella atrata (Mitt.) Vitt, Lindbergia 5: 95. 1979[1980]. (Vitt 1979b; Goffinet et al. 2004)
- =Muelleriella engelii Vitt, J. Hattori Bot. Lab. 40: 98. 1976. (Vitt 1976; Goffinet et al. 2004)
Orthotrichum aucklandicum (Vitt) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 287. 2004. (Goffinet et al. 2004)

Basionym: Muelleriella aucklandica Vitt, J. Hattori Bot. Lab. 40: 94. 1976. (Vitt 1976; Goffinet et al. 2004)
Orthotrichum bartramii R.S. Williams, Bryologist 28(6): 76. 1925. (Williams 1925)
Orthotrichum bicolor Thér., Revista Chilena Hist. Nat. 25: 302. 1921. (Thériot 1921b)
- =Orthotrichum ulotoides Herzog, Hedwigia 64: 10. 1923. (Lewinsky 1987)
Orthotrichum bistratosum (Schiffn.) J. Guerra, Anales Jard. Bot. Madrid 42: 248. 1985. (Guerra 1985)

Basionym: Orthotrichum cupulatum var. bistratosum Schiffn., Ann. K. K. Naturhist. Hofmus. 27: 492. 1913. (Schiffner 1913)

≡Orthotrichum cupulatum f. bistratosum (Schiffn.) Laz., Žurn. Inst. Bot. Vseukrajins'k. Akad. Nauk 26–27: 209. 1938.
Orthotrichum callistomum Fisch.-Oost. ex Bruch & Schimp., Bryol. Eur. 3: 77. 1850. (Bruch & Schimper 1850)
- =Racomitrium delavayi Broth. & Paris, Rev. Bryol. 35: 126. 1908. (Lewinsky 1992) ≡Orthotrichum delavayi (Broth. & Paris) T. Cao, J. Hattori Bot. Lab. 84: 14. 1998. (Cao et al. 1998; Lewinsky 1992)
- =Orthotrichum callistomoides Broth., Sitzungsber. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Abt. 1, 133: 571. 1924. (Brotherus 1924b; Lewinsky 1992)
Orthotrichum calvum Hook. f. & Wilson, Fl. Nov.-Zel. 2: 80. 1854. (Hooker 1855)
- =Orthotrichum avonense R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 438. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum minimifolium R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 439. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum minutum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 439. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum calvum var. brevisetum Dixon, New Zealand Inst. Bull. 3(4): 173. 1926. (Dixon 1926; Lewinsky 1984a)
Orthotrichum camanchacanum Plášek, Sawicki & F. Osorio, PhytoKeys 242: 53. 2024. (Plášek et al. 2024)
Orthotrichum cambrense Bosanquet & F. Lara, Cryptog., Bryol. 33(4): 330. 2012. (Bosanquet & Lara 2012)
Orthotrichum canum Mitt., J. Linn. Soc., Bot. 8: 26. 1865[1864]. (Mitten 1864a)

≡Orthotrichum diaphanum subsp. canum (Mitt.) Kindb., Eur. N. Amer. Bryin. 2: 309. 1897[1898]. (Kindberg 1897)
Orthotrichum capense O'Shea, Trop. Bryol. 29: 5. 2008. (O'Shea 2008)

Replaced synonym: Syrrhopodon recurvifolius Hornsch., Linnaea 15: 118. 1841. (Hornschuch 1841)

≡Orthotrichum recurvifolium (Hornsch.) Müll. Hal., Syn. Musc. Frond. 2: 640. 1851, nom. illeg. (Müller 1851)
Orthotrichum casasianum F. Lara, Garilleti & Mazimpaka, J. Bryol. 21: 47. 1999. (Mazimpaka et al. 1999)
Orthotrichum columbicum Mitt., J. Linn. Soc., Bot. 8: 24. 1865[1864]. (Mitten 1864a; Medina et al. 2012)

≡Orthotrichum pulchellum var. columbicum (Mitt.) Grout, Moss Fl. N. Amer. 2: 130. 1935. (Grout 1933-1940)
- =Orthotrichum winteri Schimp., Musci Eur. Nov.: 1. 1866. (Schimper 1864-1866; Medina et al. 2012) ≡Orthotrichum pulchellum var. winteri (Schimp.) Braithw., Brit. Moss Fl. 2: 88. 1889. (Braithwaite 1887-1905)
- =Orthotrichum pulchellum var. longipes Sull., Man. Mosses N. America: 175. 1884. (Lesquereux & James 1884; Medina et al. 2012)
- =Orthotrichum ulotiforme Renauld & Cardot, Bot. Gaz. 15: 42. 1890. (Medina et al. 2012) ≡Orthotrichum pulchellum subsp. ulotiforme (Renauld & Cardot) Kindb., Eur. N. Amer. Bryin. 2: 309. 1897[1898]. (Kindberg 1897)
- =Orthotrichum pulchellum var. productipes Renauld & Cardot, Bot. Gaz. 15: 43. 1890. (Medina et al. 2012)
Orthotrichum comosum F. Lara, R. Medina & Garilleti, Taxon 62(6): 1142. 2013. (Medina et al. 2013)
Orthotrichum compactum Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 81. 1903. (Dusén 1903)
- =Orthotrichum vittatum Cardot, Bull. Herb. Boissier, sér. 2, 5: 1005. 1905, nom. illeg. (Lewinsky 1984b)
Orthotrichum confusum R. Medina, F. Lara & Garilleti, Taxon 61(6): 1191. 2012. (Medina et al. 2012)
Orthotrichum consimile Mitt., J. Linn. Soc., Bot. 8: 24. 1865[1864]. (Mitten 1864a; Medina et al. 2012)
Orthotrichum consobrinum Cardot, Bull. Herb. Boissier, sér. 2, 8: 336. 1908. (Cardot 1908b)
- =Orthotrichum courtoisii Broth. & Paris, Rev. Bryol. 37: 2. 1910. (Paris 1910; Lewinsky 1993a)
- =Orthotrichum calvum Cardot ex Ihsiba, Classif. Mosses Japan: 89. 1932, nom. illeg. (Iwatsuki 1991)
Orthotrichum crassifolium Hook. f. & Wilson, London J. Bot. 3: 546. 1844. (Hooker & Wilson 1844a; Goffinet et al. 2004)

≡Ulota crassifolia (Hook. f. & Wilson) Hook. f., Handb. N. Zeal. Fl.: 438. 1867. (Hooker 1867; Goffinet et al. 2004) ≡Muelleriella crassifolia (Hook. f. & Wilson) Dusén, Bot. Not. 1905: 304. 1905. (Goffinet et al. 2004)
- =Muelleriella crassifolia var. lingulata Dusén, Bot. Not. 1905: 304. 1905. (Greene 1986)
Orthotrichum crassifolium subsp. acutum (Müll. Hal.) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 288. 2004. (Goffinet et al. 2004)

Basionym: Orthotrichum crassifolium var. acutum Müll. Hal., Syn. Musc. Frond. 1: 691. 1849. (Müller 1849)

≡Muelleriella crassifolia subsp. acuta (Müll. Hal.) Vitt, J. Hattori Bot. Lab. 40: 103. 1976. (Vitt 1976)
Orthotrichum crassifolium Hook. f. & Wilson subsp. crassifolium
Orthotrichum crenatoerosum Müll. Hal., Flora 68: 420. 1885. (Müller 1885)

≡Ulota crenatoerosa (Müll. Hal.) Kindb., Enum. Bryin. Exot.: 79. 1888. (Kindberg 1888)
Orthotrichum crenulatum Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 48. 1859. (Mitten 1859b)
- =Orthotrichum virens Venturi, Acta Soc. Sci. Fenn. 24(2): 18. 1899[1898]. (Lewinsky 1992)
Orthotrichum cucullatum F. Lara, R. Medina & Garilleti, Taxon 62(6): 1143. 2013. (Medina et al. 2013)
Orthotrichum cupulatum Hoffm. ex Brid., Muscol. Recent. 2(2): 25. 1801. (Bridel 1801b)

≡Brachytrichum cupulatum (Hoffm. ex Brid.) Röhl., Deutschl. Fl. (ed. 2), Kryptog. Gew. 3: 48. 1813. ≡Orthotrichum anomalum var. cupulatum (Hoffm. ex Brid.) Wahlenb., Fl. Suec. (Wahlenberg) 2: 736. 1826. (Wahlenberg 1826) ≡Orthotrichum rupincola var. cupulatum (Hoffm. ex Brid.) Myrin, Kongl. Vetensk. Acad. Handl. 1831: 255. 1832, nom. illeg. (Myrin 1832) ≡Dorcadion cupulatum (Hoffm. ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Bryum sessile With., Syst. Arr. Brit. Pl. (ed. 4) 3: 793. 1801. (Withering 1801; Wijk et al. 1969)
- =Orthotrichum confertum Bruch, Bryol. Univ. 1: 783. 1827. (Bridel 1827a; Vitt 1973a) ≡Orthotrichum cupulatum var. confertum (Bruch) Huebener, Muscol. Germ.: 381. 1833. (Huebener 1833)
- =Orthotrichum strangulatum var. mucronatum Venturi, Hedwigia 12: 23. 1873. ≡Orthotrichum cupulatum var. mucronatum (Venturi) Paris, Index Bryol. (ed. 2) 3: 327. 1905. (Paris 1904-1906; Podpěra 1954) ≡Orthotrichum cupulatum f. mucronatum (Venturi) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum cupulatum var. calcareum Venturi, Hedwigia 12: 7. 1873. ≡Orthotrichum urnigerum var. calcareum (Venturi) Venturi, Muscol. Gall.: 164. 1887. (Husnot 1884–1894) ≡Orthotrichum calcareum (Venturi) Venturi, Rev. Bryol. 22: 52. 1895, nom. illeg. (Venturi 1895; Wijk et al. 1964)
- =Orthotrichum cupulatum var. minus Venturi, Hedwigia 12: 7. 1873, nom. illeg. (Garilleti et al. 2007)
- =Orthotrichum utahense Sull. ex Lesq., Misc. Publ. U.S. Geol. Surv. Territ. 4: 157. 1874. (Sharp et al. 1994)
- =Orthotrichum cupulatum var. winteri Venturi, Rev. Bryol. 4: 19. 1877. (Podpěra 1954)
- =Orthotrichum sardagnanum Venturi, Rev. Bryol. 6: 56. 1879. (Ros et al. 1999) ≡Orthotrichum cupulatum subsp. sardagnanum (Venturi) Venturi, Rev. Bryol. 9: 60. 1882. ≡Orthotrichum cupulatum var. sardagnanum (Venturi) Weim., Förteckn. Skand. Växt., Moss. (ed. 2): 41. 1937.
- =Orthotrichum perforatum Limpr., Jahresber. Schles. Ges. Vaterl. Cult. 61: 214. 1884, nom. illeg. (Hill et al. 2006) ≡Orthotrichum limprichtii I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1897(2): 10. 1897[1898]. (Hagen 1897; Hill et al. 2006) ≡Orthotrichum urnigerum subsp. limprichtii (I. Hagen) Kindb., Skand. Bladmossfl. (Kindberg): 145. 1903.
- =Orthotrichum abbreviatum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 9. 1885. (Grönvall 1885; Wijk et al. 1964) ≡Orthotrichum cupulatum var. abbreviatum (Grönvall) Mönk., Laubm. Eur.: 610. 1927. (Mönkemeyer 1927)
- =Orthotrichum cupulatum var. commune Venturi, Muscol. Gall.: 160. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum cupulatum var. papillosum Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 174. 1889. (Kürschner & Frey 2011)
- =Orthotrichum longifolium Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 175. 1889, nom. illeg. (Wijk et al. 1967) ≡Orthotrichum cupulatum var. longifolium Limpr., Laubm. Deutschl. 2: 44. 1890. (Limpricht 1885–1903) ≡Orthotrichum cupulatum f. longifolium (Limpr.) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum cupulatum var. octostriatum Limpr., Laubm. Deutschl. 2: 45. 1890. (Limpricht 1885–1903; Podpěra 1954) ≡Orthotrichum cupulatum f. octostriatum (Limpr.) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum baldaccii Bott. & Venturi, Hedwigia 31: 136. 1892. (Wijk et al. 1969) ≡Orthotrichum cupulatum var. baldaccii (Bott. & Venturi) Podp., Consp. Musc. Eur.: 464. 1954. (Podpěra 1954) ≡Orthotrichum cupulatum subsp. baldaccii (Bott. & Venturi) J. Guerra, Acta Bot. Malac. 10: 13. 1985. (Guerra & Puche 1985)
- =Orthotrichum ornatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 426. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum calcareum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 427. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum pulvinatum R. Br. bis, Trans. & Proc. New Zealand Inst. 4: 426. 1895. (Brown 1895; Lewinsky 1984a)
- =Orthotrichum cupulatum var. calcareum Velen., Rozpr. České Akad. Císaře Františka Josefa Vědy, Tř. 2, Vědy Math. Přír. 6(6): 195. 1897, nom. illeg. (Warnstorf 1904–1906)
- =Orthotrichum cupulatum subsp. sardagnae Kindb., Eur. N. Amer. Bryin. 2: 311. 1897[1898], nom. illeg. (Kindberg 1897; Wijk et al. 1964)
- =Orthotrichum cupulatum var. luridum I. Hagen, Tromsø Mus. Aarsh. 21–22(1): 74. 1899. (Hagen 1899; Podpěra 1954)
- =Orthotrichum cupulatum var. fenestratum Velen., Rozpr. České Akad. Císaře Františka Josefa Vědy, Tř. 2, Vědy Math. Přír. 9(28): 5. 1900. (Velenovský 1900; Podpěra 1954) ≡Orthotrichum cupulatum f. fenestratum (Velen.) Laz., Trudy Fiz.-Mat. Vidd. 15(1): 24. 1929.
- =Orthotrichum leiodon Kindb., Hedwigia 42(Beibl.): 17. 1903. (Sharp et al. 1994)
- =Orthotrichum oamarense R. Br. bis, Trans. & Proc. New Zealand Inst. 35: 332. 1903. (Lewinsky 1984a)
- =Orthotrichum oamaruanum R. Br. bis, Trans. & Proc. New Zealand Inst. 35: 332. 1903. (Lewinsky 1984a)
- =Orthotrichum cupulatum var. macrocarpum Warnst., Krypt.-Fl. Brandenburg, Laubm. 2: 383. 1904. (Warnstorf 1904–1906; Podpěra 1954) ≡Orthotrichum cupulatum f. macrocarpum (Warnst.) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum cupulatum subsp. juranum Meyl., Rev. Bryol. 33: 4. 1906. ≡Orthotrichum juranum (Meyl.) G. Roth, Hedwigia 57: 136. 1915. (Wijk et al. 1964) ≡Orthotrichum cupulatum var. juranum (Meyl.) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 32. 1932. (Piccioli 1932)
- =Orthotrichum tomentosum Głow., Abh. K.K. Zool.-Bot. Ges. Wien 5(2): 23. 1910. (Wijk et al. 1964) ≡Orthotrichum cupulatum var. tomentosum (Głow.) Podp., Consp. Musc. Eur.: 454. 1954. (Podpěra 1954)
- =Orthotrichum nudum var. immersum Herzog, Bot. Jahrb. Syst. 60(5): 579. 1926. ≡Orthotrichum cupulatum var. immersum (Herzog) Podp., Consp. Musc. Eur.: 464. 1954. (Podpěra 1954)
- =Orthotrichum juranum var. defluens Culm., Rev. Bryol. 53: 55. 1926. (Podpěra 1954)
- =Orthotrichum cupulatum var. sardagnae Mönk., Laubm. Eur.: 610. 1927, nom. illeg. (Mönkemeyer 1927; Wijk et al. 1964)
- =Orthotrichum sardagnanum var. calvum Latzel, Beih. Bot. Centralbl., Abt. 2, 48(2): 495. 1931. (Podpěra 1954) ≡Orthotrichum cupulatum f. calvum (Latzel) Podp., Consp. Musc. Eur.: 463. 1954.
- =Orthotrichum cupulatum f. subnudum Latzel, Beih. Bot. Centralbl., Abt. 2, 61: 242. 1941. (Latzel 1941)
Orthotrichum cupulatum var. austroamericanum Lewinsky, Lindbergia 10: 69. 1984[1985]. (Lewinsky 1984b; Lara et al. 2016)
Orthotrichum cupulatum var. austrocupulatum (Dixon & Sainsbury) Lewinsky, J. Hattori Bot. Lab. 56: 433. 1984. (Lewinsky 1984a; Lara et al. 2016)

Basionym: Orthotrichum austrocupulatum Dixon & Sainsbury, J. Bot. 71: 244. 1933. (Dixon & Sainsbury 1933; Lewinsky 1984a)
Orthotrichum cupulatum Hoffm. ex Brid. var. cupulatum
Orthotrichum cupulatum var. fuscum (Venturi) Boulay, Musc. France, Mousses: 329. 1884. (Boulay 1884; Hodgetts et al. 2020)

Basionym: Orthotrichum venturii subsp. fuscum Venturi, Rev. Bryol. 8: 47. 1881. (Venturi 1881)

≡Orthotrichum venturii var. fuscum (Venturi) Venturi, Muscol. Gall.: 164. 1887. (Husnot 1884–1894) ≡Orthotrichum fuscum (Venturi) Venturi, Musc. Trentino: 52. 1899. (Venturi 1899; Hodgetts et al. 2020) ≡Orthotrichum schubartianum var. fuscum (Venturi) J.J. Amann, Fl. Mouss. Suisse 2: 153. 1918. (Amann & Meylan 1918) ≡Orthotrichum urnigerum var. fuscum (Venturi) Venturi, Consp. Musc. Eur.: 463. 1958, nom. illeg. (Podpěra 1954)
- =Orthotrichum urnigerum var. perforatum Venturi, Muscol. Gall.: 163. 1887. (Husnot 1884–1894; Wijk et al. 1964) ≡Orthotrichum urnigerum subsp. perforatum (Venturi) Giacom., Ist. Bot. Reale Univ. Reale Lab. Crittog. Pavia, Atti 4: 247. 1947.
Orthotrichum cupulatum var. lithophilum Plášek & Sawicki, Acta Soc. Bot. Poloniae 92(176370): 2. 2023. (Plášek et al. 2023)
Orthotrichum cupulatum var. riparium Huebener, Muscol. Germ.: 381. 1833. (Huebener 1833; Hodgetts et al. 2020)

≡Orthotrichum nudum var. riparium (Huebener) Baehni, Candollea 8: 187. 1941.
- =Orthotrichum nudum Dicks., Fasc. Pl. Crypt. Brit. 4: 6. 1801. (Dickson 1801; Ignatov et al. 2006) ≡Orthotrichum cupulatum var. nudum (Dicks.) Lindb., Revis. Crit. Icon.: 66. 1871. (Lindberg 1871) ≡Orthotrichum cupulatum subsp. nudum (Dicks.) Kindb., Eur. N. Amer. Bryin. 2: 310. 1897[1898]. (Kindberg 1897) ≡Orthotrichum anomalum subsp. nudum (Dicks.) J.J. Amann, Fl. Mouss. Suisse 2: 151. 1954.
- =Orthotrichum floerkei Hornsch., Bryol. Univ. 1: 783. 1827. (Bridel 1827a; Wijk et al. 1964) ≡Orthotrichum cupulatum var. floerkei (Hornsch.) Huebener, Muscol. Germ.: 381. 1833. ≡Orthotrichum anomalum var. floerkeanum Hampe, Flora 20: 280. 1837, nom. illeg. ≡Orthotrichum floerkeanum (Hampe) Martins, Voy. Bot. Côtes Norvège: 126. 1846, nom. illeg. (Podpěra 1954)
- =Orthotrichum commutatum Bruch, Bryol. Univ. 1: 784. 1827. (Bridel 1827a; Wijk et al. 1964) ≡Orthotrichum anomalum var. cryptopodium Huebener, Muscol. Germ.: 379. 1833. (Huebener 1833) ≡Orthotrichum cupulatum var. commutatum (Bruch) Jansen & Wacht., Ned. Kruidk. Arch., ser. 3, 53: 194. 1943, nom. illeg.
- =Orthotrichum cupulatum var. rudolphianum Schimp., Syn. Musc. Eur.: 261. 1860, nom. illeg. (Schimper 1860) ≡Orthotrichum nudum var. rudolphianum (Schimp.) Venturi, Muscol. Gall.: 161. 1887, nom. illeg. (Husnot 1884–1894) ≡Orthotrichum cupulatum f. rudolphianum Podp., Consp. Musc. Eur.: 464. 1954. (Podpěra 1954)
- =Orthotrichum nudum var. commune Venturi, Muscol. Gall.: 161. 1887. (Husnot 1884–1894)
- =Orthotrichum nudum var. norvegicum I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 54. 1908. (Hagen 1908; Podpěra 1954) ≡Orthotrichum cupulatum f. norvegicum (I. Hagen) Podp., Consp. Musc. Eur.: 464. 1954. ≡Orthotrichum limprichtii var. norvegicum (I. Hagen) Nyholm, Ill. Moss Fl. Fennoscandia. II. Musci: 775. 1969. (Nyholm 1969)
- =Orthotrichum nudum var. fenestratum Herzog, Kryptog. Forsch. 1(5): 354. 1920. (Podpěra 1954) ≡Orthotrichum cupulatum f. fenestratum (Herzog) Podp., Consp. Musc. Eur.: 464. 1954, nom. illeg.
Orthotrichum cylindrocarpum Lesq., Californian Mosses: 6. 1863. (Lesquereux 1863; Medina et al. 2019)

≡Orthotrichum tenellum var. cylindrocarpum (Lesq.) L.F. Koch, Leafl. W. Bot. 6: 23. 1950. (Koch 1950)
- =Orthotrichum coulteri Mitt., J. Linn. Soc., Bot. 8: 25. 1865[1864]. (Mitten 1864a; Medina et al. 2019) ≡Orthotrichum tenellum var. coulteri (Mitt.) Grout, N. Amer. Fl. 15A: 19. 1946. (Grout 1946)
Orthotrichum dagestanicum Fedosov & Ignatova, Arctoa 19: 69. 2010[2011]. (Fedosov & Ignatova 2010)
Orthotrichum dentatum Kiebacher & Lüth, J. Bryol. 39(1): 46. 2017[2016]. (Kiebacher & Lüth 2017)
Orthotrichum denticulatum Lewinsky, Bot. Tidsskr. 72: 75. 1978. (Lewinsky 1978)

Replaced synonym: Orthotrichum latifolium Dixon ex Sappa, Lav. Bot. Ist. Univ. Torino 10: 2. 1950, nom. illeg. (Sappa 1950)
Orthotrichum diaphanum Schrad. ex Brid., Muscol. Recent. 2(2): 29. 1801. (Bridel 1801b)

≡Weissia diaphana (Schrad. ex Brid.) Roth ex Rebent., Prodr. Fl. Neomarch.: 259. 1854. ≡Dorcadion diaphanum (Schrad. ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum ulmicola Lag., D. García & Clemente, Anales Ci. Nat. 5(14): 186. 1802. (Lagasca y Segura et al. 1802; Wijk et al. 1964) ≡Orthotrichum diaphanum var. ulmicola (Lag., D. García & Clemente) Huebener, Muscol. Germ.: 377. 1833. (Huebener 1833)
- =Orthotrichum aristatum Turner, Muscol. Hibern. Spic.: 100. 1804. (Turner 1804) ≡Orthotrichum diaphanum var. aristatum (Turner) Brid., Bryol. Univ. 1: 294. 1826. (Bridel 1826)
- =Orthotrichum heterophyllum P. Beauv., Prodr. Aethéogam.: 80. 1805. (Wijk et al. 1964) ≡Orthotrichum diaphanum var. heterophyllum (P. Beauv.) F. Weber & D. Mohr, Nomencl. Bot. 2: 303. 1824. (Steudel 1824)
- =Orthotrichum pilosum P. Beauv., Prodr. Aethéogam.: 81. 1805, nom. illeg.
- =Orthotrichum leucomitrium Bruch ex Brid., Bryol. Univ. 1: 789. 1827. (Bridel 1827a; Wijk et al. 1964) ≡Orthotrichum diaphanum var. leucomitrium (Bruch ex Brid.) Huebener, Muscol. Germ.: 377. 1833. (Huebener 1833)
- =Orthotrichum glaucum Spreng., Syst. Veg. [Sprengel] 4(2): 323. 1827. (Sprengel 1827; Lewinsky 1978)
- =Orthotrichum neglectum Opiz, Seznam 3: 199. 1852. (Wijk et al. 1964)
- =Orthotrichum pseudotenellum Hampe ex Müll. Hal., Bot. Zeitung (Berlin) 17: 230. 1859. (Lewinsky 1978)
- =Orthotrichum diaphanum var. aquaticum G. Davies ex Venturi, Hedwigia 12: 39. 1873. (Podpěra 1954) ≡Orthotrichum diaphanum f. aquaticum (G. Davies ex Venturi) Mönk., Laubm. Eur.: 627. 1927.
- =Orthotrichum mollissimum Müll. Hal., Linnaea 39: 407. 1875. (Müller 1875b; Lewinsky 1978)
- =Orthotrichum piliferum Schimp. ex J. Shaw, Cape Monthly Mag. 17: 378. 1878, nom. illeg. (Lewinsky 1978)
- =Orthotrichum diaphanum var. epilosum Głow., Verh. K.K. Zool.-Bot. Ges. Wien 57: 231. 1907. (Głowacki 1907)
- =Orthotrichum diaphanum var. epilosum Warnst., Hedwigia 57: 89. 1915, nom. illeg. (Wijk et al. 1964) ≡Orthotrichum diaphanum f. epilosum C.E.O. Jensen ex Podp., Consp. Musc. Eur.: 478. 1954, nom. illeg.
- =Orthotrichum garrettii Grout & Flowers, Moss Fl. N. Amer. 2: 128. 1935. (Grout 1933-1940; Sharp et al. 1994)
- =Orthotrichum diaphanum f. apuli Papp, Bul. Grăd. Bot. Univ. Cluj 25: 169. 1945. (Podpěra 1954)
Orthotrichum diaphanum Schrad. ex Brid. var. diaphanum
Orthotrichum diaphanum var. podocarpi (Müll. Hal.) Lewinsky, Lindbergia 10: 72. 1984[1985]. (Lewinsky 1984b; Lara et al. 2016)

Basionym: Orthotrichum podocarpi Müll. Hal., Linnaea 42: 361. 1879. (Müller 1879a; Lewinsky 1984b)
- =Orthotrichum nutans Müll. Hal., Linnaea 42: 363. 1879. (Müller 1879a; Lewinsky 1984b)
- =Orthotrichum schnyderi Müll. Hal., Linnaea 43: 441. 1882. (Müller 1882; Lewinsky 1984b)
- =Orthotrichum aurantiorum Müll. Hal., Linnaea 43: 443. 1882. (Müller 1882; Lewinsky 1984b)
- =Orthotrichum quenoae Müll. Hal., Linnaea 43: 445. 1882. (Müller 1882; Lewinsky 1984b)
- =Orthotrichum diaphanum var. brevipilum Warnst., Krypt.-Fl. Brandenburg, Laubm. 2: 366. 1904. (Warnstorf 1904–1906; Lewinsky 1984b)
- =Orthotrichum herteri Herzog, Revista Sudamer. Bot. 5: 19. 1937. (Lewinsky 1984b)
Orthotrichum erpodiaceum Müll. Hal., Linnaea 42: 364. 1879. (Müller 1879a)
Orthotrichum erubescens Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 260. 1897. (Müller 1897g)
- =Orthotrichum fortunatii Thér., Bull. Acad. Int. Géogr. Bot. 19: 18. 1909. (Thériot 1909; Guo et al. 2007a)
- =Orthotrichum griffithii Mitt. ex Dixon, J. Bot. 49: 140. 1911. (Dixon 1911; Wang & Jia 2020)
- =Orthotrichum crispifolium Broth., Symb. Sin. 4: 69. 1929. (Brotherus 1929; Wang & Jia 2020)
- =Orthotrichum amabile Toyama, J. Jap. Bot. 14: 622. 1938. (Lewinsky 1992)
- =Orthotrichum sinuosum Lewinsky, J. Hattori Bot. Lab. 72: 73. 1992. (Lewinsky 1992; Wang & Jia 2020)
Orthotrichum euryphyllum Venturi, Bot. Centralbl. 44(13): 417. 1890. (Röll 1890b)
- =Orthotrichum epapillosum E. Lawton & F.J. Herm., Bryologist 76: 437. 1973. (Lawton & Hermann 1973; Lewinsky-Haapasaari & Norris 1998)
Orthotrichum flowersii Vitt, Bryologist 74(2): 159. 1971. (Vitt 1971)
Orthotrichum franciscanum F. Lara, R. Medina & Garilleti, Taxon 62(6): 1144. 2013. (Medina et al. 2013)
Orthotrichum freyanum Goffinet, W.R. Buck & M.A. Wall, Nova Hedwigia Beih. 131: 6. 2007. (Goffinet et al. 2007)
Orthotrichum gigantosporum Lewinsky, Lindbergia 14: 183. 1988[1989]. (Lewinsky 1988)

Replaced synonym: Orthotrichum macrosporum Lewinsky, Lindbergia 10: 91. 1984[1985], nom. illeg. (Lewinsky 1984b)
Orthotrichum hallii Sull. & Lesq., Icon. Musc. Suppl.: 63. 1874. (Sullivant 1874)
Orthotrichum handiense F. Lara, Garilleti & Mazimpaka, Bryologist 102: 619. 1999[2000]. (Lara et al. 1999a)
Orthotrichum heteromallum Schwägr., Bryol. Univ. 1: 297. 1826. (Bridel 1826)

Replaced synonym: Orthotrichum heterophyllum Brid., Muscol. Recent. Suppl. 4: 111. 1819[1818], nom. illeg. (Bridel 1819)
Orthotrichum hispanicum F. Lara, Garilleti & Mazimpaka, J. Bryol. 22: 263. 2000. (Lara et al. 2000)
Orthotrichum hooglandii E.B. Bartram, Rev. Bryol. Lichénol. 30: 194. 1962. (Bartram 1961)
Orthotrichum hybridum H. Philib. ex Podp., Consp. Musc. Eur.: 479. 1954. (Podpěra 1954)
Orthotrichum hyperboreum Fedosov & Ignatova, Arctoa 26(2): 148. 2017. (Fedosov et al. 2017)
Orthotrichum ibukiense Toyama, J. Jap. Bot. 14: 620. 1938. (Toyama 1938)
Orthotrichum jetteae B.H. Allen, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 639. 2002. (Allen 2002)

Replaced synonym: Orthomitrium tuberculatum Lewinsky & Crosby, Novon 6: 2. 1996. (Lewinsky-Haapasaari & Crosby 1996)
Orthotrichum karoo F. Lara, Garilleti & Mazimpaka, Bryologist 112: 195. 2009. (Lara et al. 2009a)
Orthotrichum laxum Lewinsky, Lindbergia 24: 29. 1999. (Lewinsky-Haapasaari 1999a)
Orthotrichum leblebicii Erdağ, Kürschner & Parolly, Nova Hedwigia 78. f. 1–2: 518. 2004. (Erdağ et al. 2004)
Orthotrichum leikipiae Müll. Hal., Flora 73: 483. 1890. (Müller 1890)
Orthotrichum leiothecium Müll. Hal., Bot. Zeitung (Berlin) 20: 350. 1862. (Müller 1862)

≡Ulota leiothecia (Müll. Hal.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 161. 1874. (Jaeger 1874)
Orthotrichum lescurii Austin, Musci Appalach.: 163. 1870. (Austin 1870; Atwood & Allen 2009)

≡Orthotrichum cupulatum var. minus Sull., Icon. Musc. Suppl.: 61. 1874. (Sullivant 1874; Crum & Anderson 1981) ≡Orthotrichum anomalum var. minus (Sull.) Rau & E. Britton, Final Rep. State Geol. Geol. Surv. New Jersey 2(1): 331. 1889. ≡Orthotrichum strangulatum f. lescurii (Austin) Vitt, Bryophyt. Biblioth. 1: 137. 1973. (Vitt 1973a)
Orthotrichum letourneuxii Besch., Cat. Mouss. Algérie: 19. 1882. (Bescherelle 1882)
Orthotrichum liliputanum Broth., Biblioth. Bot. 87: 63. 1916. (Herzog 1916a)
Orthotrichum macrocephalum F. Lara, Garilleti & Mazimpaka, Bryologist 97: 402. 1994. (Lara et al. 1994)
Orthotrichum malacothecium Müll. Hal., Linnaea 43: 444. 1882. (Müller 1882)
Orthotrichum mazimpakanum Garilleti & F. Lara, Bryologist 114(4): 351. 2011. (Garilleti et al. 2011)
Orthotrichum meyenianum Hampe, Syn. Musc. Frond. 2: 639. 1851. (Müller 1851)
Orthotrichum microcarpum De Not., Erb. Crittog. Ital. 19: 915. 1863. (De Notaris 1863)
- =Orthotrichum pallens var. parvum Venturi, Hedwigia 12: 21. 1873. (Ochyra et al. 2003)
- =Orthotrichum obscurum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 12. 1885. (Grönvall 1885; Wijk et al. 1964) ≡Orthotrichum microcarpum var. obscurum (Grönvall) Medelius, Förteckn. Skand. Växt., Moss. (ed. 2): 41. 1937. (Weimarck 1937)
- =Orthotrichum pallens var. pusillum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 15. 1887, nom. illeg. (Grönvall 1885; Wijk et al. 1969)
- =Orthotrichum valesiacum H. Philib. & J.J. Amann, Beitr. Kryptogamenfl. Schweiz 7(2): 52. 1933. (Wijk et al. 1964) ≡Orthotrichum microcarpum subsp. valesiacum (H. Philib. & J.J. Amann) Podp., Consp. Musc. Eur.: 474. 1954. (Podpěra 1954)
Orthotrichum moravicum Plášek & Sawicki, Bryologist 112: 329. 2009. (Plášek et al. 2009)
Orthotrichum norrisii F. Lara, R. Medina & Garilleti, Bryologist 111(4): 670. 2008. (Medina et al. 2008)
Orthotrichum obtusatum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 439. 1895. (Brown 1895)
Orthotrichum ohioense Sull. & Lesq., Musci Appalach.: 169. 1870. (Austin 1870)
- =Orthotrichum citrinum Sull. & Lesq., Musci Appalach.: 31 [no. 170]. 1870. (Austin 1870; Vitt 1973a) ≡Orthotrichum ohioense var. citrinum (Sull. & Lesq.) Lesq. & James, Man. Mosses N. America: 171. 1884. (Lesquereux & James 1884)
Orthotrichum pallens Bruch ex Brid., Bryol. Univ. 1(2): 788. 1827. (Bridel 1827a)

≡Dorcadion pallens (Bruch ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum immersum Brid., Bryol. Univ. 1: 786. 1827. (Bridel 1827a; Lewinsky 1993a) ≡Orthotrichum pallens var. immersum (Brid.) Müll. Hal., Syn. Musc. Frond. 1: 701. 1849. (Müller 1849)
- =Orthotrichum scopulorum Lindb., Musci Novi Scand.: 257. 1868. (Wijk et al. 1964) ≡Dorcadion pallens var. scopulorum (Lindb.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum pallens var. scopulorum (Lindb.) Bom. & Broth., Herb. Mus. Fenn. (ed. 2), Musci: 54. 1894. (Bomansson & Brotherus 1894) ≡Orthotrichum pallens subsp. scopulorum (Lindb.) Kindb., Eur. N. Amer. Bryin. 2: 312. 1897[1898]. (Kindberg 1897) ≡Orthotrichum arnellii var. scopulorum (Lindb.) W. Krieg., Lotos 56: 319. 1908, nom. illeg.
- =Orthotrichum pallens var. crispatulum Venturi, Hedwigia 12: 21. 1873. (Podpěra 1954)
- =Orthotrichum latifolium Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 13. 1885. (Grönvall 1885; Wijk et al. 1964) ≡Orthotrichum pallens var. latifolium (Grönvall) J.J. Amann, Beitr. Kryptogamenfl. Schweiz 7(2): 52. 1933.
- =Orthotrichum arnellii Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 15. 1885. (Grönvall 1885; Lewinsky 1993a) ≡Orthotrichum pallens subsp. arnellii (Grönvall) J.J. Amann, Fl. Mouss. Suisse 2: 156. 1918. (Amann & Meylan 1918)
- =Orthotrichum pallidum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 15. 1885, nom. illeg. (Grönvall 1885; Wijk et al. 1964) ≡Dorcadion pallidum Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 95. 1890. (Lindberg & Arnell 1890; Wijk et al. 1962) ≡Orthotrichum pallens var. pallidum (Lindb. & Arnell) J.J. Amann, Fl. Mouss. Suisse: 155. 1918. (Amann & Meylan 1918) ≡Orthotrichum pallens subsp. pallidum (Lindb. & Arnell) Giacom., Ist. Bot. Reale Univ. Reale Lab. Crittog. Pavia, Atti 4: 248. 1947.
- =Orthotrichum aurantiacum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 16. 1885. (Grönvall 1885; Lewinsky 1993a) ≡Orthotrichum arnellii var. aurantiacum (Grönvall) Medelius, Förteckn. Skand. Växt., Moss. (ed. 2): 40. 1937. (Weimarck 1937)
- =Orthotrichum gevaliense Grönvall, Bot. Not. 1886: 41. 1886. (Lewinsky 1993a)
- =Orthotrichum pallens var. commune Venturi, Muscol. Gall.: 189. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum pallens var. crispulum Venturi, Muscol. Gall.: 189. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum pallens var. brotheri Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 7. 1887. (Podpěra 1954)
- =Orthotrichum pallens var. cuspidatum Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 7. 1887. (Podpěra 1954)
- =Orthotrichum boreale Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 8. 1887. (Lewinsky 1993a) ≡Orthotrichum arnellii var. boreale (Grönvall) Medelius, Förteckn. Skand. Växt., Moss. (ed. 2): 40. 1937. (Weimarck 1937)
- =Orthotrichum rufescens Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 8. 1887, nom. illeg. (Lewinsky 1993a)
- =Orthotrichum paradoxum Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 179. 1889. (Lewinsky 1993a) ≡Orthotrichum pallens subsp. paradoxum (Grönvall) J.J. Amann, Fl. Mouss. Suisse 2: 156. 1918. (Amann & Meylan 1918) ≡Orthotrichum pallens var. paradoxum (Grönvall) Düll, Bryol. Beitr. 5: 152. 1985.
- =Orthotrichum paradoxum var. leucomitrioides Limpr., Laubm. Deutschl. 2: 62. 1890. (Limpricht 1885–1903) ≡Orthotrichum pallens var. leucomitrioides (Limpr.) J.J. Amann, Fl. Mouss. Suisse 2: 156. 1918. (Amann & Meylan 1918)
- =Orthotrichum pallens var. saxicola Burchard, Hedwigia 31: 30. 1892. (Lewinsky 1993a)
- =Orthotrichum pallens var. rivulare Meyl., Fl. Mouss. Suisse 2: 156. 1918. (Amann & Meylan 1918)
Orthotrichum pallens var. crenulatum Vitt, Bryologist 74(2): 161. 1971. (Vitt 1971; Lara et al. 2016)
Orthotrichum pallens var. johnseniae Vitt, Bryologist 74(2): 162. 1971. (Vitt 1971; Lara et al. 2016)
Orthotrichum pallens Bruch ex Brid. var. pallens
Orthotrichum pamiricum Plášek & Sawicki, Turk. J. Bot. 38(4): 755. 2014. (Plášek et al. 2014)
Orthotrichum parvulum Mitt., J. Linn. Soc., Bot. 8: 25. 1865[1864]. (Mitten 1864a; Atwood & Allen 2009)

≡Orthotrichum cupulatum var. parvulum (Mitt.) Sull., Icon. Musc. Suppl.: 61. 1874. (Sullivant 1874)
Orthotrichum patens Bruch ex Brid., Bryol. Univ. 1: 787. 1827. (Bridel 1827a)

≡Orthotrichum affine var. patens (Bruch ex Brid.) Garov., Enum. Musc. Austria Inf.: 21. 1840. ≡Orthotrichum stramineum var. patens (Bruch ex Brid.) Venturi, Hedwigia 12: 29. 1873. ≡Dorcadion patens (Bruch ex Brid.) Bryhn, Nyt Mag. Naturvidensk. 31: 111. 1887. ≡Orthotrichum stramineum subsp. patens (Bruch ex Brid.) Giacom., Ist. Bot. Reale Univ. Reale Lab. Crittog. Pavia, Atti 4: 248. 1947.
Orthotrichum pellucidum Lindb., Öfvers. Kongl. Vetensk.-Akad. Förh. 23(10): 549. 1866[1867]. (Lindberg 1866)

≡Orthotrichum anomalum var. pellucidum (Lindb.) Venturi, Rev. Bryol. 9: 59. 1882. ≡Orthotrichum cupulatum var. pellucidum (Lindb.) Podp., Consp. Musc. Eur.: 464. 1954. (Podpěra 1954)
- =Orthotrichum jamesianum Sull., Botany (Fortieth Parallel) 18(5): 401. 1871. (James 1871; Lewinsky 1993a) ≡Orthotrichum cupulatum var. jamesianum (Sull.) E. Lawton, Moss Fl. Pacif. N.W.: 221. 1971. (Lawton 1971)
Orthotrichum penicillatum Mitt., J. Linn. Soc., Bot. 12: 185. 1869. (Mitten 1869)
Orthotrichum perexiguum Dusén ex Lewinsky, Lindbergia 10: 89. 1984[1985]. (Lewinsky 1984b)
Orthotrichum persimile F. Lara, R. Medina & Garilleti, Taxon 61(6): 1193. 2012. (Medina et al. 2012)
Orthotrichum philibertii Venturi, Rev. Bryol. 5: 45. 1878. (Venturi 1878; Lewinsky-Haapasaari 1995a)

≡Orthotrichum schimperi var. philibertii (Venturi) Boulay, Musc. France, Mousses: 339. 1884. (Boulay 1884) ≡Orthotrichum pumilum var. philibertii (Venturi) Venturi, Muscol. Gall.: 180. 1887. (Husnot 1884–1894)
Orthotrichum pilosissimum R. Medina, F. Lara & Garilleti, Bryologist 114(2): 317. 2011. (Medina et al. 2011)
Orthotrichum pulchellum Brunt., Bot. Guide Northumberland & Durham 2: 23. 1807. (Winch & Thornhill 1807)

≡Dorcadion pulchellum (Brunt.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum stenocarpum Brid., Bryol. Univ. 1: 271. 1826. (Bridel 1826; Wijk et al. 1964)
- =Orthotrichum hendersonii Renauld & Cardot, Bot. Gaz. 15: 42. 1890. (Medina et al. 2012)
- =Orthotrichum pulchellum var. leucodon Venturi, Bot. Centralbl. 44: 419. 1890. (Grout 1933-1940)
- =Didymodon angustifolius Warnst., Beih. Bot. Centralbl. 16: 239. 1904, nom. dub. (Jiménez 2006) ≡Barbula trifaria var. angustifolia (Warnst.) Podp., Consp. Musc. Eur.: 205. 1954. (Podpěra 1954) ≡Didymodon trifarius var. angustifolius (Warnst.) Wijk & Margad., Taxon 7: 289. 1958. (Wijk & Margadant 1958) ≡Trichostomopsis angustifolia (Warnst.) R.H. Zander, Framew. Post-Phylogenet. Syst.: 93. 2013. (Zander 2013)
- =Orthotrichum pulchellum var. groutii E. Lawton, Moss Fl. Pacif. N.W.: 225. 1971. (Lawton 1971; Vitt 2014)
Orthotrichum pumilum Sw., Monthly Rev. 34: 538. 1801. (Anonymous 1801)

≡Orthotrichum affine var. pumilum (Sw.) Brid., Muscol. Recent. Suppl. 2: 7. 1812. (Bridel 1812) ≡Dorcadion pumilum (Sw.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum tenellum var. pumilum (Sw.) Boulay, Musc. France, Mousses: 335. 1884. (Boulay 1884)
- =Orthotrichum fallax Bruch ex Brid., Bryol. Univ. 1: 787. 1827. (Bridel 1827a; Ignatov & Ignatova 2003) ≡Orthotrichum affine var. fallax (Bruch ex Brid.) Hampe, Flora 20: 280. 1837. ≡Orthotrichum pumilum var. fallax (Bruch ex Brid.) J. Kickx f., Fl. Crypt. Flandres 1: 141. 1867. (Kickx 1867) ≡Orthotrichum pumilum subsp. fallax (Bruch ex Brid.) Bertsch, Moosfl.: 84. 1949. (Bertsch 1949)
- =Orthotrichum fallax var. truncatulum Austin, Bull. Torrey Bot. Club 6: 344. 1879. (Crum & Anderson 1981) ≡Orthotrichum schimperi var. truncatulum (Austin) Paris, Index Bryol. (ed. 2) 3: 343. 1905. (Paris 1904-1906)
- =Orthotrichum brachytrichum Schimp. ex Lesq. & James, Proc. Amer. Acad. Arts 14: 140. 1879. (Vitt 1973a)
- =Orthotrichum pumilum var. commune Venturi, Muscol. Gall.: 179. 1887. (Husnot 1884–1894; Wijk et al. 1964) ≡Orthotrichum fallax var. commune (Venturi) Demaret, Bull. Jard. Bot. État Bruxelles 17: 352. 1945.
- =Orthotrichum pumilum var. americanum Venturi, Muscol. Gall.: 180. 1887. (Husnot 1884–1894; Crum & Anderson 1981)
- =Orthotrichum pumilum var. molle Venturi, Muscol. Gall.: 180. 1887. (Husnot 1884–1894) ≡Orthotrichum fallax var. molle (Venturi) Podp., Consp. Musc. Eur.: 477. 1954. (Podpěra 1954)
- =Orthotrichum pumilum var. obscurum Venturi, Muscol. Gall.: 180. 1887. (Husnot 1884–1894) ≡Orthotrichum fallax var. obscurum (Venturi) Podp., Consp. Musc. Eur.: 477. 1954. (Podpěra 1954)
- =Orthotrichum kaurinii Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 10. 1887. (Lewinsky 1993c)
- =Orthotrichum pumilum var. recurvum Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 177. 1889. (Grönvall 1889)
Orthotrichum pungens Mitt., J. Linn. Soc., Bot. 12: 184. 1869. (Mitten 1869)
- =Orthotrichum aristatum Hampe, Linnaea 32: 145. 1863, nom. illeg. (Hampe 1863; Lewinsky 1984b)
Orthotrichum pusillum Mitt., J. Linn. Soc., Bot. 8: 25. 1865[1864]. (Mitten 1864a)
- =Orthotrichum psilocarpum James, Icon. Musc.: 58. 1864. (Sullivant 1864; Crum & Anderson 1981)
Orthotrichum recurvifolium Hook. & Grev., Edinburgh J. Sci. 1: 120. 1824. (Hooker & Greville 1824)

≡Macromitrium recurvifolium (Hook. & Grev.) Brid., Bryol. Univ. 1: 740. 1826. (Bridel 1826)
Orthotrichum revolutum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 261. 1897. (Müller 1897g)
Orthotrichum rivulare Turner, Muscol. Hibern. Spic.: 96. 1804. (Turner 1804)
- =Orthotrichum rivulare var. dentatum Venturi, Rev. Bryol. 23: 60. 1896. (Geheeb 1896; Vitt & Nimis 1987)
Orthotrichum robustum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 422. 1895. (Brown 1895)
Orthotrichum rogeri Brid., Muscol. Recent. Suppl. 2: 9. 1812. (Bridel 1812)

≡Orthotrichum affine var. obtusifolium Arn., Disp. Méth. Mousses: 17. 1825. ≡Orthotrichum obtusifolium var. rogeri (Brid.) Hampe, Flora 20: 280. 1837. ≡Orthotrichum pumilum var. rogeri (Brid.) Husn., Fl. Mousses Nord. Ouest: 107. 1873. (Husnot 1873) ≡Dorcadion rogeri (Brid.) Lindb., Musci Scand.: 44. 1879. (Lindberg 1879) ≡Orthotrichum pallens subsp. rogeri (Brid.) Kindb., Eur. N. Amer. Bryin. 2: 312. 1897[1898], nom. illeg. (Kindberg 1897)
- =Orthotrichum rogeri var. auridens Schimp., Musci Eur. Nov. 1–2: Monogr. 9. 1864. (Schimper 1864-1866; Podpěra 1954)
- =Orthotrichum ticinense De Not., Atti Reale Univ. Genova 1: 310. 1869. (Wijk et al. 1964)
- =Orthotrichum subalpinum Limpr., Jahresber. Schles. Ges. Vaterl. Cult. 60: 234. 1883. (Wijk et al. 1964)
- =Orthotrichum rogeri var. commune Venturi, Muscol. Gall.: 187. 1887. (Husnot 1884–1894)
- =Orthotrichum rogeri var. longisetum Meyl., Fl. Mouss. Suisse 2: 391. 1918. (Amann et al. 1918)
Orthotrichum scanicum Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 13. 1885. (Grönvall 1885)

≡Orthotrichum leucomitrium var. scanicum (Grönvall) Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 11. 1887, nom. illeg.
- =Orthotrichum leucomitrium Bruch & Schimp., Bryol. Eur. 3: 68. 1837, nom. illeg. (Bruch & Schimper 1837; Medina et al. 2009)
- =Orthotrichum leucomitrium var. elatum Venturi, Hedwigia 12: 24. 1873. (Wijk et al. 1964)
- =Orthotrichum holmenii Lewinsky, Bryologist 99: 1. 1996. (Lewinsky-Haapasaari 1996; Medina et al. 2009)
- =Orthotrichum lewinskyae F. Lara, Garilleti & Mazimpaka, J. Bryol. 19: 457. 1997. (Garilleti et al. 1997; Medina et al. 2009)
Orthotrichum schimperi Hammar, Monogr. Orthotrich. Ulot. Suec.: 9. 1852. (Hammar 1852; Lara et al. 2009b)

Replaced synonym: Orthotrichum pumilum Bruch & Schimp., Bryol. Eur. 3: 56 (fasc. 2–3, Mongr. 14). 1837, nom. illeg. (Bruch & Schimper 1837)

≡Dorcadion schimperi (Hammar) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879; Lara et al. 2009b) ≡Orthotrichum pumilum var. schimperi (Hammar) Hinn., Ann. Univ. Turku., Ser. A2, Biol.-Geogr.-Geol. 58: 33. 1976. (Hinneri 1976)
- =Orthotrichum schimperi var. majus Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 11. 1885. (Grönvall 1885) ≡Dorcadion schimperi var. majus (Grönvall) Tolf, Bih. Kongl. Svenska Vetensk.-Akad. Handl. 16 Afd. 3(4): 72. 1891. (Tolf 1891)
- =Orthotrichum schimperi var. intermedium Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 10. 1887. (Grönvall 1887)
- =Orthotrichum schimperi var. parvulum Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 176. 1889. (Grönvall 1889)
- =Orthotrichum schimperi var. plicatum Grönvall, Öfvers. Kongl. Vetensk.-Akad. Förh. 46: 176. 1889. (Grönvall 1889)
Orthotrichum schofieldii (B.C. Tan & Y. Jia) B.H. Allen, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 639. 2002. (Allen 2002)

Basionym: Orthomitrium schofieldii B.C. Tan & Y. Jia, J. Hattori Bot. Lab. 82: 313. 1997. (Tan & Jia 1997)
Orthotrichum sharpii H. Rob., Bryologist 67: 449. 1964. (Robinson 1964; Lara et al. 2016)
Orthotrichum shevockii Lewinsky & D.H. Norris, Bryologist 101(3): 435. 1998. (Lewinsky-Haapasaari 1998)
- =Orthotrichum kellmanii D.H. Norris, Shevock & Goffinet, Bryologist 107(2): 210. 2004. (Norris et al. 2004; Vigalondo et al. 2019b)
Orthotrichum sibiricum (Grönvall ex Lindb. & Arnell) Warnst., Hedwigia 53: 312. 1913. (Warnstorf 1913; Fedosov et al. 2017)

Basionym: Dorcadion sibiricum Grönvall ex Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 96. 1890. (Lindberg & Arnell 1890; Fedosov et al. 2017)
Orthotrichum spiculatum F. Lara, Garilleti & Mazimpaka, Bot. J. Linn. Soc. 155: 477. 2007. (Lara et al. 2007)
Orthotrichum sprucei Mont., London J. Bot. 4: 186. 1845. (Spruce 1845)
Orthotrichum stellatum Brid., Bryol. Univ. 1(1): 274. 1826. (Bridel 1826)
- =Orthotrichum braunii Bruch & Schimp., Bryol. Eur. 3: 58. 1837. (Bruch & Schimper 1837; Vitt 1973a)
Orthotrichum stramineum Hornsch. ex Brid., Bryol. Univ. 1(2): 789. 1827. (Bridel 1827a)

≡Orthotrichum patens var. stramineum (Hornsch. ex Brid.) Hampe, Flora 20: 279. 1837. ≡Dorcadion stramineum (Hornsch. ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum umbonatum Plaubel ex Brid., Bryol. Univ. 1: 787. 1827. (Bridel 1827a; Wijk et al. 1964)
- =Orthotrichum stramineum var. defluens Venturi, Hedwigia 12: 19. 1873. (Garilleti et al. 2002) ≡Orthotrichum rogeri var. defluens (Venturi) Venturi, Muscol. Gall.: 187. 1887. (Husnot 1884–1894)
- =Orthotrichum stramineum var. firmum Venturi, Hedwigia 12: 19. 1873. (Garilleti et al. 2007)
- =Orthotrichum stramineum var. debilis Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 12. 1885. (Grönvall 1885; Podpěra 1954)
- =Orthotrichum stramineum var. intermedium Venturi, Muscol. Gall. 183: 50. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum stramineum var. commune Venturi, Muscol. Gall.: 183. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum stramineum var. tenue Grönvall, Nya Bidr. Känned. Nord. Orthotrichum: 9. 1887. (Podpěra 1954)
- =Orthotrichum stramineum var. vexabile Limpr., Laubm. Deutschl. 2: 68. 1890. (Limpricht 1885–1903) ≡Orthotrichum vexabile (Limpr.) W. Krieg., Lotos 56: 319. 1908. (Wijk et al. 1964)
- =Orthotrichum stramineum var. intermedium Warnst., Krypt.-Fl. Brandenburg, Laubm. 2: 389. 1904, nom. illeg. (Warnstorf 1904–1906)
- =Orthotrichum praenubilum Stirt., Ann. Scott. Nat. Hist. 19: 242. 1910. (Wijk et al. 1964)
- =Orthotrichum pseudostramineum Dism., Arch. Bot. Bull. Mens. 3(10): 170. 1927. (Lewinsky 1993c)
- =Orthotrichum notabile Lewinsky, Lindbergia 20: 102. 1995[1996]. (Lewinsky-Haapasaari 1995b; Wang & Jia 2020)
Orthotrichum strangulatum P. Beauv., Prodr. Aethéogam.: 81. 1805. (Palisot de Beauvois 1805)

≡Orthotrichum nudum var. strangulatum (P. Beauv.) Baehni, Candollea 8: 187. 1941.
- =Orthotrichum porteri Sull. & Lesq., Musci Appalach.: 28 [no. 161]. 1870. (Austin 1870; Crum & Anderson 1981) ≡Orthotrichum cupulatum var. porteri (Sull. & Lesq.) Sull., Icon. Musc. Suppl.: 61. 1874. (Sullivant 1874) ≡Orthotrichum lescurii subsp. porteri (Sull. & Lesq.) Kindb., Eur. N. Amer. Bryin. 2: 311. 1897[1898]. (Kindberg 1897)
- =Orthotrichum peckii Sull. & Lesq., Musci Appalach.: 29 [no. 162]. 1870. (Austin 1870; Vitt 1973a) ≡Orthotrichum cupulatum var. peckii (Sull. & Lesq.) Sull., Icon. Musc. Suppl.: 61. 1874. (Sullivant 1874) ≡Orthotrichum anomalum var. peckii (Sull. & Lesq.) Rau & E. Britton, Final Rep. State Geol. Geol. Surv. New Jersey 2(1): 331. 1889.
- =Orthotrichum strangulatum var. missouricum Holz. ex Grout, Moss Fl. N. Amer. 2: 123. 1935. (Grout 1933-1940; Crum & Anderson 1981)
Orthotrichum subexsertum Schimp. ex Müll. Hal., Bot. Zeitung (Berlin) 16: 164. 1858. (Müller 1858a)
Orthotrichum subpumilum E.B. Bartram ex Lewinsky, J. Hattori Bot. Lab. 72: 59. 1992. (Lewinsky 1992)
Orthotrichum tenellum Bruch ex Brid., Bryol. Univ. 1(2): 786. 1827. (Bridel 1827a; Medina et al. 2013)

≡Dorcadion tenellum (Bruch ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum ventricosum Nees, Muscol. Germ.: 360. 1833. (Huebener 1833; Lewinsky 1993c)
- =Orthotrichum australe Jur., Hedwigia 6: 145. 1867. (Lewinsky 1993c)
- =Orthotrichum tenellum var. meridionale Boulay, Musc. France, Mousses: 335. 1884. (Boulay 1884; Podpěra 1954)
- =Orthotrichum tenellum var. commune Venturi, Muscol. Gall.: 186. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum tenellum var. decipiens Venturi, Muscol. Gall.: 186. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum prasinellum Stirt., Ann. Scott. Nat. Hist. 19: 241. 1910. (Vitt 1973a)
- =Orthotrichum tenellum f. gemmiferum Barkman, Acta Bot. Neerl. 3: 130. 1954. (Agsteribbe et al. 1954)
Orthotrichum tortile Bruch, Nomencl. Bot. 2: 204. 1824. (Steudel 1824)
Orthotrichum trachymitrium Mitt., J. Linn. Soc., Bot. 12: 183. 1869. (Mitten 1869)
- =Orthotrichum patulum Mitt., J. Linn. Soc., Bot. 12: 184. 1869. (Mitten 1869; Lewinsky 1984b)
- =Orthotrichum emersulum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 123. 1897. (Müller 1897f; Lewinsky 1984b)
Orthotrichum transvaaliense Rehmann ex Sim, Trans. Roy. Soc. South Africa 15: 276. 1926. (Sim 1926)
Orthotrichum tristriatum Lewinsky, Lindbergia 15: 70. 1989[1990]. (Lewinsky 1989b)
Orthotrichum underwoodii F. Lara, Garilleti & Mazimpaka, Bryologist 104(2): 268. 2001. (Garilleti et al. 2001)
Orthotrichum undulatifolium Müll. Hal., Flora 71: 413. 1888. (Müller 1888)
Orthotrichum urnaceum Müll. Hal., Trudy Imp. S.-Peterburgsk. Bot. Sada 10(1): 259. 1887. (Kuntze 1887)
Orthotrichum urnigerum Myrin, Coroll. Fl. Upsal.: 71. 1833. (Myrin 1833)

≡Dorcadion urnigerum (Myrin) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879) ≡Orthotrichum cupulatum subsp. urnigerum (Myrin) Boulay, Musc. France, Mousses: 330. 1884. (Boulay 1884)
- =Orthotrichum urnigerum var. confertum Schimp., Syn. Musc. Eur.: 275. 1860. (Schimper 1860; Podpěra 1954) ≡Orthotrichum urnigerum f. confertum (Schimp.) Podp., Consp. Musc. Eur.: 465. 1954.
- =Orthotrichum schubartianum Lorentz, Verh. K.K. Zool.-Bot. Ges. Wien: 657. 1867. (Ignatov & Afonina 1992) ≡Orthotrichum urnigerum subsp. schubartianum (Lorentz) Venturi, Rev. Bryol. 8: 46. 1881. ≡Orthotrichum cupulatum var. schubartianum (Lorentz) Boulay, Musc. France, Mousses: 330. 1884. (Boulay 1884) ≡Orthotrichum urnigerum var. schubartianum (Lorentz) Venturi, Muscol. Gall.: 163. 1887. (Husnot 1884–1894)
- =Orthotrichum venturii De Not., Atti Reale Univ. Genova 1: 305. 1869. (Wijk et al. 1964) ≡Orthotrichum urnigerum var. venturii (De Not.) Venturi & Bott., Atti Soc. Crittog. Ital. 3: 80. 1884. ≡Orthotrichum cupulatum subsp. venturii (De Not.) Boulay, Musc. France, Mousses: 329. 1884. (Boulay 1884) ≡Orthotrichum schubartianum var. venturii (De Not.) Limpr., Laubm. Deutschl. 2: 50. 1890. (Limpricht 1885–1903) ≡Orthotrichum urnigerum subsp. venturii (De Not.) C.E.O. Jensen, Skand. Bladmossfl.: 355. 1939.
- =Orthotrichum schubartianum var. caespitosum Venturi, Rev. Bryol. 6: 8. 1879. (Garilleti et al. 2007)
- =Orthotrichum urnigerum var. laxum Venturi, Rev. Bryol. 8: 47. 1881. (Podpěra 1954) ≡Orthotrichum urnigerum f. laxum (Venturi) Podp., Consp. Musc. Eur.: 465. 1954.
- =Orthotrichum venturii var. caespitosum Venturi, Rev. Bryol. 8: 47. 1881. (Garilleti et al. 2007)
- =Orthotrichum imperfectum Müll. Hal., Bot. Centralbl. 16: 126. 1883. (Müller 1883b; Afonina 2004) ≡Dorcadion imperfectum (Müll. Hal.) Lindb. & Arnell, Kongl. Svenska Vetensk. Acad. Handl., n.s. 23(10): 99. 1890. (Lindberg & Arnell 1890; Afonina 2004)
- =Orthotrichum cupulatum var. pugetii Boulay, Musc. France, Mousses: 329. 1884. (Boulay 1884; Podpěra 1954) ≡Orthotrichum urnigerum f. pugetii (Boulay) Podp., Consp. Musc. Eur.: 465. 1954.
- =Orthotrichum urnigerum var. commune Venturi, Muscol. Gall.: 163. 1887. (Husnot 1884–1894; Podpěra 1954)
- =Orthotrichum schubartianum var. laetevirens Limpr., Laubm. Deutschl. 2: 49. 1890. (Limpricht 1885–1903) ≡Orthotrichum laetevirens (Limpr.) W. Krieg., Lotos 56: 320. 1908. (Wijk et al. 1964) ≡Orthotrichum urnigerum var. laetevirens (Limpr.) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 41. 1932. (Piccioli 1932)
- =Orthotrichum venturii var. himalajanum Venturi, Rev. Bryol. 22: 53. 1895. (Cardot 1895; Lewinsky 1992)
- =Orthotrichum schubartianum var. himalayanum Venturi, Rev. Bryol. 22: 58. 1895. (Venturi 1895; Lewinsky 1992)
- =Orthotrichum schubartianum var. papillosum Culm., Bull. Herb. Boissier 6: 427. 1898. (Podpěra 1954) ≡Orthotrichum urnigerum var. papillosum (Culm.) E. Piccioli, Trav. Inst. Bot. Univ. Neuchâtel 1: 41. 1932. (Piccioli 1932) ≡Orthotrichum urnigerum f. papillosum (Culm.) Podp., Consp. Musc. Eur.: 465. 1954.
- =Orthotrichum sourekii Pilous, Českoslov. Bot. Listy 4: 14. 1951. (Pilous 1951; Lewinsky 1993c)
Orthotrichum vermiferum Lewinsky, Lindbergia 24: 33. 1999. (Lewinsky-Haapasaari 1999b)
Orthotrichum vittii F. Lara, Garilleti & Mazimpaka, Bryologist 102: 53. 1999. (Lara et al. 1999b)
Pentastichella Müll. Hal., Oesterr. Bot. Z. 47: 421. 1897. (Müller 1897h; Draper et al. 2021)
- =Zygodon sect. Stenomitrium Mitt., J. Linn. Soc., Bot. 12: 230. 1869. (Mitten 1869) ≡Stenomitrium (Mitt.) Broth., Nat. Pflanzenfam. 1(3): 464. 1902, nom. illeg.
- =Pleurorthotrichum Broth., Öfvers. Finska Vetensk.-Soc. Förh. 47(15): 1. 1905. (Brotherus 1905; Draper et al. 2021)
Pentastichella chilensis (Broth.) F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 12(629035): 15. 2021. (Draper et al. 2021)

Basionym: Pleurorthotrichum chilense Broth., Öfvers. Finska Vetensk.-Soc. Förh. 47(15): 1. 1905. (Brotherus 1905; Draper et al. 2021)
Pentastichella pentasticha (Mont.) Müll. Hal. ex Cardot, Rev. Bryol. 40: 22. 1913. (Cardot 1913; Goffinet et al. 2004)

Basionym: Aulacomnium pentastichum Mont., Ann. Sci. Nat., Bot., sér. 3, 4: 103. 1845. (Montagne 1845)

≡Zygodon pentastichus (Mont.) Müll. Hal., Syn. Musc. Frond. 1: 675. 1849. (Müller 1849) ≡Stenomitrium pentastichum (Mont.) Broth., Nat. Pflanzenfam. I(3): 464. 1902.
- =Macromitrium poeppigii Duby, Mém. Soc. Phys. Genève 19: 295. 1868. (Duby 1868; Calabrese 2006)
- =Zygodon uncinatus Mitt., J. Linn. Soc., Bot. 12: 234. 1869. (Mitten 1869; Calabrese 2006) ≡Codonoblepharon uncinatum (Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 118. 1874. (Jaeger 1874; Calabrese 2006)
- =Pentastichella jaffuelii Thér., Revista Chilena Hist. Nat. 25: 301. 1921. (Thériot 1921b; Calabrese 2006)
- =Pentastichella pentasticha var. strictifolia Thér., Revista Chilena Hist. Nat. 28: 131. 1924. (Calabrese 2006) ≡Zygodon pentastichus var. strictifolius (Thér.) Malta, Gatt. Zygodon: 141. 1926. (Malta 1926)
- =Zygodon porteri var. crispatulus Thér., Revista Chilena Hist. Nat. 30: 351. 1926. ≡Zygodon pentastichus var. crispatulus (Thér.) Malta, Gatt. Zygodon: 140. 1926. (Malta 1926; Calabrese 2006)
- =Zygodon porteri Thér., Revista Chilena Hist. Nat. 30: 351. 1926. (Calabrese 2006)
Phragmidiolum Müll. Hal., Flora 24(11): 167. 1841. (Müller 1841a)
Phragmidiolum apicale Müll. Hal., Flora 24(11): 169. 1841. (Müller 1841a)
Phragmidiolum ramosum Müll. Hal., Flora 24(11): 168. 1841. (Müller 1841a)

≡Bryomyces muelleri Miq., Flora 24(21): 322. 1841, nom. illeg. (Miquel 1841) ≡Phragmidiolum sparsum Müll. Hal., Flora 24(36): 563. 1841, nom. illeg. (Müller 1841b)
Plenogemma Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 64: 172. 2015. (Plášek et al. 2015)
Plenogemma phyllantha (Brid.) Sawicki, Plášek & Ochyra, Acta Mus. Siles. Sci. Nat. 64: 172. 2015. (Plášek et al. 2015)

Basionym: Ulota phyllantha Brid., Muscol. Recent. Suppl. 4: 113. 1819[1818]. (Bridel 1819)

≡Orthotrichum phyllanthum (Brid.) Steud., Nomencl. Bot. 2: 304. 1824. (Steudel 1824) ≡Weissia phyllantha (Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum jutlandicum Brid., Bryol. Univ. 1: 296. 1826, nom. illeg. (Bridel 1826)
- =Orthotrichum fasciculare Brid., Bryol. Univ. 1: 790. 1827. (Bridel 1827a; Wijk et al. 1964)
- =Ulota maritima Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 84. 1892. (Macoun & Kindberg 1892; Flora of North America Editorial Committee 2014) ≡Weissia maritima (Müll. Hal. & Kindb.) E. Britton, Bull. Torrey Bot. Club 21: 72. 1894. (Anderson et al. 1990) ≡Orthotrichum maritimum (Müll. Hal. & Kindb.) Kindb., Eur. N. Amer. Bryin. 2: 308. 1897[1898]. (Kindberg 1897; Anderson et al. 1990)
- =Ulota phyllantha var. stricta W.E. Nicholson, J. Bot. 38: 134. 1900. (Dixon 1900; Podpěra 1954) ≡Weissia phyllantha var. stricta (W.E. Nicholson) Braithw., Brit. Moss Fl. 3: 237. 1905. (Braithwaite 1887-1905)
- =Ulota scotica Stirt., Ann. Scott. Nat. Hist. 14(54): 106. 1905. (Wijk et al. 1969)
Pseudomacromitrium D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 942. 2023. (Valente et al. 2023)
Pseudomacromitrium argutum (Hampe) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 943. 2023. (Valente et al. 2023)

Basionym: Macromitrium argutum Hampe, Linnaea 22: 581. 1849. (Hampe 1849; Valente et al. 2023)
- =Macromitrium proliferum Mitt., J. Linn. Soc., Bot. 12: 217. 1869. (Mitten 1869; Valente et al. 2020)
- =Macromitrium runcinatella Müll. Hal., Linnaea 42: 488. 1879. (Müller 1879b; Wijk et al. 1964)
- =Macromitrium nematosum E.B. Bartram, J. Washington Acad. Sci. 42: 181. 1952. (Bartram 1952; Valente et al. 2020)
Pseudomacromitrium carionis (Müll. Hal.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 943. 2023. (Valente et al. 2023)

Basionym: Macromitrium carionis Müll. Hal., Bull. Herb. Boissier 5: 199. 1897. (Müller 1897a; Valente et al. 2023)
Pseudomacromitrium cirrosum (Hedw.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 943. 2023. (Valente et al. 2023)

Basionym: Anictangium cirrosum Hedw., Sp. Musc. Frond.: 42. 1801. (Hedwig 1801; Valente et al. 2023)

≡Hedwigia cirrosa (Hedw.) Brid., J. Bot. (Schrader) 1800(1): 272. 1801. (Bridel 1801a; Valente et al. 2023) ≡Neckera cirrosa (Hedw.) F. Weber & D. Mohr, Index Mus. Pl. Crypt.: 2 [verso]. 1803. (Weber & Mohr 1803; Valente et al. 2023) ≡Anoectangium cirrosum (Hedw.) Schwägr., Sp. Musc. Frond., Suppl. 1, 1: 38. 1811. (Schwägrichen 1811; Valente et al. 2023) ≡Schlotheimia cirrosa (Hedw.) Brid., Muscol. Recent. Suppl. 2: 19. 1812. (Bridel 1812; Valente et al. 2023) ≡Orthotrichum cirrosum (Hedw.) Hook. & Grev., Edinburgh J. Sci. 1: 130. 1824. (Hooker & Greville 1824; Valente et al. 2023) ≡Macromitrium cirrosum (Hedw.) Brid., Bryol. Univ. 1: 316. 1826. (Bridel 1826; Valente et al. 2023)
- =Hypnum cirrhatum Brid., Muscol. Recent. 2(2): 185. 1801. (Bridel 1801b; Grout 1944)
- =Macromitrium schwaneckeanum Hampe, Linnaea 25: 360. 1852[1853]. (Florschütz-de Waard 2011)
- =Macromitrium praelongum Mitt., J. Linn. Soc., Bot. 12: 207. 1869. (Mitten 1869; Duarte Bello 1997)
- =Macromitrium microtheca Mitt., J. Linn. Soc., Bot. 12: 208. 1869. (Mitten 1869; Churchill et al. 2000)
- =Macromitrium jamaicense Mitt., J. Linn. Soc., Bot. 12: 209. 1869. (Mitten 1869; Duarte Bello 1997) ≡Macromitrium cirrosum var. jamaicense (Mitt.) Grout, Bryologist 47: 9. 1944. (Grout 1944)
- =Macromitrium laevisetum Mitt., J. Linn. Soc., Bot. 12: 214. 1869. (Mitten 1869; Churchill et al. 2000)
- =Macromitrium stenophyllum Mitt., J. Linn. Soc., Bot. 12: 215. 1869. (Mitten 1869; Churchill & Linares Castillo 1995) ≡Macromitrium cirrosum var. stenophyllum (Mitt.) Grout, Bryologist 47: 9. 1944. (Grout 1944)
- =Macromitrium barbense Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 157. 1893. (Allen 2002)
- =Macromitrium altipes Müll. Hal., Bull. Herb. Boissier 5: 559. 1897. (Müller 1897b; Crum & Bartram 1958)
- =Macromitrium erectopatulum Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 124. 1897. (Müller 1897f; Grout 1944)
- =Macromitrium erectopatulum var. grossirete Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 124. 1897. (Müller 1897f)
- =Macromitrium substrictifolium Müll. Hal., Bull. Herb. Boissier 6: 98. 1898. (Müller 1898a; Valente et al. 2020)
- =Macromitrium cubensicirrhosum Müll. Hal., Hedwigia 37: 236. 1898. (Müller 1898b; Duarte Bello 1997)
- =Macromitrium pseudocirrosum Müll. Hal., Hedwigia 37: 237. 1898. (Müller 1898b; Wijk et al. 1964)
- =Macromitrium werckleanum Thér., Recueil Publ. Soc. Havraise Études Diverses 88(4): 307. 1921. (Thériot 1921a; Allen 2002)
- =Macromitrium hoehnei Herzog, Arch. Bot. São Paulo 1(2): 63. 1924. (Herzog 1924; Valente et al. 2020)
- =Macromitrium mammillosum E.B. Bartram, Contr. U.S. Natl. Herb. 26: 87. 1928. (Bartram 1928; Churchill & Linares Castillo 1995)
- =Macromitrium costaricense E.B. Bartram, Contr. U.S. Natl. Herb. 26: 88. 1928. (Bartram 1928; Allen 2002)
Pseudomacromitrium guatemalense (Müll. Hal.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 943. 2023. (Valente et al. 2023)

Basionym: Macromitrium guatemalense Müll. Hal., Syn. Musc. Frond. 2: 644. 1851. (Müller 1851; Valente et al. 2023)
- =Macromitrium trianae Müll. Hal., Bot. Zeitung (Berlin) 15: 580. 1857. (Müller 1857a; Churchill & Linares Castillo 1995)
- =Macromitrium negrense Mitt., J. Linn. Soc., Bot. 12: 208. 1869. (Mitten 1869; Valente et al. 2020)
- =Macromitrium liberum Mitt., J. Linn. Soc., Bot. 12: 214. 1869. (Mitten 1869; Vitt 1994)
- =Macromitrium serrulatum Mitt., J. Linn. Soc., Bot. 12: 215. 1869. (Mitten 1869; Vitt 1994)
- =Macromitrium penicillatum Mitt., J. Linn. Soc., Bot. 12: 217. 1869. (Mitten 1869; Vitt 1994)
- =Macromitrium tortuosum Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 189. 1872. (Bescherelle 1872; Vitt 1994)
- =Macromitrium paucidens Müll. Hal., Linnaea 42: 487. 1879. (Müller 1879b; Grout 1944)
- =Macromitrium rhystophylllum Müll. Hal., Bull. Herb. Boissier 5: 198. 1897. (Müller 1897a; Grout 1944)
- =Macromitrium subreflexum Müll. Hal., Bull. Herb. Boissier 5: 198. 1897. (Müller 1897a; Grout 1944)
- =Macromitrium verrucosum E.B. Bartram, Contr. U.S. Natl. Herb. 26: 82. 1928. (Bartram 1928; Vitt 1994)
Pseudomacromitrium longifolium (Hook.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 944. 2023. (Valente et al. 2023)

Basionym: Orthotrichum longifolium Hook., Musci Exot. 1: pl. 44. 1818. (Hooker 1818; Valente et al. 2023)

≡Macromitrium longifolium (Hook.) Brid., Bryol. Univ. 1: 309, 738. 1826. (Bridel 1826; Valente et al. 2023) ≡Schlotheimia longifolia (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, 2(2): 147. 1827. (Schwägrichen 1827; Valente et al. 2023)
- =Macromitrium scabrisetum Wilson, Trans. Linn. Soc. London 20: 163. 1847. (Churchill et al. 2000)
- =Macromitrium longifolium var. brevifolium Müll. Hal., Syn. Musc. Frond. 2: 644. 1851. (Müller 1851)
- =Macromitrium flexuosum Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 189. 1872, nom. illeg. (Bescherelle 1872; Wijk et al. 1964)
- =Macromitrium muelleri Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 189. 1872, nom. illeg. (Bescherelle 1872; Wijk et al. 1964)
- =Macromitrium schimperi A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 129. 1874. (Jaeger 1874; Grout 1944)
- =Macromitrium denudatum A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 146. 1874. (Jaeger 1874; Grout 1944)
- =Macromitrium longifolium var. viridissimum Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 156. 1893. (Grout 1944)
- =Macromitrium scleropelma Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 31(1): 157. 1893. (Grout 1944)
- =Macromitrium homalacron Müll. Hal., Bull. Herb. Boissier 5: 197. 1897. (Müller 1897a; Vitt 1994)
- =Macromitrium haitense Thér., Rev. Bryol. Lichénol. 14: 15. 1944. (Thériot 1944; Allen 2002)
- =Macromitrium perfragile E.B. Bartram, J. Washington Acad. Sci. 42: 181. 1952. (Bartram 1952; Valente et al. 2020)
Pseudomacromitrium podocarpi (Müll. Hal.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 944. 2023. (Valente et al. 2023)

Basionym: Macromitrium podocarpi Müll. Hal., Bull. Herb. Boissier 6: 96. 1898. (Müller 1898a; Valente et al. 2023)
Pseudomacromitrium punctatum (Hook. & Grev.) D.V. Valente, P.E.A.S. Câmara & D.F. Peralta, Brazil. J. Bot. 46: 944. 2023. (Valente et al. 2023)

Basionym: Orthotrichum punctatum Hook. & Grev., Edinburgh J. Sci. 1: 119. 1824. (Hooker & Greville 1824; Valente et al. 2023)

≡Macromitrium punctatum (Hook. & Grev.) Brid., Bryol. Univ. 1: 739. 1826. (Bridel 1826; Valente et al. 2023)
- =Schlotheimia brachyrhyncha Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 53. 1826. (Schwägrichen 1826; Vitt 1994) ≡Macromitrium brachyrhynchum (Schwägr.) Schimp., Syn. Musc. Frond. 1: 741. 1849. (Müller 1849; Vitt 1994)
- =Macromitrium pentastichum Müll. Hal., Linnaea 21: 186. 1848. (Müller 1848b; Vitt 1994)
- =Macromitrium osculatianum De Not., Mem. Reale Accad. Sci. Torino, ser. 2, 18: 449. 1859. (De Notaris 1859; Churchill et al. 2000)
- =Macromitrium sartorii Müll. Hal., Linnaea 38: 641. 1874. (Müller 1874d; Goffinet 1993)
- =Macromitrium sartorii var. gracilescens Müll. Hal., Linnaea 38: 641. 1874. (Müller 1874d)
- =Macromitrium sartorii var. robustius Müll. Hal., Linnaea 38: 641. 1874. (Müller 1874d)
- =Macromitrium pentagonum Müll. Hal., Malpighia 10: 513. 1896. (Müller 1896b; Vitt 1994)
- =Macromitrium dentatulum Müll. Hal., Hedwigia 37: 237. 1898. (Müller 1898b; Churchill & Linares Castillo 1995)
- =Macromitrium hirtellum E.B. Bartram, Contr. U.S. Natl. Herb. 26: 86. 1928. (Bartram 1928; Vitt 1979a)
Pulvigera Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 64: 171. 2015. (Plášek et al. 2015)

Replaced synonym: Orthotrichum sect. Lyelliana Schimp., Syn. Musc. Eur. (ed. 2): 336. 1876. (Schimper 1876)
Pulvigera howei (Renauld & Cardot) F. Lara, Draper & Garilleti, Bot. J. Linn. Soc. 193(2): 196. 2020. (Lara et al. 2020)

Basionym: Orthotrichum lyellii var. howei Renauld & Cardot, Bot. Gaz. 30: 20. 1900. (Cardot & Thériot 1900)
Pulvigera lyellii (Hook. & Taylor) Plášek, Sawicki & Ochyra, Acta Mus. Siles. Sci. Nat. 64: 171. 2015. (Plášek et al. 2015)

Basionym: Orthotrichum lyellii Hook. & Taylor, Muscol. Brit.: 76. 1818. (Hooker & Taylor 1818)

≡Dorcadion lyellii (Hook. & Taylor) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum lyellii subsp. strictum Venturi, Bot. Centralbl. 44: 419. 1890. ≡Orthotrichum papillosum subsp. strictum (Venturi) Kindb., Eur. N. Amer. Bryin. 2: 304. 1897[1898]. (Kindberg 1897) ≡Orthotrichum strictum (Venturi) Broth., Nat. Pflanzenfam., ed. 2, 11: 20. 1925, nom. illeg. (Brotherus 1925; Vitt 1973a)
- =Orthotrichum verrucatum Müll. Hal., Bull. Herb. Boissier 5: 850. 1897. (Müller 1897c; Lewinsky 1993b)
- =Orthotrichum lyellii var. crispatum Schiffn., Hedwigia 41: 286. 1902. (Lara et al. 2020)
- =Orthotrichum lyellii var. laeve Barkman, Acta Bot. Neerl. 3(1): 130. 1954. (Agsteribbe et al. 1954; Lara et al. 2020)
Pulvigera papillosa (Hampe) F. Lara, Draper & Garilleti, Bot. J. Linn. Soc. 193(2): 198. 2020. (Lara et al. 2020)

Basionym: Orthotrichum papillosum Hampe, Linnaea 30: 458. 1860. (Hampe 1860a; Lara et al. 2020)

≡Orthotrichum lyellii var. papillosum (Hampe) Sull. & Lesq., Musci Bor.-Amer. (ed. 2): [Scheda] 33. 1865. (Sullivant 1865)
- =Orthotrichum lyellioides Kindb., Rev. Bryol. 23: 21. 1896. (Kindberg 1896; Lara et al. 2020)
Pulvigera pringlei (Müll. Hal.) F. Lara, Draper & Garilleti, Bot. J. Linn. Soc. 193(2): 197. 2020. (Lara et al. 2020)

Basionym: Orthotrichum pringlei Müll. Hal., Bull. Torrey Bot. Club 13: 120. 1886. (Müller 1886a; Lara et al. 2020)

≡Orthotrichum lyellii var. pringlei (Müll. Hal.) Macoun & Kindb., Cat. Canad. Pl., Musci: 92. 1892. (Macoun & Kindberg 1892) ≡Orthotrichum lyellii f. pringlei (Müll. Hal.) Grout, Moss Fl. N. Amer. 2: 118. 1935. (Grout 1933-1940)
- =Pleurorthotrichum nukahivense Dixon, Notes Roy. Bot. Gard. Edinburgh 20: 102. 1948. (Dixon 1948; Lara et al. 2020)
Rehubryum F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 13(882960): 10. 2022. (Draper et al. 2022)
Rehubryum bellii (Malta) F. Lara, Garilleti & Draper, Frontiers Pl. Sci. 13(882960): 10. 2022. (Draper et al. 2022; Matanov et al. 2023)

Basionym: Ulota bellii Malta, Acta Horti Bot. Univ. Latv. 7: 15. 1932[1933]. (Malta 1932; Draper et al. 2022)
- =Ulota bellii var. longicolla Malta, Acta Horti Bot. Univ. Latv. 7: 16. 1932[1933]. (Malta 1932; Matanov et al. 2023)
Schlotheimia Brid., Muscol. Recent. Suppl. 2: 16. 1812. (Bridel 1812)
- =Ptychodes F. Weber, Tab. Calyptr. Operc.: 3. 1813[1814]. (Weber 1813; Mohr 1806)
- =Schizodon Sw., Adnot. Bot.: 91. 1829, nom. illeg. (Swartz 1829)
Schlotheimia affinis Müll. Hal., Syn. Musc. Frond. 1: 761. 1849. (Müller 1849)
Schlotheimia angulosa (P. Beauv.) Dixon, Ann. Bryol. 9: 141. 1937. (Dixon & Fleischer 1937)

Basionym: Orthotrichum angulosum P. Beauv., Prodr. Aethéogam.: 80. 1805. (Palisot de Beauvois 1805)
- =Schlotheimia quadrifida Brid., Muscol. Recent. Suppl. 2: 18. 1812, nom. illeg. (Bridel 1812) ≡Orthotrichum quadrifidum Hook. & Grev., Edinburgh J. Sci. 1: 128. 1824, nom. illeg. (Hooker & Greville 1824) ≡Macromitrium quadrifidum Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845, nom. illeg. (Müller 1845b)
- =Schizodon acuminatum Sw., Adnot. Bot.: 93. 1829. (Swartz 1829; Wijk et al. 1967)
Schlotheimia angustata Mitt., J. Linn. Soc., Bot. 12: 223. 1869. (Mitten 1869)
- =Schlotheimia sarcotricha Müll. Hal., Bull. Herb. Boissier 5: 196. 1897. (Müller 1897a; Allen 2002)
Schlotheimia appressifolia Mitt., J. Linn. Soc., Bot. 12: 221. 1869. (Mitten 1869)
- =Schlotheimia fasciculata Mitt., J. Linn. Soc., Bot. 12: 221. 1869. (Mitten 1869; Atwood 2009)
- =Schlotheimia immersa Mitt., J. Linn. Soc., Bot. 12: 221. 1869, nom. illeg. (Mitten 1869; Atwood 2009) ≡Schlotheimia crumii B.C. Tan, Mem. New York Bot. Gard. 68: 5. 1992. (Thiers 1992; Atwood 2009)
- =Schlotheimia emergens Mitt., J. Linn. Soc., Bot. 12: 222. 1869. (Mitten 1869; Atwood 2009)
- =Orthotrichum puiggarii Duby, Flora 63: 170. 1880. (Duby 1880; Atwood 2009) ≡Schlotheimia puiggarii (Duby) Geh. & Hampe, Flora 64: 370. 1881. (Atwood 2009)
- =Schlotheimia uncialis Geh. & Hampe, Flora 64: 371. 1881. (Atwood 2009)
- =Schlotheimia horridula Müll. Hal., Bull. Herb. Boissier 6: 105. 1898. (Müller 1898a; Atwood 2009)
- =Schlotheimia dichotoma Müll. Hal., Bull. Herb. Boissier 6: 106. 1898. (Müller 1898a; Peralta et al. 2022)
- =Schlotheimia serricalyx Müll. Hal., Bull. Herb. Boissier 6: 107. 1898. (Müller 1898a; Atwood 2009)
- =Schlotheimia perserrata Sehnem, Pesquisas, Bot. 32: 35. 1978. (Sehnem 1978; Atwood 2009)
Schlotheimia appunii Müll. Hal., Flora 83: 333. 1897. (Müller 1897d)
Schlotheimia araucarieti Müll. Hal., Bull. Herb. Boissier 6: 104. 1898. (Müller 1898a)
Schlotheimia argentinica Lorentz & Müll. Hal., Linnaea 42: 373. 1879. (Müller 1879a)
Schlotheimia asperrima Broth., Ark. Bot. 15(6): 7. 1918. (Brotherus 1918)
Schlotheimia atlantica Dixon, Ann. Bryol. 9: 140. 1937. (Dixon & Fleischer 1937)
Schlotheimia badiella Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 368. 1880. (Bescherelle 1879; Wilbraham 2021)
- =Schlotheimia badiella var. helicophylla Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 369. 1880. (Bescherelle 1879; Wilbraham 2021)
- =Schlotheimia badiella var. longicaulis Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 369. 1880. (Bescherelle 1879; Wilbraham 2021)
- =Schlotheimia illecebra Schimp. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 369. 1880. (Bescherelle 1879; Wilbraham 2021)
- =Schlotheimia nossi-beana Müll. Hal. ex Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 371. 1880. (Bescherelle 1879; Wilbraham 2021)
- =Schlotheimia linealis Müll. Hal., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881; Wilbraham 2021) ≡Schlotheimia nossi-beana var. linealis (Müll. Hal.) Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 115. 1929. (Thériot 1929a)
- =Schlotheimia badiella var. brevifolia Renauld, Rev. Bryol. 16: 82. 1889. (Wilbraham 2021)
- =Schlotheimia foveolata Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 33(2): 119. 1895. (Wilbraham 2021)
- =Schlotheimia perrotii Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 35(1): 311. 1896. (Wilbraham 2021)
- =Schlotheimia foveolata var. torquescens Cardot, Hist. Phys. Madagascar, Mousses: 259. 1915. (Renauld & Cardot 1915; Wilbraham 2021)
- =Schlotheimia perrotii var. breviseta Thér., Recueil Publ. Soc. Havraise Études Diverses 89(2): 123. 1922. (Thériot 1922; Wilbraham 2021)
- =Schlotheimia nossi-beana f. breviseta Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 115. 1929. (Thériot 1929a)
- =Schlotheimia poecilodictyon P. de la Varde & Thér., Bull. Soc. Bot. France 87: 359. 1940. (Potier de la Varde 1940; Wilbraham 2021)
Schlotheimia balfourii Mitt., Trans. Roy. Soc. Edinburgh 31: 333. 1888. (Mitten 1888)
Schlotheimia boiviniana Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 366. 1880. (Bescherelle 1879)
Schlotheimia brachyphylla Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 33(2): 118. 1895. (Renauld & Cardot 1895)
Schlotheimia breviseta Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 14. 1876. (Ångström 1876)
Schlotheimia brownii Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 52. 1826. (Schwägrichen 1826)

≡Macromitrium brownii (Schwägr.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b)
- =Schlotheimia baileyi Broth., Öfvers. Finska Vetensk.-Soc. Förh. 33: 98. 1891. (McCarthy 2006)
Schlotheimia calomitria Broth., Bot. Jahrb. Syst. 56(Beibl. 123): 11. 1920. (Brotherus 1920)
Schlotheimia campbelliana Müll. Hal., Syn. Musc. Frond. 1: 753. 1849. (Müller 1849)
- =Macromitrium hectorii Mitt., Handb. N. Zeal. Fl.: 430. 1867. (Hooker 1867; Vitt 1989)
Schlotheimia campylopus Müll. Hal. ex Broth., Contr. Fl. Bryol. Brésil: 15. 1891. (Brotherus 1891)
Schlotheimia capillaris Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 6: 145. 1875. (Hampe 1875)
Schlotheimia capillidens Müll. Hal., Bull. Herb. Boissier 6: 107. 1898. (Müller 1898a)
Schlotheimia chamissonis Hornsch., Fl. Bras. 1(2): 31. 1840. (Hornschuch 1840)

≡Macromitrium chamissonis (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
Schlotheimia clavata Geh. & Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 99. 1879. (Hampe 1879)
Schlotheimia conica Renauld & Cardot, Rev. Bot. Bull. Mens. 9: 395. 1891. (Renauld 1891)
Schlotheimia densifolia Thér., Bull. Acad. Int. Géogr. Bot. 18: 253. 1907. (Thériot 1908)
Schlotheimia elata Mitt., J. Linn. Soc., Bot. 12: 225. 1869. (Mitten 1869)
Schlotheimia emarginatopilosa Herzog, Hedwigia 57: 234. 1916. (Herzog 1916b)
- =Schlotheimia bergmanii E.B. Bartram, Svensk Bot. Tidskr. 45: 605. 1951. (Bartram 1951; Eddy 1996)
Schlotheimia excorrugata Müll. Hal. ex Cardot, Hist. Phys. Madagascar, Mousses: 252. 1915. (Renauld & Cardot 1915)
Schlotheimia ferruginea (Burch. ex Hook. & Grev.) Brid., Bryol. Univ. 1: 743. 1826. (Bridel 1826)

Basionym: Orthotrichum ferrugineum Burch. ex Hook. & Grev., Edinburgh J. Sci. 1: 118. 1824. (Hooker & Greville 1824)

≡Macromitrium ferrugineum (Burch. ex Hook. & Grev.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b)
- =Schlotheimia ventrosa Müll. Hal., Syn. Musc. Frond. 1: 756. 1849. (Müller 1849; Magill & van Rooy 1998)
- =Schlotheimia grevilleana Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 53. 1859. (Mitten 1859b; Wilbraham 2008)
- =Schlotheimia schweinfurthii Müll. Hal., Linnaea 39: 408. 1875. (Müller 1875b; Wilbraham 2008)
- =Schlotheimia laetevirens Broth., Bot. Jahrb. Syst. 20: 185. 1894. (Brotherus 1894a; Wilbraham 2008)
- =Schlotheimia rigescens Broth., Bot. Jahrb. Syst. 20: 186. 1894. (Brotherus 1894a; Wilbraham 2008)
- =Schlotheimia fauriei Cardot, Beih. Bot. Centralbl., Abt. 2, 19: 106. 1905. (Cardot 1905; Wilbraham 2008)
- =Schlotheimia calycina Broth. & Paris, Rev. Bryol. 34: 30. 1907. (Wilbraham 2008)
- =Schlotheimia japonica var. sulcata Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 18: 250. 1908. (Thériot 1908; Koponen & Enroth 1992)
- =Schlotheimia latifolia Cardot & Thér., Bull. Acad. Int. Géogr. Bot. 18: 250. 1908. (Thériot 1908; Wilbraham 2008)
- =Schlotheimia japonica Besch. & Cardot, Bull. Herb. Boissier, sér. 2, 8: 336. 1908. (Wilbraham 2008)
- =Schlotheimia purpurascens Paris, Rev. Bryol. 35: 44. 1908. (Wilbraham 2008)
- =Schlotheimia subventrosa Broth. & Bryhn, Forh. Vidensk.-Selsk. Kristiania 1911(4): 13. 1911. (Magill & van Rooy 1998)
- =Schlotheimia bequaertii Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 52. 1927. (Wilbraham 2008)
- =Schlotheimia brachypodia Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 53. 1927. (Wilbraham 2008)
- =Schlotheimia doii Sakurai, Bot. Mag. (Tokyo) 47: 334. 1933. (Wilbraham 2008)
- =Encalypta yakushimensis Horik., Bot. Mag. (Tokyo) 48: 603. 1934. (Wilbraham 2008)
- =Schlotheimia cyrtophylla P. de la Varde, Rev. Bryol. Lichénol. 20: 5. 1951. (Potier de la Varde 1951; Wilbraham 2008)
Schlotheimia fornicata Duby, Flora 60: 75. 1877. (Duby 1877)
- =Schlotheimia bursata Renauld & Cardot, Rev. Bot. Bull. Mens. 9: 395. 1891. (Crosby et al. 1983)
Schlotheimia fornicata var. apiculata P. de la Varde, Rev. Bryol. Lichénol. 19(3–4): 152. 1950. (Potier de la Varde 1950; O'Shea 2006)
Schlotheimia fornicata Duby var. fornicata
Schlotheimia fornicata var. microtheca P. de la Varde, Rev. Bryol. Lichénol. 19: 152. 1950. (Potier de la Varde 1950; O'Shea 2006)
Schlotheimia funiformis Taylor ex Dixon, Notes Roy. Bot. Gard. Edinburgh 20: 94. 1948. (Dixon 1948)
Schlotheimia fuscoviridis Hornsch., Fl. Bras. 1(2): 32. 1840. (Hornschuch 1840)

≡Macromitrium fuscoviride (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
Schlotheimia gauthieri Thér., Bull. Mus. Natl. Hist. Nat. 29: 460. 1923. (Thériot 1923)
Schlotheimia glauca Müll. Hal., Syn. Musc. Frond. 2: 648. 1851. (Müller 1851)
Schlotheimia glaziovii Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 98. 1879. (Hampe 1879)
Schlotheimia gracilescens Broth., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 3(7): 23. 1900. (Brotherus 1900a)
Schlotheimia gracilis Hornsch., Fl. Bras. 1(2): 35. 1840. (Hornschuch 1840)

≡Macromitrium gracile (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 514. 1845, nom. illeg. (Müller 1845b)
Schlotheimia grammocarpa Müll. Hal., Bull. Herb. Boissier 6: 102. 1898. (Müller 1898a)
Schlotheimia grandiareolata Müll. Hal., Linnaea 42: 485. 1879. (Müller 1879b)
Schlotheimia henscheniana Müll. Hal., Linnaea 38: 644. 1874. (Müller 1874d)
Schlotheimia jamesonii (Arn.) Brid., Bryol. Univ. 1: 742. 1826. (Bridel 1826)

Basionym: Orthotrichum jamesonii Arn., Mém. Soc. Hist. Nat. Paris 1(2): 349. 1824. (Arnott 1824)

≡Macromitrium jamesonii (Arn.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Schlotheimia jamesonii var. elata Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 100. 1879. (Hampe 1879)
- =Schlotheimia muelleri Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 100. 1879. (Costa et al. 2016)
- =Schlotheimia sublevifolia Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 126. 1897. (Müller 1897f; Allen 2002)
- =Schlotheimia hansenii Müll. Hal., Hedwigia 37: 238. 1898. (Müller 1898b; Crum & Bartram 1958)
Schlotheimia juliformis Geh. & Hampe, Flora 64: 372. 1881. (Hampe & Geheeb 1881)
Schlotheimia kegeliana (Müll. Hal.) Müll. Hal., Syn. Musc. Frond. 1: 754. 1849. (Müller 1849)

Basionym: Macromitrium kegelianum Müll. Hal., Linnaea 21: 187. 1848. (Müller 1848b)
Schlotheimia knightii Müll. Hal., Hedwigia 37: 142. 1898. (Müller 1898c)
Schlotheimia koningsbergeri M. Fleisch., Nova Guinea 12(2): 117. 1914. (Fleischer 1914; Eddy 1996)
Schlotheimia krausei Hampe & Lorentz, Bot. Zeitung (Berlin) 26: 799. 1868. (Lorentz 1868)
Schlotheimia lancifolia E.B. Bartram, Bryologist 35(1): 9. 1932. (Bartram 1932)
Schlotheimia lasiomitria Müll. Hal., Flora 83: 333. 1897. (Müller 1897d)
Schlotheimia lindmanii Broth., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 3(7): 22. 1900. (Brotherus 1900a)
Schlotheimia linearifolia (Müll. Hal.) Wijk & Margad., Taxon 9: 191. 1960. (Wijk & Margadant 1960a)

Basionym: Macromitrium linearifolium Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Schlotheimia longifolia Hornsch., Fl. Bras. 1(2): 33. 1840, nom. illeg. (Greene 1986)
Schlotheimia longicaulis Broth., Biblioth. Bot. 87: 69. 1916. (Herzog 1916a)
Schlotheimia macgregorii Broth. & Geh., Öfvers. Finska Vetensk.-Soc. Förh. 40: 170. 1898. (Brotherus 1898)
- =Schlotheimia longiseta Dixon, Farlowia 1: 32. 1943. (Dixon 1943; Eddy 1996)
Schlotheimia malacophylla Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 368. 1880. (Bescherelle 1879)
Schlotheimia merkelii Hornsch., Fl. Bras. 1(2): 29. 1840. (Hornschuch 1840)

≡Macromitrium merkelii (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Macromitrium emarginatum Broth., Hedwigia 45: 273. 1906. (Brotherus 1906a; Valente et al. 2020)
Schlotheimia microcarpa Schimp. ex Müll. Hal. & Geh., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881)
Schlotheimia microphylla Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 364. 1880. (Bescherelle 1879)
Schlotheimia microphylla subsp. farlowii Renauld & Cardot, Suppl. Prodr. Fl. Bryol. Madagascar: 52. 1909. (Renauld 1909; O'Shea 2006)
Schlotheimia microphylla Besch. subsp. microphylla
Schlotheimia papuana Nog., J. Hattori Bot. Lab. 10: 16. 1953. (Noguchi 1953)
Schlotheimia paraguensis Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg, sér. 3, 21: 262. 1877. (Bescherelle 1877)
Schlotheimia paulii Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 41(1): 60. 1905. (Renauld & Cardot 1904)
Schlotheimia percuspidata Müll. Hal., Hedwigia 38: 117. 1899. (Müller 1899)
- =Schlotheimia cuspidata Müll. Hal., Index Bryol. Suppl.: 303. 1900, nom. illeg.
- =Schlotheimia acutifolia Renauld & Paris, Rev. Bryol. 29: 6. 1902. (Wilbraham 2021)
- =Schlotheimia congolensis Cardot, Rev. Bryol. 36: 18. 1909. (Cardot 1909a; Wilbraham 2021)
- =Schlotheimia acutifolia var. angustifolia Thér., Recueil Publ. Soc. Havraise Études Diverses 92: 143. 1925. (Thériot 1925; Wilbraham 2021)
- =Schlotheimia fragilifolia Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 54. 1927. (Wilbraham 2021)
Schlotheimia perrieri Thér., Recueil Publ. Soc. Havraise Études Diverses 92: 142. 1925. (Thériot 1925)
Schlotheimia pobeguinii Paris & Broth., Rev. Bryol. 35: 2. 1908. (Paris 1908a)
Schlotheimia pseudoaffinis Müll. Hal., Bull. Herb. Boissier 6: 104. 1898. (Müller 1898a)
Schlotheimia pungens E.B. Bartram, Ann. Bryol. 8: 14. 1936. (Bartram 1935)
- =Schlotheimia charrieri Thér. & P. de la Varde, Rev. Bryol. Lichénol. 10: 139. 1937. (Potier de la Varde 1937; Wu et al. 2011)
Schlotheimia pungentissima Müll. Hal., Linnaea 42: 485. 1879. (Müller 1879b)
Schlotheimia recurvifolia Hornsch., Fl. Bras. 1(2): 35. 1840. (Hornschuch 1840)

≡Macromitrium recurvifolium (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845, nom. illeg. (Müller 1845b)
Schlotheimia regnellii Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 13. 1876. (Ångström 1876)
Schlotheimia rhystophylla Müll. Hal., Hedwigia 37: 143. 1898. (Müller 1898c)
Schlotheimia richardii Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 370. 1880. (Bescherelle 1879)
Schlotheimia robillardii Duby, Flora 60: 75. 1877. (Duby 1877)
- =Schlotheimia phaeochlora Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 370. 1880, nom. illeg. (Bescherelle 1879)
- =Schlotheimia breviseta Schimp. ex Müll. Hal. & Geh., Abh. Naturwiss. Vereins Bremen 7: 208. 1881, nom. illeg. (Müller & Geheeb 1881)
Schlotheimia robusta Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 115. 1929. (Thériot 1929a)

Replaced synonym: Schlotheimia gigantea Thér., Recueil Publ. Soc. Havraise Études Diverses 92: 23. 1926, nom. illeg. (Thériot 1925)
Schlotheimia rubiginosa C.H. Wright, Trans. Linn. Soc. London, Bot. 4: 257. 1894. (Mitten & Wright 1894)
Schlotheimia rufoaeruginosa Müll. Hal., Linnaea 39: 410. 1875. (Müller 1875b)
- =Schlotheimia rufoglauca Müll. Hal., Hedwigia 38: 118. 1899. (Müller 1899; Wijk et al. 1967)
Schlotheimia rufopallens Müll. Hal., Hedwigia 38: 117. 1899. (Müller 1899)
- =Schlotheimia exrugulosa Müll. Hal., Hedwigia 38: 118. 1899. (Müller 1899; Magill & van Rooy 1998)
Schlotheimia rugifolia (Hook.) Schwägr., Sp. Musc. Frond., Suppl. 2, (1,2): 150. 1824. (Schwägrichen 1824)

Basionym: Orthotrichum rugifolium Hook., Musci Exot. 2: pl. 128. 1819. (Hooker 1820)

≡Macromitrium rugifolium (Hook.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Schlotheimia julacea Hornsch., Fl. Bras. 1(2): 30. 1840. (Wijk et al. 1967) ≡Macromitrium julaceum (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b; Wijk et al. 1967)
- =Schlotheimia sinuata Hornsch., Fl. Bras. 1(2): 31. 1840. (Yano 1996) ≡Macromitrium sinuatum (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b; Yano 1996)
- =Schlotheimia martiana Hornsch., Fl. Bras. 1(2): 32. 1840. (Wijk et al. 1967) ≡Macromitrium martianum (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b; Wijk et al. 1967) ≡Schlotheimia martii Kindb., Enum. Bryin. Exot.: 75. 1888, nom. illeg. (Kindberg 1888)
- =Schlotheimia laxa Hornsch., Fl. Bras. 1(2): 33. 1840. (Yano 1996) ≡Macromitrium laxum (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b; Yano 1996)
- =Schlotheimia sullivantii Müll. Hal., Syn. Musc. Frond. 1: 756. 1849. (Müller 1849; Allen 2002)
- =Schlotheimia oerstediana Müll. Hal., Syn. Musc. Frond. 2: 648. 1851. (Müller 1851; Allen 2002)
- =Schlotheimia sphaeropoma Duby, Mém. Soc. Phys. Genève 19: 299. 1868. (Duby 1868; Sharp et al. 1994)
- =Schlotheimia patula Mitt., J. Linn. Soc., Bot. 12: 225. 1869. (Mitten 1869; Sharp et al. 1994)
- =Schlotheimia sartorii Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 191. 1872. (Bescherelle 1872; Sharp et al. 1994)
- =Schlotheimia mohriana Müll. Hal., Linnaea 38: 642. 1874. (Müller 1874d; Allen 2002)
- =Schlotheimia ciliolata Müll. Hal., Bull. Herb. Boissier 5: 560. 1897. (Müller 1897b; Sharp et al. 1994)
Schlotheimia rugulosa Nog., Trans. Nat. Hist. Soc. Formosa 26: 140. 1936. (Noguchi 1936b)
Schlotheimia rusbyana Müll. Hal. ex E. Britton, Bull. Torrey Bot. Club 23: 483. 1896. (Britton 1896)
Schlotheimia semidiaphana (Renauld & Cardot) Cardot, Hist. Phys. Madagascar, Mousses: 260. 1915. (Renauld & Cardot 1915)

Basionym: Macromitrium semidiaphanum Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 32(2): 19. 1893. (Renauld & Cardot 1893)
Schlotheimia spinomitria D.F. Peralta & R. Ristow, Phytotaxa 305(3): 218. 2017. (Peralta & Ristow 2017)
Schlotheimia spinulosa Broth., Hedwigia 45: 273. 1906. (Brotherus 1906a)
Schlotheimia squarrosa Brid., Muscol. Recent. Suppl. 2: 18. 1812. (Bridel 1812)

≡Orthotrichum squarrosum (Brid.) Hook. & Grev., Edinburgh J. Sci. 1: 128. 1824. (Hooker & Greville 1824) ≡Macromitrium squarrosum (Brid.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
Schlotheimia striata Herzog, Feddes Repert. Spec. Nov. Regni Veg. 55: 20. 1952. (Herzog 1952b)
Schlotheimia subfornicata Thér., Recueil Publ. Soc. Havraise Études Diverses 92: 141. 1925. (Thériot 1925)
Schlotheimia sublaxa Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 6: 145. 1875. (Hampe 1875)
Schlotheimia subsinuata Geh. & Hampe, Flora 64: 373. 1881. (Hampe & Geheeb 1881)
Schlotheimia tecta Hook. & Wilson, London J. Bot. 3: 157. 1844. (Hooker & Wilson 1844b)
- =Schlotheimia immersa Müll. Hal., Bot. Zeitung (Berlin) 2: 740. 1844, nom. illeg. ≡Macromitrium immersum Müll. Hal., Bot. Zeitung (Berlin) 3: 542. 1845, nom. illeg. (Müller 1845b)
- =Schlotheimia cuspidifera Mitt., J. Linn. Soc., Bot. 12: 222. 1869. (Mitten 1869; Atwood 2009)
- =Schlotheimia furcata Mitt., J. Linn. Soc., Bot. 12: 222. 1869. (Mitten 1869; Atwood 2009)
- =Schlotheimia robusticuspis Müll. Hal., Bull. Herb. Boissier 6: 106. 1898. (Müller 1898a; Atwood 2009)
Schlotheimia tecta var. jamaicensis E. Britton ex J.J. Atwood, Bryologist 112: 296. 2009. (Atwood 2009)
Schlotheimia tecta Hook. & Wilson var. tecta
Schlotheimia tenuiseta Müll. Hal., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881; Thériot 1929a)
Schlotheimia tomentosa Thér., Rev. Bryol., n.s. 2: 19. 1929. (Thériot 1929b)
Schlotheimia torquata (Sw. ex Hedw.) Brid., Muscol. Recent. Suppl. 2: 16. 1812. (Bridel 1812)

Basionym: Hypnum torquatum Sw. ex Hedw., Sp. Musc. Frond.: 246. 1801. (Hedwig 1801)

≡Neckera torta Sw., Fl. Ind. Occid. 3: 1800. 1806, nom. illeg. ≡Schlotheimia torta Schwägr., Sp. Musc. Frond., Suppl. 1, 2: 39. 1816, nom. illeg. (Schwägrichen 1816) ≡Orthotrichum tortum Hook. & Grev., Edinburgh J. Sci. 1: 127. 1824, nom. illeg. (Hooker & Greville 1824) ≡Orthotrichum torquatum (Sw. ex Hedw.) Arn., Disp. Méth. Mousses: 18. 1825. ≡Schizodon tortum Sw., Adnot. Bot.: 91. 1829, nom. illeg. (Swartz 1829) ≡Macromitrium torquatum (Sw. ex Hedw.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Schlotheimia nitida Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 51. 1826. (Schwägrichen 1826; Grout 1944)
- =Schlotheimia ottonis Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 54. 1826. (Schwägrichen 1826; Grout 1944) ≡Macromitrium ottonis (Schwägr.) Müll. Hal., Bot. Zeitung (Berlin) 3: 544. 1845. (Müller 1845b; Grout 1944)
- =Schlotheimia sprengelii Hornsch., Fl. Bras. 1(2): 34. 1840. (Florschütz 1964) ≡Macromitrium sprengelii (Hornsch.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b; Florschütz 1964)
- =Schlotheimia pabstiana Müll. Hal., Bot. Zeitung (Berlin) 13: 764. 1855. (Yano 1996)
- =Schlotheimia unguiculata Mitt., J. Linn. Soc., Bot. 12: 226. 1869. (Mitten 1869; Wijk et al. 1967)
- =Schlotheimia pabstii Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 13. 1876, nom. illeg. (Ångström 1876; Yano 1996)
- =Schlotheimia nitida var. fuscata Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 4, 1–2: 98. 1879. (Costa et al. 2016)
- =Schlotheimia pellucida Müll. Hal., Bull. Herb. Boissier 5: 561. 1897. (Müller 1897b; Crum & Bartram 1958)
- =Schlotheimia macrospora Müll. Hal., Bull. Herb. Boissier 6: 103. 1898. (Müller 1898a; Grout 1944)
- =Schlotheimia undatorugosa Müll. Hal., Hedwigia 37: 238. 1898. (Müller 1898b; Duarte Bello 1997)
Schlotheimia trichomitria Schwägr., Sp. Musc. Frond., Suppl. 2, 2(1): 55. 1826. (Schwägrichen 1826)

≡Macromitrium trichomitrium (Schwägr.) Müll. Hal., Bot. Zeitung (Berlin) 3: 543. 1845. (Müller 1845b)
- =Schlotheimia compacta Müll. Hal., Syn. Musc. Frond. 1: 763. 1849. (Müller 1849; Peralta & Ristow 2017)
- =Macromitrium laevifolium Mitt., J. Linn. Soc., Bot. 12: 203. 1869. (Mitten 1869; Churchill et al. 2000)
- =Macromitrium pellucidum Mitt., J. Linn. Soc., Bot. 12: 203. 1869. (Mitten 1869; Valente et al. 2020)
- =Schlotheimia pilomitria Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 127. 1897. (Müller 1897f; Churchill et al. 2009)
Schlotheimia trichophora Renauld & Cardot, Rev. Bot. Bull. Mens. 10: 707. 1892. (Renauld 1892)
Schlotheimia trichophora var. stenophylla (Renauld & Cardot) Thér., Recueil Publ. Soc. Havraise Études Diverses 96: 115. 1929. (Thériot 1929a; O'Shea 2006)

Basionym: Schlotheimia trichophora subsp. stenophylla Renauld & Cardot, Suppl. Prodr. Fl. Bryol. Madagascar: 50. 1909. (Renauld 1909)

≡Schlotheimia stenophylla (Renauld & Cardot) Cardot, Hist. Phys. Madagascar, Mousses: 250. 1915. (Renauld & Cardot 1915; Thériot 1929a)
Schlotheimia trichophora Renauld & Cardot var. trichophora
Schlotheimia trypanoclada Schimp. ex Müll. Hal. & Geh., Abh. Naturwiss. Vereins Bremen 7: 208. 1881. (Müller & Geheeb 1881)
Schlotheimia vittii S.L. Guo, Enroth & T.J. Kop., Ann. Bot. Fenn. 44: 28. 2007. (Guo et al. 2007a)

Replaced synonym: Drummondia rubiginosa Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 3: 106. 1896. (Müller 1896c)

≡Schlotheimia rubiginosa (Müll. Hal.) Vitt, Canad. J. Bot. 50: 1193. 1972, nom. illeg. (Vitt 1972)
Schlotheimia wainioi Broth., Contr. Fl. Bryol. Brésil: 15. 1891. (Brotherus 1891)
Schlotheimia wallisii Müll. Hal., Linnaea 37: 173. 1873[1872]. (Müller 1872b)
- =Schlotheimia splendida Mitt., Trans. Linn. Soc. London, Bot. 4: 256. 1894. (Mitten & Wright 1894; Eddy 1996)
- =Schlotheimia pilicalyx Broth. & Geh., Öfvers. Finska Vetensk.-Soc. Förh. 36: 163. 1895. (Eddy 1996)
- =Schlotheimia speciosissima Broth., Philipp. J. Sci., C. 3: 17. 1908. (Brotherus 1908b; Eddy 1996)
- =Schlotheimia gigantea M. Fleisch., Hedwigia 50: 282. 1911. (Fleischer 1911; Eddy 1996)
- =Schlotheimia gigantea var. pilosa M. Fleisch., Nova Guinea 8(2): 745. 1912. (Fleischer 1912) ≡Schlotheimia pilosa (M. Fleisch.) M. Fleisch., Nova Guinea 12(2): 116. 1914. (Fleischer 1914; Vitt et al. 1993)
- =Schlotheimia subrubiginosa Dixon, Farlowia 1: 32. 1943. (Dixon 1943; Eddy 1996)
Sehnemobryum Lewinsky & Hedenäs, Bryologist 101: 549. 1998[1999]. (Lewinsky-Haapasaari & Hedenäs 1998)
Sehnemobryum paraguense (Besch.) Lewinsky & Hedenäs, Bryologist 101: 549. 1998[1999]. (Lewinsky-Haapasaari & Hedenäs 1998)

Basionym: Orthotrichum paraguense Besch., J. Bot. (Morot) 5: 254. 1891. (Bescherelle 1891)
- =Orthotrichum sehnemii E.B. Bartram, J. Washington Acad. Sci. 42: 180. 1952. (Bartram 1952; Lewinsky 1987)
Stoneobryum D.H. Norris & H. Rob., Bryologist 84: 96. 1981. (Norris & Robinson 1981; Lara et al. 2023)
Stoneobryum bunyaense D.H. Norris & H. Rob., Bryologist 84: 96. 1981. (Norris & Robinson 1981; Lara et al. 2023)
Stoneobryum mirum (Lewinsky) D.H. Norris & H. Rob., Bryologist 84: 98. 1981. (Norris & Robinson 1981; Lara et al. 2023)

Basionym: Orthotrichum mirum Lewinsky, Bot. Tidsskr. 72: 73. 1978. (Lewinsky 1978)
Ulota D. Mohr, Ann. Bot. (König & Sims) 2(3): 540. 1806. (Mohr 1806)
- =Weissia Ehrh. ex G. Gaertn., B. Mey. & Scherb., Oekon. Fl. Wetterau 3(2): 11. 1802, nom. illeg. (Gaertner et al. 1802; Crosby & Magill 1981)
- =Bryodixonia Sainsbury, Trans. & Proc. Roy. Soc. New Zealand 75: 177. 1945. (Sainsbury 1945)
Ulota angustilimbata E.B. Bartram, Bryologist 48: 116. 1945. (Bartram 1945)
Ulota barclayi Mitt., J. Linn. Soc., Bot. 8: 26. 1865[1864]. (Mitten 1864a; Vitt 2014)

≡Orthotrichum barclayi (Mitt.) Kindb., Eur. N. Amer. Bryin. 2: 305. 1897[1898]. (Kindberg 1897)
Ulota billbuckii Garilleti, Mazimpaka & F. Lara, Bryologist 115(4): 587. 2012. (Garilleti et al. 2012)
Ulota brachypoda Garilleti, F. Lara & Draper, Bot. J. Linn. Soc. (online): [7]. 2024. (Matanov et al. 2024)
Ulota bruchii Hornsch. ex Brid., Bryol. Univ. 1: 794. 1827. (Bridel 1827a; Garilleti et al. 2000)

≡Orthotrichum bruchii (Hornsch. ex Brid.) Spruce, Ann. Mag. Nat. Hist., ser. 2, 3: 488. 1849, nom. illeg. ≡Weissia bruchii (Hornsch. ex Brid.) Lindb., Musci Scand.: 28. 1879. (Lindberg 1879)
- =Orthotrichum dilatatum Bruch & Schimp., Bryol. Eur. 3: 64. 1837. (Bruch & Schimper 1837; Wijk et al. 1964) ≡Orthotrichum coarctatum var. dilatatum (Bruch & Schimp.) Rabenh., Deutschl. Krypt.-Fl. 2(3): 183. 1848. ≡Orthotrichum bruchii var. dilatatum (Bruch & Schimp.) Buse, Musci Neerl. Spec. Exic.: 108. 1870.
- =Orthotrichum pyriforme Opiz, Seznam 3: 199. 1852. (Wijk et al. 1964)
- =Ulota bruchii var. norvegica Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 22. 1885. (Grönvall 1885; Corley & Crundwell 1991) ≡Ulota crispa var. norvegica (Grönvall) A.J.E. Sm. & M.O. Hill, J. Bryol. 8: 431. 1975. (Smith & Hill 1975)
- =Ulota marchica Warnst., Hedwigia 28: 372. 1889. (Wijk et al. 1969) ≡Ulota bruchii var. marchica (Warnst.) Paris, Index Bryol. Suppl.: 327. 1900.
- =Ulota bruchii var. symmetrica Warnst., Krypt.-Fl. Brandenburg, Laubm.: 356. 1904. (Warnstorf 1904–1906; Podpěra 1954) ≡Ulota bruchii f. symmetrica (Warnst.) Podp., Consp. Musc. Eur.: 460. 1954.
Ulota coarctata (P. Beauv.) Hammar, Monogr. Orthotrich. Ulot. Suec.: 25. 1852. (Hammar 1852)

Basionym: Orthotrichum coarctatum P. Beauv., Prodr. Aethéogam.: 80. 1805. (Palisot de Beauvois 1805)

≡Weissia coarctata (P. Beauv.) Lindb., J. Bot. 11: 200, 204. 1873.
- =Splachnum wulfenianum Schwägr., Sp. Musc. Frond., Suppl. 1, 1: 46. 1811. (Schwägrichen 1811; Anderson et al. 1990)
- =Orthotrichum ludwigii Brid., Muscol. Recent. Suppl. 2: 6. 1812. (Bridel 1812; Flora of North America Editorial Committee 2014) ≡Ulota ludwigii (Brid.) Brid., Muscol. Recent. Suppl. 4: 112. 1819[1818]. (Bridel 1819; Flora of North America Editorial Committee 2014) ≡Orthotrichum crispulum var. ludwigii (Brid.) Hampe, Flora 20: 279. 1837.
- =Orthotrichum bruchii Hornsch. ex Moug. & Nestl., Stirp. Cryptog. Vogeso-Rhenan. 9: no. 826. 1826, nom. illeg.
Ulota cochleata Venturi, Öfvers. Finska Vetensk.-Soc. Förh. 35: 42. 1893. (Brotherus 1893; Ramsay 2006)
Ulota crispa (Hedw.) Brid., Muscol. Recent. Suppl. 4: 112. 1819[1818]. (Bridel 1819)

Basionym: Orthotrichum crispum Hedw., Sp. Musc. Frond.: 162. 1801. (Hedwig 1801)

≡Bryum crispum (Hedw.) With., Syst. Arr. Brit. Pl. (ed. 4) 3: 810. 1801. (Withering 1801) ≡Weissia crispa (Hedw.) G. Gaertn., B. Mey. & Scherb., Oekon. Fl. Wetterau 3(2): 94. 1802. (Gaertner et al. 1802) ≡Systegium crispum (Hedw.) Schur, Enum. Pl. Transsilv.: 866. 1866, nom. illeg.
- =Orthotrichum crispum var. minus DC., Fl. Franç. (ed. 3) 2: 495. 1805. (Lamarck & Candolle 1805; De Sloover 1997)
- =Grimmia sylvatica Turton, Gen. Syst. Nat. 6: 1713. 1806. (Wijk et al. 1967)
- =Neckera ulophylla F. Weber & D. Mohr, Bot. Taschenb. (Weber): 236. 1807, nom. illeg. ≡Weissia ulophylla Ehrh. ex Lindb., Contr. Fl. Crypt. As.: 244. 1872[1873], nom. illeg. (Lindberg 1872) ≡Ulota ulophylla Broth., Nat. Pflanzenfam. I(3): 473. 1902, nom. illeg. (Iwatsuki 1991)
- =Orthotrichum crispum var. macrocarpon Wallr., Fl. Crypt. Germ. 1: 211. 1831. (Wallroth 1831)
- =Orthotrichum ulophyllum Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 121. 1883, nom. illeg. (Kindberg 1883)
- =Ulota crispa f. lutescens Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 23. 1885. (Grönvall 1885) ≡Weissia crispula var. lutescens (Grönvall) Tolf, Bih. Kongl. Svenska Vetensk.-Akad. Handl. 16 Afd. 3(9): 71. 1891. (Tolf 1891)
- =Ulota crispa f. viridis Grönvall, Bidr. Känned. Nord. Orthotrichum & Ulota: 23. 1885. (Grönvall 1885)
- =Orthotrichum connectens Kindb., Ottawa Naturalist 3: 150. 1890. (Flora of North America Editorial Committee 2014) ≡Ulota connectens (Kindb.) Kindb., Enum. Bryin. Exot., Suppl. 2: 108. 1891. (Kindberg 1891; Flora of North America Editorial Committee 2014)
- =Ulota camptopoda Kindb., Cat. Canad. Pl., Musci: 85. 1892. (Macoun & Kindberg 1892; Wijk et al. 1964)
- =Ulota crispa var. subcalvescens Cardot & Thér., Proc. Wash. Acad. Sci. 4: 310. 1902. (Cardot & Thériot 1902; Grout 1946)
- =Ulota crispa var. propagulifera J.J. Amann, Fl. Mouss. Suisse 2: 150. 1918. (Amann & Meylan 1918)
- =Ulota macrocarpa Broth., Symb. Sin. 4: 70. 1929. (Brotherus 1929; Guo et al. 2007a)
- =Ulota cervina Hoe & H.A. Crum, Bryologist 74: 487. 1971[1972]. (Hoe & Crum 1971; Wang & Jia 2012a)
Ulota crispula Bruch, Bryol. Univ. 1: 793. 1827. (Bridel 1827a; Caparrós Callejo et al. 2016)

≡Orthotrichum crispulum (Bruch) Hornsch. ex Bruch & Schimp., Bryol. Eur. 3: 65. 28 (fasc. 2–3 Mon. 23. 12). 1837. (Bruch & Schimper 1837; Caparrós Callejo et al. 2016) ≡Ulota crispa var. crispula (Bruch) Hammar, Monogr. Orthotrich. Ulot. Suec.: 24. 1852. ≡Orthotrichum crispum subsp. crispulum (Bruch) Nyl. & Saelan, Herb. Mus. Fenn.: 66. 1859. ≡Systegium crispula (Bruch) Schur, Enum. Pl. Transsilv.: 866. 1866. (Caparrós Callejo et al. 2016) ≡Weissia crispula (Bruch) Lindb., Revis. Crit. Icon.: 12. 1871, nom. illeg. (Lindberg 1871; Caparrós Callejo et al. 2016) ≡Orthotrichum ulophyllum subsp. crispulum (Bruch) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 121. 1883, nom. illeg. (Kindberg 1883) ≡Orthotrichum cupulatum subsp. crispulum (Bruch) Boulay, Musc. France, Mousses: 344. 1884. (Boulay 1884) ≡Weissia ulophylla var. crispula (Bruch) Braithw., Brit. Moss Fl. 2: 94. 1889. (Braithwaite 1887-1905) ≡Orthotrichum crispum var. crispulum (Bruch) Dalla Torre, Z. Ferdinandeums Tirol 35: 241. 1891. ≡Orthotrichum cupulatum var. crispulum (Bruch) Dalla Torre, Z. Ferdinandeums Tirol 35: 241. 1891, nom. illeg. ≡Ulota crispa subsp. crispula (Bruch) Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 333. 1899. ≡Ulota ulophylla var. crispula (Bruch) Weim., Förteckn. Skand. Växt., Moss. (ed. 2): 40. 1937. (Weimarck 1937) ≡Ulota ulophylla subsp. crispula (Bruch) Giacom., Ist. Bot. Reale Univ. Reale Lab. Crittog. Pavia, Atti 4: 249. 1947.
- =Ulota crispula var. depexa De Not., Atti Reale Univ. Genova 1: 289. 1869. (De Notaris 1869)
- =Ulota crispula var. dolosa Renauld & Cardot, Bot. Gaz. 22: 51. 1896. (Caparrós Callejo et al. 2016)
Ulota curvifolia (Wahlenb.) Sw., Utkast Sv. Fl. (ed. 3): 546. 1816. (Liljeblad 1816)

Basionym: Orthotrichum curvifolium Wahlenb., Fl. Lapp.: 365. 1812. (Wahlenberg 1812)

≡Orthotrichum crispum var. curvifolium (Wahlenb.) Wahlenb., Fl. Suec. (Wahlenberg) 2: 735. 1826. (Wahlenberg 1826) ≡Weissia curvifolia (Wahlenb.) Lindb., J. Bot. 11: 200. 1873.
- =Orthotrichum crispum var. minus Schwägr., Sp. Musc. Frond., Suppl. 1, 2: 23. 1816, nom. illeg. (Schwägrichen 1816; Lewinsky 1977) ≡Ulota crispa var. minor Brid., Bryol. Univ. 1: 301. 1826. (Bridel 1826)
- =Orthotrichum crispum var. microcarpon Wallr., Fl. Crypt. Germ. 1: 211. 1831, nom. illeg. (Wallroth 1831; Lewinsky 1977) ≡Ulota crispa var. microcarpos (Wallr.) Brockm., Laubm. Meklenb.: 86. 1869, nom. illeg.
- =Ulota americana Mitt., J. Linn. Soc., Bot. 8: 26. 1865[1864]. (Mitten 1864a; Flora of North America Editorial Committee 2014)
- =Ulota scabrida Kindb., Cat. Canad. Pl., Musci: 83. 1892. (Macoun & Kindberg 1892; Wijk et al. 1969) ≡Orthotrichum scabridum (Kindb.) Kindb., Eur. N. Amer. Bryin. 2: 306. 1897[1898]. (Kindberg 1897; Wijk et al. 1969)
- =Ulota nicholsonii Culm., Rev. Bryol. 53: 21. 1926. (Culmann 1926; Wijk et al. 1969) ≡Orthotrichum nicholsonii (Culm.) Culm., Musci Eur. & Amer. Exsic. 39: n. 1927. (Wijk et al. 1969)
- =Ulota cirrata Grout, N. Amer. Fl. 15A: 28. 1946, nom. illeg. (Grout 1946)
Ulota delicata Qinghua Wang & Y. Jia, Bryologist 115(3): 420. 2012. (Wang & Jia 2012b)
Ulota drummondii (Hook. & Grev.) Brid., Bryol. Univ. 1(1): 299. 1826. (Bridel 1826)

Basionym: Orthotrichum drummondii Hook. & Grev., Scott. Crypt. Fl. 2: pl. 115. 1824. (Greville 1824)

≡Macromitrium drummondii (Hook. & Grev.) Hampe, Flora 20: 280. 1837. ≡Weissia drummondii (Hook. & Grev.) Lindb., J. Bot. 11: 200. 1873.
- =Orthotrichum subrepens Sommerf., Suppl. Fl. Lapp.: 191. 1826. (Wijk et al. 1964)
- =Ulota bicolor Brid., Bryol. Univ. 1: 792. 1827. (Bridel 1827a; Flora of North America Editorial Committee 2014)
- =Ulota japonica var. stenocarpa Cardot, Bull. Herb. Boissier, sér. 2, 8: 336. 1908. (Iwatsuki 1991)
- =Ulota drummondii var. anceps I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 22. 1908. (Hagen 1908; Podpěra 1954) ≡Ulota drummondii f. anceps (I. Hagen) Podp., Consp. Musc. Eur.: 458. 1954.
- =Ulota funstonii Grout, Moss Fl. N. Amer. 2: 137. 1935. (Grout 1933-1940; Flora of North America Editorial Committee 2014)
Ulota ecklonii (Hornsch.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 163. 1874. (Jaeger 1874)

Basionym: Orthotrichum ecklonii Hornsch., Linnaea 15: 129. 1841. (Hornschuch 1841)
Ulota eurystoma Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 213. 1939. (Noguchi 1939)
Ulota fuegiana Mitt., J. Proc. Linn. Soc., Bot. 4: 76. 1859. (Mitten 1859a)

≡Orthotrichum fuegianum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 192. 1869. (Mitten 1869)
- =Ulota carinata Mitt., J. Proc. Linn. Soc., Bot. 4: 75. 1859. (Mitten 1859a; Wang & Jia 2016) ≡Orthotrichum carinatum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 190. 1869. (Mitten 1869; Wang & Jia 2016)
- =Ulota darwinii Mitt., J. Proc. Linn. Soc., Bot. 4: 77. 1859. (Mitten 1859a; Wang & Jia 2016) ≡Orthotrichum darwinii (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 192. 1869. (Mitten 1869; Wang & Jia 2016) ≡Ulota fuegiana subsp. darwinii (Mitt.) Malta, Acta Horti Bot. Univ. Latv. 2: 188. 1927. (Malta 1927)
- =Ulota angustissima Müll. Hal., Hedwigia 36: 104. 1897. (Müller 1897e; Wang & Jia 2023)
- =Ulota rufula var. patagonica Malta, Acta Horti Bot. Univ. Latv. 2: 200. 1927. (Malta 1927; Wang & Jia 2016)
- =Ulota fernandeziana Malta, Acta Horti Bot. Univ. Latv. 2: 202. 1927. (Malta 1927; Wang & Jia 2016)
- =Ulota fuegiana var. crispata Malta, Acta Horti Bot. Univ. Latv. 2: 202. 1927. (Malta 1927; Wang & Jia 2016)
Ulota fulva Brid., Bryol. Univ. 1: 301. 1826. (Bridel 1826; O'Shea 2006)
- =Schlotheimia fulva Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 30(5): 141. 1873. (Ångström 1873; Bescherelle 1879)
Ulota germana (Mont.) Mitt., J. Proc. Linn. Soc., Bot. 4: 76. 1859. (Mitten 1859a; Garilleti et al. 2020b)

Basionym: Orthotrichum germanum Mont., Ann. Sci. Nat., Bot., sér. 3, 4: 121. 1845. (Montagne 1845)
- =Ulota lobbiana Mitt., J. Proc. Linn. Soc., Bot. 3: 75. 1859. (Wang & Jia 2016) ≡Orthotrichum lobbianum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 192. 1869. (Mitten 1869; Wang & Jia 2016)
- =Orthotrichum rufulum Mitt., J. Linn. Soc., Bot. 12: 191. 1869. (Mitten 1869; Garilleti et al. 2020b) ≡Ulota rufula (Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 164. 1874. (Jaeger 1874; Garilleti et al. 2020b)
- =Orthotrichum brevicolle Mitt., J. Linn. Soc., Bot. 12: 192. 1869. (Mitten 1869; Garilleti et al. 2020b) ≡Ulota brevicollis (Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 164. 1874. (Jaeger 1874; Garilleti et al. 2020b)
- =Orthotrichum chilense Mitt., J. Linn. Soc., Bot. 12: 193. 1869. (Mitten 1869; Garilleti et al. 2020b) ≡Ulota chilensis (Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 164. 1874. (Jaeger 1874; Garilleti et al. 2020b)
- =Ulota savatieri Besch., Bull. Soc. Bot. France 32: LXII. 1885. (Bescherelle 1885; He 1998)
- =Ulota rufula var. fagicola Malta, Acta Horti Bot. Univ. Latv. 2: 200. 1927. (Malta 1927; Garilleti et al. 2020b)
- =Ulota germana var. breviseta Herzog, Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 7: 49. 1938, nom. illeg. (Herzog 1938a)
Ulota gigantospora F. Lara, Caparrós & Garilleti, J. Bryol. 33(3): 214. 2011. (Caparrós Callejo et al. 2011)
Ulota glabella Mitt., J. Proc. Linn. Soc., Bot. 4: 76. 1859. (Mitten 1859a; Garilleti et al. 2020a)

≡Orthotrichum glabellum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 89. 1869. (Mitten 1869; Garilleti et al. 2020a)
- =Ulota eremitensis Mitt., J. Proc. Linn. Soc., Bot. 4: 76. 1859. (Mitten 1859a; Garilleti et al. 2020a) ≡Orthotrichum eremitense (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 189. 1869. (Mitten 1869; Garilleti et al. 2020a)
- =Ulota hermitei Besch., Miss. Sci. Cape Horn, Bot. 5(Bot.): 274. 1889, nom. illeg. (Bescherelle 1889; Garilleti et al. 2020a)
Ulota gymnostoma S.L. Guo, Enroth & Virtanen, Ann. Bot. Fenn. 41: 459. 2004. (Guo et al. 2004)
Ulota hutchinsiae (Sm.) Hammar, Monogr. Orthotrich. Ulot. Suec.: 27. 1852. (Hammar 1852)

Basionym: Orthotrichum hutchinsiae Sm., Engl. Bot. 36: pl. 2523. 1813. (Smith 1813–1814)

≡Orthotrichum crispum var. brevifolium Wahlenb., Fl. Suec. (Wahlenberg) 2: 735. 1826. (Wahlenberg 1826)
- =Orthotrichum americanum P. Beauv., Prodr. Aethéogam.: 80. 1805. (Corley et al. 1981) ≡Orthotrichum saxatile var. americanum (P. Beauv.) Brid., Muscol. Recent. Suppl. 2: 10. 1812. (Bridel 1812) ≡Orthotrichum anomalum var. americanum (P. Beauv.) Steud., Nomencl. Bot. 2: 303. 1824. (Steudel 1824) ≡Weissia americana (P. Beauv.) Lindb., J. Bot. 11: 200. 1873. (Corley et al. 1981) ≡Ulota americana (P. Beauv.) Limpr., Laubm. Deutschl. 2: 21. 1890, nom. illeg. (Limpricht 1885–1903; Corley et al. 1981)
- =Orthotrichum strictum Brid., Bryol. Univ. 1: 289. 1826. (Bridel 1826; Corley et al. 1981)
- =Ulota nigricans Brid., Bryol. Univ. 1: 792. 1827. (Bridel 1827a; Wijk et al. 1969)
- =Orthotrichum nigritum Bruch & Schimp., Bryol. Eur. 3: 53. 1837. (Bruch & Schimper 1837; Wijk et al. 1969) ≡Ulota nigrita (Bruch & Schimp.) Schimp., Coroll. Bryol. Eur.: 41. 1856. (Schimper 1856; Wijk et al. 1969) ≡Ulota americana var. nigrita (Bruch & Schimp.) Limpr., Laubm. Deutschl. 2: 22. 1890, nom. illeg. (Limpricht 1885–1903) ≡Weissia americana var. nigrita (Bruch & Schimp.) E. Britton, Bull. Torrey Bot. Club 21: 69. 1894.
- =Ulota hutchinsiae var. calcicola Hazsl., Magyar Bir. Moh-fl.: 150. 1885. (Hazslinszky von Hazslin 1885; Podpěra 1954) ≡Ulota americana f. calcicola (Hazsl.) Podp., Consp. Musc. Eur.: 458. 1954.
Ulota hutchinsiae (Sm.) Hammar var. hutchinsiae
Ulota hutchinsiae var. rufescens (E. Britton) Dixon, Stud. Handb. Brit. Mosses: 244. 1896. (Dixon 1896; Vitt 2014)

Basionym: Weissia americana var. rufescens E. Britton, Bull. Torrey Bot. Club 21(2): 69. 1894. (Britton 1894)

≡Ulota americana var. rufescens (E. Britton) Paris, Index Bryol. (ed. 2) 5: 96. 1906, nom. illeg. (Paris 1904-1906)
Ulota intermedia Schimp., Syn. Musc. Eur. (ed. 2): 305. 1876. (Schimper 1876; Caparrós Callejo et al. 2016)

≡Orthotrichum ulophyllum var. intermedium (Schimp.) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(3): 121. 1883, nom. illeg. ≡Ulota crispa var. intermedia (Schimp.) Piré & Cardot, Bull. Soc. Roy. Bot. Belgique 24(1): 333. 1885. (Piré & Cardot 1885) ≡Weissia ulophylla var. intermedia (Schimp.) Braithw., Brit. Moss Fl. 2: 94. 1889, nom. illeg. (Braithwaite 1887-1905) ≡Weissia intermedia (Schimp.) Tolf, Bih. Kongl. Svenska Vetensk.-Akad. Handl. 16 Afd. 3(4): 70. 1891. (Tolf 1891; Caparrós Callejo et al. 2016) ≡Orthotrichum ulophyllum subsp. intermedium (Schimp.) Kindb., Eur. N. Amer. Bryin. 2: 307. 1897[1898], nom. illeg. (Kindberg 1897) ≡Ulota crispa subsp. intermedia (Schimp.) Hérib., Mém. Acad. Sci. Clermont-Ferrand, sér. 2, 14: 333. 1899. ≡Ulota ulophylla var. intermedia (Schimp.) Jansen & Wacht., Ned. Kruidk. Arch., ser. 3, 53: 215. 1943.
- =Ulota crispula var. ambigua Schimp., Syn. Musc. Eur.: 258. 1860. (Schimper 1860; Podpěra 1954)
- =Ulota crispa var. minor Lesq. & James, Man. Mosses N. America: 162. 1884, nom. illeg. (Lesquereux & James 1884; Wijk et al. 1969)
Ulota japonica (Sull. & Lesq.) Mitt., Trans. Linn. Soc. London, Bot. 3: 162. 1891. (Mitten 1891)

Basionym: Orthotrichum japonicum Sull. & Lesq., Char. New Musci: 2. 1859. (Sullivant & Lesquereux 1859)
- =Ulota nipponensis Besch., Ann. Sci. Nat., Bot., sér. 7, 17: 339. 1893. (Iwatsuki 1991)
Ulota langxianensis Qinghua Wang & Y. Jia, J. Bryol. 46(3): 211. 2024. (Wang et al. 2024)
Ulota larrainii Garilleti, Mazimpaka & F. Lara, Phytotaxa 217(2): 133. 2015. (Garilleti et al. 2015)
Ulota latisegmenta Qinghua Wang & Y. Jia, Bryologist 115(3): 429. 2012. (Wang & Jia 2012b)
Ulota longifolia Dixon & Sakurai, Bot. Mag. (Tokyo) 49: 140. 1935. (Sakurai 1935; Suzuki & Iwatsuki 2013)

≡Ulota crispa var. longifolia (Dixon & Sakurai) Z. Iwats., J. Hattori Bot. Lab. 21: 143. 1959. (Iwatsuki 1959b)
Ulota lutea (Wilson) Mitt., J. Proc. Linn. Soc., Bot. 4: 77. 1859. (Mitten 1859a; Fife 2017)

Basionym: Orthotrichum luteum Wilson, Fl. Tasman. 2: 184. 1859. (Hooker 1860; Fife 2017)
- =Orthotrichum gracillimum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 427. 1895. (Brown 1895; Wijk et al. 1964)
- =Orthotrichum flexifolium R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 428. 1895. (Brown 1895; Dixon 1926) ≡Ulota laticiliata var. flexifolia (R. Br. bis) Malta, Acta Horti Bot. Univ. Latv. 7: 11. 1933, nom. illeg. (Malta 1932)
- =Orthotrichum tortulosum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 432. 1895. (Brown 1895; Wijk et al. 1964)
- =Orthotrichum erectum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 441. 1895. (Brown 1895; Wijk et al. 1964)
- =Orthotrichum otiraense R. Br. bis, Trans. & Proc. New Zealand Inst. 35: 333. 1903. (Wijk et al. 1964)
- =Ulota weymouthii Venturi ex Rodway, Pap. & Proc. Roy. Soc. Tasmania 1912: 114. 1913. (Fife 2017)
- =Ulota laticiliata Malta, Acta Horti Bot. Univ. Latv. 7: 11. 1932[1933], nom. illeg. (Malta 1932; Fife 2017)
- =Ulota breviseta Malta, Acta Horti Bot. Univ. Latv. 7: 9. 1932[1933]. (Malta 1932; Fife 2017)
Ulota lutea (Wilson) Mitt. var. lutea
Ulota lutea var. robusta Malta, Acta Horti Bot. Univ. Latv. 7: 6. 1932[1933]. (Malta 1932; Ramsay 2006)
Ulota luteola (Hook. f. & Wilson) Wijk & Margad., Taxon 10: 26. 1961. (Wijk & Margadant 1961)

Basionym: Orthotrichum luteolum Hook. f. & Wilson, Fl. Antarct. 2: 403. 1847. (Hooker 1847)
- =Ulota fulvella Mitt., J. Proc. Linn. Soc., Bot. 4: 75. 1859, nom. illeg. (Mitten 1859a) ≡Orthotrichum fulvellum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 191. 1869, nom. illeg. (Mitten 1869; Wijk et al. 1964)
- =Orthotrichum pygmaeothecium Müll. Hal., Flora 68: 418. 1885. (Müller 1885; Wang & Jia 2016) ≡Ulota pygmaeothecia (Müll. Hal.) Kindb., Enum. Bryin. Exot.: 79. 1888. (Kindberg 1888; Wang & Jia 2016)
- =Ulota immarginata Cardot, Bull. Herb. Boissier, sér. 2, 5: 1004. 1905. (Greene 1986)
Ulota macrocalycina Mitt., J. Proc. Linn. Soc., Bot. 4: 75. 1859. (Mitten 1859a)

≡Orthotrichum macrocalycinum (Mitt.) Mitt., J. Linn. Soc., Bot. 12: 190. 1869. (Mitten 1869)
- =Orthotrichum marginatum Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 29(4): 4. 1872. (Ångström 1872; He 1998) ≡Ulota marginata (Ångstr.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 427. 1880. (Jaeger & Sauerbeck 1879; He 1998)
- =Ulota nothofagi Cardot, Bull. Herb. Boissier, sér. 2, 5: 1005. 1905. (Greene 1986)
Ulota macrodontia Dusén ex Malta, Acta Horti Bot. Univ. Latv. 2: 204. 1927. (Malta 1927)
Ulota macrospora Baur & Warnst., Hedwigia 32: 259. 1893. (Baur 1893; Hodgetts et al. 2020)

≡Ulota marchica subsp. macrospora (Baur & Warnst.) Broth., Nat. Pflanzenfam. I(3): 1201. 1909. ≡Ulota rehmannii subsp. macrospora (Baur & Warnst.) Podp., Consp. Musc. Eur.: 459. 1954. (Podpěra 1954)
Ulota magellanica (Mont.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 164. 1874. (Jaeger 1874)

Basionym: Orthotrichum magellanicum Mont., Ann. Sci. Nat., Bot., sér. 2, 19: 242. 1843. (Montagne 1843)
- =Ulota hamata Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 82. 1903. (Dusén 1903; He 1998)
Ulota maltana Garilleti & F. Lara, Bryologist 123(2): 165. 2020. (Garilleti et al. 2020b)
- =Ulota germana var. breviseta Malta, Acta Horti Bot. Univ. Latv. 2: 202. 1927. (Malta 1927; Garilleti et al. 2020b)
Ulota megalospora Venturi, Bot. Centralbl. 44(12): 389. 1890. (Röll 1890a)

≡Weissia megalospora (Venturi) E. Britton, Bull. Torrey Bot. Club 21: 74. 1894. ≡Orthotrichum megalosporum (Venturi) Kindb., Eur. N. Amer. Bryin. 2: 305. 1897[1898]. (Kindberg 1897)
- =Ulota subulata Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 82. 1892. (Macoun & Kindberg 1892; Flora of North America Editorial Committee 2014) ≡Orthotrichum subulatum (Müll. Hal. & Kindb.) Kindb., Eur. N. Amer. Bryin. 2: 305. 1897[1898], nom. illeg. (Kindberg 1897; Wijk et al. 1969)
- =Ulota subulifolia Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 82. 1892. (Macoun & Kindberg 1892; Flora of North America Editorial Committee 2014)
Ulota membranata Malta, Acta Horti Bot. Univ. Latv. 7: 18. 1932[1933]. (Malta 1932; Ramsay 2006)
Ulota morrisonensis Horik. & Nog., J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 3: 37. 1937. (Noguchi 1937)
Ulota novoguinensis E.B. Bartram, Brittonia 11: 91. 1959. (Bartram 1959)
Ulota obtusiuscula Müll. Hal. & Kindb., Cat. Canad. Pl., Musci: 82. 1892. (Macoun & Kindberg 1892)

≡Orthotrichum obtusiusculum (Müll. Hal. & Kindb.) Kindb., Eur. N. Amer. Bryin. 2: 307. 1897[1898]. (Kindberg 1897)
- =Ulota alaskana Cardot & Thér., Proc. Wash. Acad. Sci. 4: 309. 1902. (Cardot & Thériot 1902; Flora of North America Editorial Committee 2014) ≡Ulota crispa var. alaskana (Cardot & Thér.) Grout, Moss Fl. N. Amer. 2: 134. 1935. (Grout 1933-1940)
Ulota orientalis Fedosov & Ignatova, Novosti Sist. Nizsh. Rast. 52(1): 143. 2018. (Fedosov & Ignatova 2018)
Ulota pacifica Fedosov & Ignatova, Novosti Sist. Nizsh. Rast. 52(1): 145. 2018. (Fedosov & Ignatova 2018)
Ulota panchengiana Qinghua Wang & Y. Jia, Cryptog., Bryol. 39(4): 468. 2018. (Wang & Jia 2018)
Ulota perbreviseta Dixon & Sakurai, Bot. Mag. (Tokyo) 49: 139. 1935. (Sakurai 1935)
Ulota perichaetialis (Sainsbury) Goffinet, Bryol. Twenty-first Cent.: 153. 1998. (Goffinet & Vitt 1998)

Basionym: Bryodixonia perichaetialis Sainsbury, Trans. & Proc. Roy. Soc. New Zealand 75: 177. 1945. (Sainsbury 1945)
Ulota phyllanthoides (Müll. Hal.) Kindb., Enum. Bryin. Exot., Suppl. 1: 96. 1889. (Kindberg 1889)

Basionym: Orthotrichum phyllanthoides Müll. Hal., Bot. Jahrb. Syst. 5: 80. 1883. (Müller 1883a)
Ulota pusilla Malta, Acta Horti Bot. Univ. Latv. 2: 193. 1927. (Malta 1927)
- =Ulota latoventrosa Müll. Hal. ex Malta, Acta Horti Bot. Univ. Latv. 2: 194. 1927. (Malta 1927; Wang & Jia 2016)
Ulota pycnophylla Dusén ex Malta, Acta Horti Bot. Univ. Latv. 2: 183. 1927. (Malta 1927)
- =Ulota aurantiaca Dusén ex Malta, Acta Horti Bot. Univ. Latv. 2: 184. 1927. (Malta 1927; Wang & Jia 2016)
Ulota rehmannii Jur., Verh. K.K. Zool.-Bot. Ges. Wien 14: 191. 1864. (Juratzka 1864)

≡Orthotrichum rehmannii (Jur.) Kindb., Eur. N. Amer. Bryin. 2: 307. 1897[1898]. (Kindberg 1897)
Ulota reptans Mitt., Trans. Linn. Soc. London, Bot. 3: 161. 1891. (Mitten 1891)
Ulota rhytiore (B.H. Allen) F. Lara, Garilleti, Albertos & Mazimpaka, Bryologist: 111. 2008. (Albertos et al. 2008)

Basionym: Orthotrichum rhytiore B.H. Allen, Monogr. Syst. Bot. Missouri Bot. Gard. 90: 639. 2002. (Allen 2002)
Ulota robusta Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 49. 1859. (Mitten 1859b)
- =Ulota bellissima Besch., Ann. Sci. Nat., Bot., sér. 7, 15: 57. 1892. (Bescherelle 1892; Wang & Jia 2012b)
Ulota rubella E.B. Bartram, Lloydia 5: 269. 1942. (Bartram 1942a)
Ulota schmidii (Müll. Hal.) Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 49. 1859. (Mitten 1859b)

Basionym: Orthotrichum schmidii Müll. Hal., Bot. Zeitung (Berlin) 11: 60. 1853. (Müller 1854)
Ulota splendida E.B. Bartram, Lloydia 5: 269. 1942. (Bartram 1942a)
- =Ulota hattorii Z. Iwats., J. Hattori Bot. Lab. 32: 280. 1969. (Iwatsuki 1969; Wang & Jia 2012b)
Ulota streptodon Garilleti, Mazimpaka & F. Lara, Bryologist 115(4): 594. 2012. (Garilleti et al. 2012)
Ulota ventricosa (Müll. Hal.) Malta, Acta Horti Bot. Univ. Latv. 2: 180. 1927. (Malta 1927)

Basionym: Zygodon ventricosus Müll. Hal., Linnaea 18: 668. 1844[1845]. (Müller 1844)
Ulota viridis Venturi, Öfvers. Finska Vetensk.-Soc. Förh. 35: 43. 1893. (Brotherus 1893; Fife 2017)
- =Ulota anceps Venturi, Öfvers. Finska Vetensk.-Soc. Förh. 35: 42. 1893. (Brotherus 1893; Ramsay 2006)
- =Orthotrichum parvulum R. Br. bis, Trans. & Proc. New Zealand Inst. 27: 439. 1895, nom. illeg. (Brown 1895; Malta 1932)
- =Ulota viridis var. adpressa Malta, Acta Horti Bot. Univ. Latv. 7: 22. 1932[1933]. (Malta 1932; Fife 2017)
- =Ulota dixonii var. novae-seelandiae Sainsbury, Rev. Bryol. Lichénol. 18: 112. 1949. (Sainsbury 1949) ≡Ulota novae-seelandiae (Sainsbury) Sainsbury, Bull. Roy. Soc. New Zealand 5: 223. 1955. (Sainsbury 1955; Fife 2017)
Ulota viridis var. dixonii (Malta) H.P. Ramsay, Fl. Australia 51: 411. 2006. (Ramsay 2006)

Basionym: Ulota dixonii Malta, Acta Horti Bot. Univ. Latv. 7: 19. 1932[1933]. (Malta 1932; Ramsay 2006)
Ulota viridis Venturi var. viridis
Ulota yakushimensis Z. Iwats., J. Hattori Bot. Lab. 21: 153. 1959. (Iwatsuki 1959b)
Ulota yunnanensis F. Lara, Caparrós & Garilleti, J. Bryol. 33(3): 211. 2011. (Caparrós Callejo et al. 2011)
Zygodon Hook. & Taylor, Muscol. Brit.: 70. 1818. (Hooker & Taylor 1818)
- =Gagea Raddi, Opusc. Sci. 2(6): 361. 1819, nom. illeg.
- =Leptodontiopsis Broth., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 146. 1910. (Brotherus 1910b)
- =Pleurozygodontopsis Dixon, Ann. Bryol. 12: 51. 1939. (Dixon 1939)
Zygodon acutifolius Müll. Hal., Bot. Zeitung (Berlin) 11: 58. 1853. (Müller 1854)

≡Codonoblepharon acutifolium (Müll. Hal.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 119. 1874. (Jaeger 1874)
Zygodon altarensis Broth. ex Malta, Gatt. Zygodon: 129. 1926. (Malta 1926)
Zygodon angustatus Schimp., Syn. Musc. Frond. 1: 676. 1849. (Müller 1849)
Zygodon anomalus Dozy & Molk., Musc. Frond. Archip. Ind.: 22. 1844. (Dozy & Molkenboer 1844)
Zygodon apiculatus Redf., Bryologist 70(3): 333. 1967. (Redfearn Jr. 1967; Atwood 2010)
Zygodon barbuloides Broth. ex Malta, Gatt. Zygodon: 131. 1926. (Malta 1926)
Zygodon brevipes Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 121. 1897. (Müller 1897f)
- =Zygodon liliputanus Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 122. 1897. (Müller 1897f; Churchill et al. 2000)
Zygodon brevisetus Wilson ex Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 47. 1859. (Mitten 1859b)
Zygodon campylophyllus Müll. Hal., Syn. Musc. Frond. 1: 680. 1849. (Müller 1849)
- =Zygodon domingensis Thér., Rev. Bryol. Lichénol. 14: 14. 1944. (Thériot 1944; Allen 2002)
Zygodon catarinoi C.A. Garcia, F. Lara, Sérgio & Sim-Sim, Nova Hedwigia 82: 248. 2006. (Garcia et al. 2006)
- =Zygodon bistratus Calabrese & J. Muñoz, Bryologist 109: 38. 2006. (Calabrese & Muñoz 2006; Calabrese & Muñoz 2008)
Zygodon cernuus Müll. Hal., Hedwigia 38: 114. 1899. (Müller 1899)
Zygodon conoideus (Dicks.) Hook. & Taylor, Muscol. Brit.: 71. 1818. (Hooker & Taylor 1818)

Basionym: Bryum conoideum Dicks., Fasc. Pl. Crypt. Brit. 4: 9. 1801. (Dickson 1801)

≡Mnium conoideum (Dicks.) Sm., Trans. Linn. Soc. London 7: 261. 1803. ≡Gymnocephalus conoideus (Dicks.) Schwägr., Sp. Musc. Frond., Suppl. 1, 2: 87. 1816. (Schwägrichen 1816)
- =Zygodon conoideus var. minor Hook. & Grev., Edinburgh J. Sci. 1: 132. 1824. (Hooker & Greville 1824; Podpěra 1954)
- =Zygodon conoideus var. aeruginosus Huebener, Muscol. Germ.: 386. 1833. (Huebener 1833)
- =Zygodon brebissonii Bruch & Schimp., Bryol. Eur. 3: 40. 1838. (Bruch & Schimper 1838; Wijk et al. 1969)
- =Zygodon viridissimus var. brevifolius Warnst., Krypt.-Fl. Brandenburg, Laubm. 2: 351. 1904. (Warnstorf 1904–1906; Malta 1926)
Zygodon conoideus (Dicks.) Hook. & Taylor var. conoideus
Zygodon conoideus var. latifolius Brid., Bryol. Univ. 1: 592. 1826. (Bridel 1826; O'Shea 2006)
Zygodon conoideus var. lingulatus S.R. Edwards, J. Bryol. 22: 41. 2000. (Edwards et al. 2000; Hodgetts et al. 2020)
Zygodon cylindricus Schimp., Syn. Musc. Frond. 1: 672. 1849. (Müller 1849)
Zygodon dentatus (Limpr.) Breidl. ex Gams, Kleine Kryptogamenfl. 1: 130. 1940. (Gams 1940)

Basionym: Zygodon viridissimus var. dentatus Limpr., Laubm. Deutschl. 2(14): 12. 1890. (Limpricht 1885–1903)

≡Zygodon viridissimus subsp. dentatus (Limpr.) J.J. Amann, Fl. Mouss. Suisse 1: 96. 1918. (Amann & Meylan 1918)
Zygodon dioicus Broth., Bot. Jahrb. Syst. 30: 262. 1901. (Brotherus 1901a)
Zygodon ehrenbergii Müll. Hal., Linnaea 18: 672. 1844[1845]. (Müller 1844)
- =Zygodon oligodontus Cardot, Rev. Bryol. 36: 107. 1909. (Cardot 1909b; Allen 2002)
Zygodon elatus (Dixon) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 287. 2004. (Goffinet et al. 2004)

Basionym: Leptodontiopsis elata Dixon, Smithsonian Misc. Collect. 69(2): 13. 1918. (Dixon 1918)
Zygodon erosus Mitt., J. Linn. Soc., Bot. 22: 305. 1886. (Mitten 1886)
- =Zygodon africanus Sim, Trans. Roy. Soc. South Africa 15: 270. 1926. (Sim 1926; Magill & van Rooy 1998)
Zygodon erosus var. circinatifolius Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 46. 1927. (Naveau 1927; O'Shea 2006)
Zygodon erosus Mitt. var. erosus
Zygodon fasciculatus Mitt., Hooker's J. Bot. Kew Gard. Misc. 3: 351. 1851. (Mitten 1851b)
Zygodon fragilifolius Broth. ex Malta, Gatt. Zygodon: 64. 1926. (Malta 1926; Goffinet et al. 2004)

≡Leptodontiopsis fragilifolia var. brotheri P. de la Varde, Bull. Mus. Natl. Hist. Nat. 14: 368. 1942. (O'Shea 2006)
Zygodon fragilifolius Broth. ex Malta var. fragilifolius
Zygodon fragilifolius var. papillosus Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 287. 2004. (Goffinet et al. 2004; O'Shea 2006)

Replaced synonym: Leptodontiopsis fragilifolia Broth., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 146. 1910. (Brotherus 1910b; Goffinet et al. 2004)
Zygodon fragilis H. Rob., Lindbergia 4: 111. 1977. (Robinson et al. 1977)
Zygodon fruticola R.S. Williams, Bull. New York Bot. Gard. 3(9): 127. 1903. (Williams 1903)
Zygodon gracilis Wilson, Edinburgh New Philos. J., n.s. 13(2): 332. 1861. (Wilson 1861)

≡Didymodon gracilis (Wilson) Lorentz, Bryol. Notizb.: 18. 1865, nom. illeg. ≡Leptodontium gracile (Wilson) De Not. ex Lorentz & Molendo, Flora 50(29): 453. 1867. ≡Amphoridium gracile (Wilson) De Not., Atti Reale Univ. Genova 1: 278. 1869. ≡Trichostomum gracile (Wilson) Molendo, Ber. Naturhist. Vereins Passau 10: 79. 1875, nom. illeg.
- =Zygodon viridissimus var. saxicola Molendo, Bad Schliersee: 96. 1862. (Karttunen 1984) ≡Zygodon gracilis var. saxicola (Molendo) G. Roth, Eur. Laubm. 1: 462. 1904. (Roth 1904–1905)
- =Zygodon nowellii var. alpinus Schimp., Syn. Musc. Eur. (ed. 2): 197. 1876. (Schimper 1876) ≡Zygodon gracilis var. alpinus (Schimp.) Grav., Rev. Bryol. 10: 23. 1883. (Ochyra et al. 2003)
- =Zygodon nowellii Schimp., Syn. Musc. Eur. (ed. 2): 297. 1876, nom. illeg. (Schimper 1876)
- =Zygodon gracilis var. alpinus Culm., Eur. Laubm. 1: 462. 1904, nom. illeg. (Roth 1904–1905; Wijk et al. 1969)
Zygodon hatcheri Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 86. 1903. (Dusén 1903)
Zygodon hirsutus G. Negri, Ann. Bot. (Rome) 7: 166. 1908. (Negri 1908)
Zygodon hookeri Hampe, Linnaea 30: 632. 1860. (Hampe 1860b)
- =Zygodon mucronatus Müll. Hal., Hedwigia 37: 136. 1898, nom. illeg. (Müller 1898c; Lewinsky 1989a) ≡Zygodon submucronatus Paris, Index Bryol. Suppl.: 330. 1900. (Lewinsky 1989a)
Zygodon hookeri Hampe var. hookeri
Zygodon hookeri var. leptobolax (Müll. Hal.) Calabrese, Bryologist 109: 502. 2006. (Calabrese 2006; Müller 2009)

Basionym: Zygodon leptobolax Müll. Hal., Hedwigia 38: 113. 1899. (Müller 1899; Calabrese 2006)
- =Zygodon inermis Malta, Gatt. Zygodon: 126. 1926. (Malta 1926; Calabrese 2006)
- =Zygodon theriotii Herzog, Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 7: 47. 1939. (Calabrese 2006)
Zygodon insularum Dixon, Results Norweg. Sci. Exped. Tristan da Cunha 48: 27. 1960. (Dixon 1960)
Zygodon intermedius Bruch & Schimp., Bryol. Eur. 3: 41. 1838. (Bruch & Schimper 1838)
- =Zygodon conoideus var. elongatus Hook. & Grev., Edinburgh J. Sci. 1: 132. 1824. (Hooker & Greville 1824; Lewinsky 1989a)
- =Zygodon brownii Schwägr., Sp. Musc. Frond., Suppl. 4: 317. 1842. (Schwägrichen 1842; Calabrese 2006)
- =Zygodon brachyodus Müll. Hal. & Hampe, Linnaea 28: 210. 1856. (Hampe & Müller 1856; Calabrese 2006)
- =Zygodon affinis Dozy & Molk. ex Bosch & Sande Lac., Bryol. Jav. 1: 107. 1859. (Dozy & Molkenboer 1861; Calabrese 2006)
- =Zygodon krausei Lorentz, Moosstudien: 162. 1864. (Lorentz 1864; Calabrese 2006)
- =Gymnostomum sulcatum C. Knight, Trans. & Proc. New Zealand Inst. 7: 355. 1875. (Wijk et al. 1969) ≡Zygodon sulcatus (C. Knight) Dixon, New Zealand Inst. Bull. 3(3): 117. 1923. (Dixon 1923; Wijk et al. 1969)
- =Zygodon confertus Müll. Hal., Hedwigia 37: 134. 1898. (Müller 1898c; Calabrese 2006)
- =Zygodon gracilicaulis Müll. Hal., Hedwigia 37: 135. 1898. (Müller 1898c; Calabrese 2006)
- =Zygodon hymenodontioides Müll. Hal., Hedwigia 37: 135. 1898, nom. illeg. (Müller 1898c; Calabrese 2006)
- =Zygodon nanus Müll. Hal., Hedwigia 37: 135. 1898. (Müller 1898c; Calabrese 2006)
- =Zygodon curvicaulis Dusén, Rep. Princeton Univ. Exp. Patagonia, Bot. 8(3): 84. 1903. (Dusén 1903; Calabrese 2006)
- =Zygodon pangerangensis M. Fleisch., Musci Buitenzorg 2: 395. 1904. (Calabrese 2006)
- =Zygodon coraniensis Herzog, Biblioth. Bot. 87: 63. 1916. (Herzog 1916a; Calabrese 2006)
- =Zygodon stresemannii Herzog, Hedwigia 57: 233. 1916. (Herzog 1916b; Calabrese 2006)
- =Zygodon skujae Malta, Gatt. Zygodon: 74. 1926. (Malta 1926; Norris et al. 2014)
- =Zygodon transvaaliensis Rehmann ex Sim, Trans. Roy. Soc. South Africa 15: 271. 1926. (Sim 1926; Calabrese 2006)
Zygodon intermedius var. dusenii Malta, Gatt. Zygodon: 77. 1926. (Malta 1926; O'Shea 2006)
Zygodon intermedius Bruch & Schimp. var. intermedius
Zygodon intermedius var. strictifolius Thér., Rev. Bryol., n.s. 3: 38. 1930. (Thériot 1930a; O'Shea 2006)
Zygodon intermedius var. viridigracilior M. Fleisch., Musci Buitenzorg 2: 395. 1904. (Fleischer 1904; Malta 1926)
Zygodon jaffuelii Thér., Revista Chilena Hist. Nat. 25: 300. 1921. (Thériot 1921b; Calabrese 2006)
Zygodon johnstonii Broth. ex Malta, Gatt. Zygodon: 132. 1926. (Malta 1926)
Zygodon laxifolius Thér., Recueil Publ. Soc. Havraise Études Diverses 89(2): 122. 1922, nom. illeg. (Thériot 1922)
Zygodon leptocarpus Thér., Recueil Publ. Soc. Havraise Études Diverses 89(2): 121. 1922. (Thériot 1922)
Zygodon liebmannii Schimp., Syn. Musc. Frond. 1: 673. 1849. (Müller 1849)
- =Zygodon brevicollis Mitt., J. Linn. Soc., Bot. 12: 234. 1869. (Mitten 1869; Allen 2002) ≡Codonoblepharon brevicolle (Mitt.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 118. 1874. (Jaeger 1874; Allen 2002)
- =Zygodon affinis Schimp., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 186. 1872, nom. illeg. (Bescherelle 1872; Allen 2002)
- =Zygodon mexicanus A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 112. 1874. (Jaeger 1874; Allen 2002)
Zygodon longicellularis D.G. Griffin, Cryptog. Bryol. Lichénol. 11: 163. 1990. (Griffin III 1990)
Zygodon longisetus R.S. Williams, Publ. Field Mus. Nat. Hist., Bot. Ser. 4: 130. 1927. (Williams 1927b)
Zygodon lukasii Herzog, Repert. Spec. Nov. Regni Veg. 45: 47. 1938. (Herzog 1938b)
Zygodon macrocarpus (Dixon) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 287. 2004. (Goffinet et al. 2004)

Basionym: Leptodontiopsis macrocarpa Dixon, J. Bot. 76: 252. 1938. (Dixon 1938a)
Zygodon macrophyllus Herzog, Biblioth. Bot. 87: 62. 1916. (Herzog 1916a)
Zygodon magellanicus Dusén ex Malta, Gatt. Zygodon: 34. 1926. (Malta 1926)
Zygodon microgemmaceus Dixon, J. Bot. 76: 253. 1938. (Dixon 1938a)
Zygodon nivalis Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 326. 1865. (Hampe 1865)
Zygodon obovalis Mitt., Rep. Challenger, Bot. 1(3): 79. 1884. (Mitten 1884)
Zygodon ochraceus Müll. Hal., Linnaea 42: 366. 1879. (Müller 1879a)
- =Zygodon pygmaeus Müll. Hal., Linnaea 42: 368. 1879. (Müller 1879a; Wijk et al. 1969)
Zygodon oeneus Herzog, Biblioth. Bot. 87: 61. 1916. (Herzog 1916a)
Zygodon orientalis (Dixon) Goffinet, Monogr. Syst. Bot. Missouri Bot. Gard. 98: 287. 2004. (Goffinet et al. 2004)

Basionym: Leptodontiopsis orientalis Dixon, J. Linn. Soc., Bot. 50: 91. 1935. (Dixon 1935a)
Zygodon papillatus Mont., Ann. Sci. Nat., Bot., sér. 3, 4: 106. 1845. (Montagne 1845)

≡Codonoblepharon papillatum (Mont.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 118. 1874. (Jaeger 1874)
Zygodon patrum Sehnem, Pesquisas, Bot. 32: 6. 1978. (Sehnem 1978)
Zygodon perichaetialis Herzog, Beih. Bot. Centralbl., Abt. 2, 26(2): 66. 1909. (Herzog 1909)
Zygodon perreflexus Müll. Hal., Hedwigia 38: 115. 1899. (Müller 1899)
Zygodon peruvianus Sull., U.S. Expl. Exped., Musci: 6. 1859[1860]. (Sullivant 1859)

≡Codonoblepharon peruvianum (Sull.) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 119. 1874. (Jaeger 1874)
- =Zygodon goudotii Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 325. 1865. (Hampe 1865; Churchill & Linares Castillo 1995)
- =Zygodon ovalis Mitt., J. Linn. Soc., Bot. 12: 235. 1869. (Mitten 1869; Churchill et al. 2000)
- =Zygodon aureus Müll. Hal., Flora 58: 535. 1875. (Müller 1875a; Churchill & Linares Castillo 1995)
- =Zygodon recurvifolius Schimp. ex E. Britton, Bull. Torrey Bot. Club 23: 483. 1896. (Britton 1896; Churchill et al. 2000)
- =Zygodon ferrugineus Schimp. ex Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 120. 1897. (Müller 1897f; Wijk et al. 1969)
Zygodon petrophilus R.S. Williams, Publ. Field Mus. Nat. Hist., Bot. Ser. 4: 131. 1927. (Williams 1927b)
Zygodon pichinchensis (Taylor) Mitt., Hooker's J. Bot. Kew Gard. Misc. 3: 356. 1851. (Mitten 1851b)

Basionym: Didymodon pichinchensis Taylor, London J. Bot. 7: 280. 1848. (Taylor 1848)
- =Zygodon setulosus Mitt., J. Linn. Soc., Bot. 12: 237. 1869. (Mitten 1869; Calabrese 2006)
- =Leptodontium spinosum R.S. Williams, Bryologist 33: 73. 1931. (Calabrese 2006)
- =Triquetrella spiculosa Thér., Rev. Bryol. Lichénol. 9: 14. 1936. (Calabrese 2006)
Zygodon pilosulus Müll. Hal., Linnaea 42: 484. 1879. (Müller 1879b)
- =Zygodon basidentatus Herzog, Biblioth. Bot. 87: 167. 1916. (Herzog 1916a; Churchill et al. 2000)
Zygodon podocarpi Müll. Hal. ex Malta, Gatt. Zygodon: 134. 1926. (Malta 1926)
Zygodon polyptychus Cardot, Nat. Pflanzenfam., ed. 2, 11: 14. 1925. (Brotherus 1925)
Zygodon quitensis Mitt., J. Linn. Soc., Bot. 12: 238. 1869. (Mitten 1869; Churchill et al. 2000)
Zygodon quitensis var. integrifolius Malta, Gatt. Zygodon: 90. 1926. (Malta 1926; Churchill et al. 2000)
Zygodon quitensis Mitt. var. quitensis
Zygodon ramulosus Herzog, Biblioth. Bot. 87: 62. 1916. (Herzog 1916a)
Zygodon reinwardtii (Hornsch.) A. Braun, Bryol. Eur. 3: 41. 1838. (Bruch & Schimper 1838)

Basionym: Syrrhopodon reinwardtii Hornsch., Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 14(2): 700. 1829. (Reinwardt & Hornschuch 1829)
- =Zygodon denticulatus Taylor, London J. Bot. 6: 329. 1847. (Taylor 1847; Calabrese 2006)
- =Zygodon moritzianus Müll. Hal., Linnaea 19: 199. 1847[1846]. (Calabrese 2006)
- =Zygodon cylindricarpus Müll. Hal., Bot. Zeitung (Berlin) 11: 59. 1853. (Calabrese 2006)
- =Zygodon subdenticulatus Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 326. 1865. (Hampe 1865; Calabrese 2006)
- =Zygodon andinus Mitt., J. Linn. Soc., Bot. 12: 236. 1869. (Mitten 1869; Calabrese 2006)
- =Zygodon circinatus Schimp. ex Besch., Mém. Soc. Natl. Sci. Nat. Cherbourg 16: 187. 1872. (Bescherelle 1872; Calabrese 2006)
- =Zygodon breviciliatus Thwaites & Mitt., J. Linn. Soc., Bot. 13: 304. 1873. (Mitten 1873b; Calabrese 2006)
- =Zygodon ceratodontoides Müll. Hal., Flora 58: 535. 1875. (Müller 1875a; Calabrese 2006)
- =Zygodon glaziovii Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn ser. 3, 6: 142. 1875. (Calabrese 2006)
- =Zygodon caldensis Ångstr., Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 15. 1876. (Ångström 1876; Calabrese 2006)
- =Zygodon fendleri Müll. Hal., Linnaea 42: 484. 1879. (Müller 1879b; Calabrese 2006)
- =Zygodon gymnus Müll. Hal., Linnaea 42: 485. 1879. (Müller 1879b; Calabrese 2006)
- =Zygodon borbonicus Besch., Ann. Sci. Nat., Bot., sér. 6, 9: 353. 1880. (Bescherelle 1879; Calabrese 2006)
- =Zygodon hyadesii Besch., Bull. Soc. Bot. France 32: LX. 1885. (Bescherelle 1885; Calabrese 2006) ≡Zygodon reinwardtii var. hyadesii (Besch.) Malta, Gatt. Zygodon: 121. 1926. (Malta 1926)
- =Zygodon volkensii Broth., Bot. Jahrb. Syst. 24: 241. 1897. (Brotherus 1897; Calabrese 2006)
- =Zygodon paucidens Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 120. 1897. (Müller 1897f; Calabrese 2006)
- =Zygodon dives Müll. Hal., Bull. Herb. Boissier 6: 94. 1898. (Müller 1898a; Calabrese 2006)
- =Zygodon argutidens Broth., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 148. 1910. (Brotherus 1910b; Calabrese 2006)
- =Zygodon reinwardtii var. madacassus Cardot, Hist. Phys. Madagascar, Mousses: 229. 1915. (Renauld & Cardot 1915; Calabrese 2006)
- =Zygodon reinwardtii var. subintegrifolius Malta, Gatt. Zygodon: 122. 1926. (Malta 1926; Calabrese 2006)
- =Pleurozygodontopsis decurrens Dixon, Ann. Bryol. 12: 51. 1939. (Dixon 1939; Calabrese 2006)
Zygodon reinwardtii var. capillicaulis (Müll. Hal.) Malta, Gatt. Zygodon: 122. 1926. (Malta 1926; Costa et al. 2011)

Basionym: Zygodon capillicaulis Müll. Hal., Bull. Herb. Boissier 6: 94. 1898. (Müller 1898a; Calabrese 2006)
Zygodon reinwardtii (Hornsch.) A. Braun var. reinwardtii
Zygodon reinwardtii var. ruwenzorensis (Thér. & Naveau) Demaret, Bull. Jard. Bot. État Bruxelles 16: 66. 1940. (Demaret 1940; O'Shea 2006)

Basionym: Zygodon borbonicus var. ruwenzorensis Thér. & Naveau, Bull. Soc. Roy. Bot. Belgique 60: 46. 1927. (Naveau 1927)
Zygodon robustus Broth. ex Malta, Gatt. Zygodon: 132. 1926. (Malta 1926)
Zygodon roccatii G. Negri, Ann. Bot. (Rome) 7: 165. 1908. (Negri 1908)
Zygodon roccatii var. diffusus G. Negri, Ruwenzori, Parte Sci. 1(2): 498. 1909. (Negri 1909; O'Shea 2006)
Zygodon roccatii G. Negri var. roccatii
Zygodon rubrigemmius (Hoe & H.A. Crum) R.H. Zander & Vitt, Canad. J. Bot. 57: 296. 1979. (Zander & Vitt 1979)

Basionym: Anoectangium rubrigemmium Hoe & H.A. Crum, Bryologist 74: 485. 1971[1972]. (Hoe & Crum 1971)
Zygodon rufescens (Hampe) Broth., Index Bryol. (ed. 2) 5: 141. 1906. (Paris 1904-1906)

Basionym: Orthotrichum rufescens Hampe, Ann. Sci. Nat., Bot., sér. 5, 4: 334. 1865. (Hampe 1865)

≡Ulota rufescens (Hampe) A. Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1872–73: 163. 1874. (Jaeger 1874)
- =Zygodon hamatus Mitt., J. Linn. Soc., Bot. 12: 233. 1869. (Mitten 1869; Wijk et al. 1969)
- =Zygodon vestitus R.S. Williams, Bull. New York Bot. Gard. 3(9): 127. 1903. (Williams 1903; Fife 2017)
Zygodon runcinatus Müll. Hal., Hedwigia 38: 114. 1899. (Müller 1899)
Zygodon rupestris Schimp. ex Lorentz, Bryol. Notizb.: 32. 1865. (Lorentz 1865)
- =Zygodon viridissimus var. rupestris Lindb. ex C. Hartm., Handb. Skand. Fl. (ed. 8): 382. 1861. (Hartman 1861) ≡Amphoridium rupestre (Lindb. ex C. Hartm.) De Not., Atti Reale Univ. Genova 1: 274. 1869. (Karttunen 1984) ≡Zygodon rupestris (Lindb. ex C. Hartm.) Norrl., Bidr. Sydöst. Tavastl. Fl.: 161. 1870, nom. illeg. (Karttunen 1984) ≡Zygodon viridissimus subsp. rupestris (Lindb. ex C. Hartm.) Kindb., Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 146. 1883. (Kindberg 1883) ≡Zygodon viridissimus f. rupestris (Lindb. ex C. Hartm.) Malta, Gatt. Zygodon: 38. 1926.
- =Zygodon viridissimus var. saxicola Molendo & Lorentz, Moosstudien: 95. 1864, nom. illeg. (Karttunen 1984)
- =Zygodon viridissimus f. borealis Correns, Unters. Vermehr. Laubm.: 117. 1899. (Karttunen 1984)
- =Zygodon viridissimus var. vulgaris Malta, Latv. Univ. Raksti 9: 119, 121. 1924, nom. illeg. ≡Zygodon vulgaris Nyholm, Ill. Moss Fl. Fennoscandia. II. Musci: 775. 1969. (Nyholm 1969; Hill et al. 2006)
- =Zygodon viridissimus f. mediterraneus Malta, Latv. Univ. Raksti 9: 119, 122. 1924. ≡Zygodon viridissimus var. mediterraneus (Malta) Giacom., Ist. Bot. Reale Univ. Reale Lab. Crittog. Pavia, Atti 4: 245. 1947. (Podpěra 1954)
- =Zygodon viridissimus var. occidentalis Malta, Latv. Univ. Raksti 9: 122. 1924. (Corley et al. 1981)
- =Zygodon baumgartneri Malta, Latv. Univ. Raksti 9: 147. 1924. (Karttunen 1984)
- =Zygodon rufotomentosus E. Britton ex Malta, Gatt. Zygodon: 54. 1926. (Malta 1926; Anderson et al. 1990) ≡Zygodon viridissimus var. rufotomentosus (E. Britton ex Malta) Grout, N. Amer. Fl. 15A: 34. 1946. (Grout 1946)
Zygodon schenckii Broth., Hedwigia 33(3): 129. 1894. (Brotherus 1894b)
Zygodon schimperi Hampe ex Müll. Hal., Linnaea 18: 671. 1844[1845]. (Müller 1844)
Zygodon semitortus Mitt., J. Proc. Linn. Soc., Bot. 7: 152. 1863. (Mitten 1863)
Zygodon seriatus Thér. & Naveau, Gatt. Zygodon: 65. 1926. (Malta 1926)
Zygodon sibiricus Ignatov, Ignatova, Z. Iwats. & B.C. Tan, Arctoa 8: 59. 1999. (Ignatov et al. 1999)
Zygodon sordidus Müll. Hal., Bot. Zeitung (Berlin) 15: 579. 1857. (Müller 1857a)
Zygodon squarrosus (Taylor) Müll. Hal., Syn. Musc. Frond. 1: 675. 1849. (Müller 1849)

Basionym: Leptostomum squarrosum Taylor, London J. Bot. 5: 43. 1846. (Taylor 1846)
- =Aulacomnium flexifolium Hook. & Wilson, London J. Bot. 5: 448. 1846. (Wijk et al. 1959)
Zygodon stenocarpus Taylor, London J. Bot. 6: 330. 1847. (Taylor 1847; Churchill et al. 2000)
Zygodon stenocarpus var. linearifolius (Mitt.) Malta, Gatt. Zygodon: 73. 1926. (Malta 1926; Churchill et al. 2000)

Basionym: Zygodon linearifolius Mitt., J. Linn. Soc., Bot. 12: 235. 1869. (Mitten 1869; Malta 1926)
Zygodon stenocarpus Taylor var. stenocarpus
Zygodon stirtonii Schimp., Trans. Bot. Soc. Edinburgh 11: 75. 1873. (Stirton 1873; Hodgetts et al. 2020)

≡Zygodon viridissimus subsp. stirtonii (Schimp.) Dixon, Stud. Handb. Brit. Mosses: 236. 1896. (Dixon 1896) ≡Zygodon viridissimus var. stirtonii (Schimp.) I. Hagen, Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1907(13): 15. 1908. (Hagen 1908)
- =Zygodon aristatus Lindb., Hepat. Hibern.: 542. 1875. (Lindberg 1875; Malta 1926)
- =Zygodon teichophilus Stirt., Scott. Naturalist (Perth) 9: 37. 1887. (Wijk et al. 1969)
- =Zygodon viridissimus f. crassinervis Malta, Gatt. Zygodon: 38. 1926. (Malta 1926) ≡Zygodon viridissimus var. crassinervis (Malta) F. Koppe, Abh. Landesmus. Naturk. Prov. Westfalen 12(1): 16. 1949. (Podpěra 1954)
Zygodon strictus Mitt., J. Proc. Linn. Soc., Bot., Suppl. 1: 47. 1859. (Mitten 1859b)

≡Drummondia stricta (Mitt.) Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 3: 106. 1896. (Müller 1896c)
Zygodon subrecurvifolius Broth., Biblioth. Bot. 87: 62. 1916. (Herzog 1916a)
- =Zygodon rigens Broth., Biblioth. Bot. 88: 11. 1920. (Herzog 1921; Wijk et al. 1969)
Zygodon subrecurvifolius Broth. var. subrecurvifolius
Zygodon subrecurvifolius var. viridis (Müll. Hal.) Wijk & Margad., Taxon 10: 26. 1961. (Wijk & Margadant 1961; Churchill et al. 2009)

Basionym: Zygodon ferrugineus var. viridis Müll. Hal., Nuovo Giorn. Bot. Ital., n.s. 4: 120. 1897. (Müller 1897f)
- =Zygodon subrecurvifolius var. recurvatus Malta, Gatt. Zygodon: 61. 1926, nom. illeg. (Malta 1926; Wijk et al. 1969)
Zygodon subsquarrosus Broth. ex Malta, Gatt. Zygodon: 136. 1926. (Malta 1926)
Zygodon tetragonostomus A. Braun ex Bruch & Schimp., Bryol. Eur. 3: 41 (fasc. 4 Mon. 9). 1838. (Bruch & Schimper 1838)
- =Zygodon tetragonostomus var. brevifolius Malta, Gatt. Zygodon: 128. 1926. (Malta 1926)
Zygodon trichomitrius Hook. & Wilson, London J. Bot. 5: 143. 1846 (‘trichomitrion’). (Wilson 1846)
Zygodon trichomitrius var. mildbraedii (Broth.) Malta, Gatt. Zygodon: 63. 1926. (Malta 1926; O'Shea 2006)

Basionym: Zygodon mildbraedii Broth., Wiss. Ergebn. Deut. Zentr.-Afr. Exped., Bot.: 149. 1910. (Brotherus 1910b; Wijk et al. 1969)
Zygodon trichomitrius Hook. & Wilson var. trichomitrius
Zygodon venezuelensis D.G. Griffin, Cryptog. Bryol. Lichénol. 11: 165. 1990. (Griffin III 1990)
Zygodon viridissimus (Dicks.) Brid., Bryol. Univ. 1(1): 592. 1826. (Bridel 1826)

Basionym: Bryum viridissimum Dicks., Fasc. Pl. Crypt. Brit. 4: 9. 1801. (Dickson 1801)

≡Dicranum viridissimum (Dicks.) Turner, Muscol. Hibern. Spic.: 71. 1804. (Turner 1804) ≡Gymnostomum viridissimum (Dicks.) Sm., Engl. Bot. 22: 1583. 1806. (Smith 1805–1806) ≡Amphoridium viridissimum (Dicks.) De Not., Atti Reale Univ. Genova 1: 277. 1869.
Zygodon wightii Dixon & Malta, Notes Roy. Bot. Gard. Edinburgh 19: 288. 1938. (Dixon 1938b)
Zygodon yuennanensis Malta, Gatt. Zygodon 1: 111, 173. 1926. (Malta 1926)

A Synopsis of the Orthotrichaceae

References (870)