| Sphagnaceae | ** |
Sphagnum achenbachianum
| Breutel ex Warnst. | Pflanzenr. 51: 98 (Sphagnol. Univ. 98) | 1911 |
| Sphagnaceae | ! |
Sphagnum aciphyllum
| Müll. Hal. | Flora 70: 419 | 1887 |
| Sphagnaceae | ** |
Sphagnum aconiense
| De Not. | Öfvers. Kongl. Vetensk.-Akad. Förh. 19: 139 | 1862 |
| Sphagnaceae | |
Sphagnum aculeatum
| Warnst. | Bot. Centralbl. 9: 97 | 1882 |
| Sphagnaceae | ! |
Sphagnum acutifolioides
| Warnst. | Hedwigia 29: 192, 4 f. 4; 7 f. 16 | 1890 |
| Sphagnaceae | |
Sphagnum acutifolium
| Ehrh. ex Schrad. | Syst. Samm. Cryptog. Gew. 1: 8 | 1796 |
| Sphagnaceae | * |
Sphagnum acutiforme
| Schlieph. & Warnst. | Flora 67: 495 | 1884 |
| Sphagnaceae | ! |
Sphagnum acutirameum
| H.A. Crum | Bryologist 95: 423. f. 24–31 | 1992 |
| Sphagnaceae | |
Sphagnum acutum
| Warnst. | Allg. Bot. Z. Syst. 1: 136 | 1895 |
| Sphagnaceae | ! |
Sphagnum aequalipunctatum
| H.A. Crum | Bryologist 98: 589 | 1995 |
| Sphagnaceae | |
Sphagnum aequifolium
| Warnst. | Hedwigia 30: 22. 1 f. 9a–b; 4i | 1891 |
| Sphagnaceae | ! |
Sphagnum aequiporosum
| Warnst. | Hedwigia 57: 75 | 1915 |
| Sphagnaceae | * |
Sphagnum aequiporosum
| H.A. Crum | J. Hattori Bot. Lab. 77: 235. f. 2 | 1994 |
| Sphagnaceae | ! |
Sphagnum affine
| Renauld & Cardot | Rev. Bryol. 12: 44 | 1885 |
| Sphagnaceae | ** |
Sphagnum affine
| Ångstr. | Bull. Soc. Hist. Nat. Autun 10: 244 [Répert. Sphagnol. 12] | 1897 |
| Sphagnaceae | ! |
Sphagnum africanum
| Welw. & Duby | Mém. Soc. Phys. Genève 21: 216. 1 f. 1 | 1872 |
| Sphagnaceae | |
Sphagnum afrocrassicladum
| Dixon & Sherrin | J. Bot. 76: 218. 16 | 1938 |
| Sphagnaceae | |
Sphagnum alabamae
| Warnst. | Hedwigia 47: 94. a–c | 1907 |
| Sphagnaceae | ** |
Sphagnum alaskanum
| Warnst. | Pflanzenr. 51: 197 (Sphagnol. Univ. 197) | 1911 |
| Sphagnaceae | ! |
Sphagnum alaskense
| R.E. Andrus & Janssens | Bryologist 106: 435. f. 1, 3 | 2003 |
| Sphagnaceae | ** |
Sphagnum albescens
| Huebener & Genth | Deutschl. Leberm. 3: no. 73 | 1837 |
| Sphagnaceae | ** |
Sphagnum albicans
| Huebener & Genth | Jahrb. Vereins Naturk. Herzogth. Nassau 5: 36 | 1849 |
| Sphagnaceae | |
Sphagnum albicans
| Warnst. | Hedwigia 32: 3. 1 f. 2 a–f | 1893 |
| Sphagnaceae | ! |
Sphagnum alegrense
| Warnst. | Hedwigia 47: 83. 2b | 1907 |
| Sphagnaceae | ! |
Sphagnum algentryi
| H.A. Crum | Bryologist 98: 265. f. 1a–g | 1995 |
| Sphagnaceae | |
Sphagnum allionii
| Warnst. | Pflanzenr. 51: 502. 82 b (Sphagnol. Univ. 502. 82 b) | 1911 |
| Sphagnaceae | |
Sphagnum aloysii-sabaudiae
| G. Negri | Ann. Bot. (Rome) 7: 161 | 1908 |
| Sphagnaceae | ** |
Sphagnum alpinum
| L. | Sp. Pl. 2: 1106 | 1753 |
| Sphagnaceae | ** |
Sphagnum alpinum
| Ruel. | Anleit. Harz 2: 239 | 1786 |
| Sphagnaceae | |
Sphagnum alpinum
| Schrank | Baier. Fl. 2: 435 | 1789 |
| Sphagnaceae | ! |
Sphagnum amazonense
| H.A. Crum | Novon 12: 444. f. 24–28 | 2002 |
| Sphagnaceae | ! |
Sphagnum amazonicum
| H.A. Crum & W.R. Buck | Brittonia 44: 449. f. 1, 3 | 1992 |
| Sphagnaceae | |
Sphagnum ambiguum
| Huebener | Muscol. Germ. 25 | 1833 |
| Sphagnaceae | |
Sphagnum amblyphyllum
| (Russow) Zick. | Bull. Soc. Imp. Naturalistes Moscou, n.s. 14(3): 278 | 1901 |
| Sphagnaceae | |
Sphagnum americanum
| Warnst. ex H.K.G. Paul | Biblioth. Bot. 88: 3 | 1920 |
| Sphagnaceae | ! |
Sphagnum amoenoides
| H.A. Crum | Contr. Univ. Michigan Herb. 147. f. 1 | 1997 |
| Sphagnaceae | ! |
Sphagnum amoenum
| Warnst. | Bot. Jahrb. Syst. 27: 252 | 1899 |
| Sphagnaceae | ** |
Sphagnum amplyphyllum
| Russow ex Zick. | Bull. Soc. Imp. Naturalistes Moscou, n.s. 14: 278 | 1900 |
| Sphagnaceae | ! |
Sphagnum andersonianum
| R.E. Andrus | Bryologist 83: 60. f. 1–7 | 1980 |
| Sphagnaceae | |
Sphagnum andinum
| Hampe | Ann. Sci. Nat., Bot., sér. 5, 5: 334 | 1866 |
| Sphagnaceae | ! |
Sphagnum andrusii
| (H.A. Crum) Flatberg | Lindbergia 30: 103 | 2005 |
| Sphagnaceae | ! |
Sphagnum angermanicum
| Melin | Svensk Bot. Tidskr. 13(1): 21 | 1919 |
| Sphagnaceae | |
Sphagnum angolense
| Warnst. | Bull. Herb. Boissier, sér. 2, 1: 1086 | 1901 |
| Sphagnaceae | ** |
Sphagnum angstroemii
| C. Hartm. | Handb. Skand. Fl. (ed. 7) 399 | 1858 |
| Sphagnaceae | ! |
Sphagnum angustifolium
| (Russow) C.E.O. Jensen | Bih. Kongl. Svenska Vetensk.-Akad. Handl. 16 Afd. 3(9): 9, 46 | 1891 |
| Sphagnaceae | ** |
Sphagnum angustifrons
| Müll. Hal. ex Warnst. | Hedwigia 30: 38 | 1891 |
| Sphagnaceae | |
Sphagnum angustilimbatum
| Warnst. | Allg. Bot. Z. Syst. 1: 135 | 1895 |
| Sphagnaceae | |
Sphagnum anisoporum
| Warnst. & Cardot | Bull. Herb. Boissier, sér. 2, 7: 710 | 1907 |
| Sphagnaceae | ! |
Sphagnum annulatum
| H. Lindb. ex Warnst. | Bot. Centralbl. 76(13): 422–423 | 1898 |
| Sphagnaceae | * |
Sphagnum annulatum
| H. Lindb. | Meddeland. Soc. Fauna Fl. Fenn. 24: 66, 200 | 1901 |
| Sphagnaceae | |
Sphagnum antarcticum
| Mitt. | J. Proc. Linn. Soc., Bot. 4: 100 | 1859 |
| Sphagnaceae | ! |
Sphagnum antarense
| Wijk & Zanten | Nova Guinea, Bot. 10(16): 266. pl. 23: f. 1 | 1964 |
| Sphagnaceae | |
Sphagnum antillarum
| Besch. | Ann. Sci. Nat., Bot., sér. 6, 3: 263 | 1876 |
| Sphagnaceae | * |
Sphagnum antillarum
| Schimp. ex Warnst. | Hedwigia 30: 147. 15 f. 11: 21 f. o | 1891 |
| Sphagnaceae | ! |
Sphagnum antioquiense
| H.A. Crum | Bryologist 98: 583. f. 5 | 1995 |
| Sphagnaceae | |
Sphagnum antiquasporites
| L.R. Wilson & R.M. Webster | Amer. J. Bot. 33: 273. 2 | 1946 |
| Sphagnaceae | ! |
Sphagnum aongstroemii
| C. Hartm. | Handb. Skand. Fl. (ed. 7) 399 | 1858 |
| Sphagnaceae | |
Sphagnum apiculatum
| H. Lindb. | Sitzungsber. Deutsch. Naturwiss.-Med. Vereins Böhmen "Lotos" Prag 51: 130 | 1903 |
| Sphagnaceae | |
Sphagnum apollinairei
| Paris & Warnst. | Hedwigia 47: 114 | 1908 |
| Sphagnaceae | |
Sphagnum apopenneysii
| B.C. Tan, Ignatov, Ignatova & Mishler | Philipp. J. Syst. Biol. 12(1): 34 | 2018 |
| Sphagnaceae | ** |
Sphagnum aquaticum
| Russow | Pflanzenr. 51: 266 (Sphagnol. Univ. 266) | 1911 |
| Sphagnaceae | |
Sphagnum aquatile
| Warnst. | Verh. Bot. Vereins Prov. Brandenburg 41: 31 | 1899 |
| Sphagnaceae | |
Sphagnum aracense
| Warnst. | Hedwigia 47: 107 | 1907 |
| Sphagnaceae | |
Sphagnum arbogastii
| Renauld & Cardot | Bull. Soc. Roy. Bot. Belgique 32(2): 8 | 1893 |
| Sphagnaceae | ** |
Sphagnum arboreum
| Huds. | Fl. Angl. 396 | 1762 |
| Sphagnaceae | ** |
Sphagnum arboreum
| Schimp. | Bot. Gaz. 15: 252 | 1890 |
| Sphagnaceae | * |
Sphagnum arboreum
| Schimp. ex Warnst. | Hedwigia 30: 32. 2 f. 23; 5r | 1891 |
| Sphagnaceae | * |
Sphagnum arboreum
| L. ex Jolycl. | Syst. Sex. Vég. 2: 747 | 1803 |
| Sphagnaceae | ! |
Sphagnum arcticum
| Flatberg & Frisvoll | Bryologist 87: 143. f. 1–22 | 1984 |
| Sphagnaceae | |
Sphagnum armoricum
| Warnst. | Pflanzenr. 51: 394 (Sphagnol. Univ. 394) | 1911 |
| Sphagnaceae | |
Sphagnum artariae
| Warnst. | Pflanzenr. 51: 350. 58 E, 59 F (Sphagnol. Univ. 350. 58 E, 59 F) | 1911 |
| Sphagnaceae | |
Sphagnum aschenbachianum
| Breutel | Flora 7: 439 | 1824 |
| Sphagnaceae | ** |
Sphagnum aschenbachii
| Breutel ex Lindb. | Eur. Hvitmoss. 55 | 1882 |
| Sphagnaceae | |
Sphagnum assamicum
| Müll. Hal. | Flora 70: 411 | 1887 |
| Sphagnaceae | |
Sphagnum atlanticum
| R.E. Andrus | Bryologist 110: 274 | 2007 |
| Sphagnaceae | ! |
Sphagnum atroligneum
| H.A. Crum | Contr. Univ. Michigan Herb. 21: 147. f. 2 | 1997 |
| Sphagnaceae | |
Sphagnum attenuatum
| Dixon | J. Bot. 79: 57 | 1941 |
| Sphagnaceae | ! |
Sphagnum aureum
| C.B. McQueen | Bryologist 92: 405, f. 1–8 | 1989 |
| Sphagnaceae | ! |
Sphagnum auriculatum
| Schimp. | Mém. Hist. Nat. Sphaignes 79–80, pl. 24 | 1857 |
| Sphagnaceae | * |
Sphagnum auriculatum
| Ångstr. | Öfvers. Kongl. Vetensk.-Akad. Förh. 21: 203 | 1864 |
| Sphagnaceae | * |
Sphagnum auriculatum
| Lesq. | Mem. Calif. Acad. Sci. 1: 4 | 1867 |
| Sphagnaceae | ! |
Sphagnum austinii
| Sull. | Musci Appalach. 2 [Schedae 3] | 1870 |
| Sphagnaceae | ! |
Sphagnum australe
| Mitt. | Fl. Tasman. 2: 162 | 1859 |
| Sphagnaceae | * |
Sphagnum australe
| Schimp. | Bot. Gaz. 15: 250 | 1890 |
| Sphagnaceae | * |
Sphagnum australe
| (Cookson ex Balme) Drozhashchikh | Trudy Vsesoyuzn. Neft. Nauchno-Issl. Geol.-Razved. Inst., n.s. 177: 14 | 1961 |
| Sphagnaceae | ! |
Sphagnum austroamericanum
| H.A. Crum | J. Hattori Bot. Lab. 74: 151. f. 4 | 1993 |
| Sphagnaceae | * |
Sphagnum austroamericanum
| H.A. Crum | Bryologist 98: 588. f. 9 | 1995 |
| Sphagnaceae | |
Sphagnum austromolle
| Müll. Hal. | Flora 70: 419 | 1887 |
| Sphagnaceae | ! |
Sphagnum azuayense
| H.A. Crum | J. Hattori Bot. Lab. 63: 94. f. 87–94 | 1987 |
| Sphagnaceae | |
Sphagnum bahiense
| Warnst. | Pflanzenr. 51: 502. 81 F (Sphagnol. Univ. 502. 81 F) | 1911 |
| Sphagnaceae | |
Sphagnum bakeri
| Warnst. | Pflanzenr. 51: 414 (Sphagnol. Univ. 414) | 1911 |
| Sphagnaceae | |
Sphagnum balfourianum
| Warnst. | Hedwigia 30: 153. 17 f. 21; 22 f. 2 | 1891 |
| Sphagnaceae | ! |
Sphagnum balslevii
| H.A. Crum | J. Hattori Bot. Lab. 77: 249. f. 12 | 1994 |
| Sphagnaceae | ! |
Sphagnum balticum
| (Russow) C.E.O. Jensen | Festskr. Bot. Foren. Kjøbenhavn 100 | 1890 |
| Sphagnaceae | ! |
Sphagnum barclayae
| H.A. Crum | J. Bryol. 15: 531. f. 1–8 | 1989 |
| Sphagnaceae | ! |
Sphagnum bartlettianum
| Warnst. | Pflanzenr. 51: 105. 29 C (Sphagnol. Univ. 105. 29 C) | 1911 |
| Sphagnaceae | ** |
Sphagnum bartlettii
| (Warnst.) Warnst. ex A.L. Andrews | Bryologist 15: 9 | 1912 |
| Sphagnaceae | |
Sphagnum batumense
| Warnst. | Schriften Naturf. Ges. Danzig 9(2): 160 | 1896 |
| Sphagnaceae | |
Sphagnum bavaricum
| Warnst. | Hedwigia 47: 84 | 1907 |
| Sphagnaceae | |
Sphagnum beccarii
| Hampe | Nuovo Giorn. Bot. Ital. 4: 278 | 1872 |