Fissidens viridulus var. texanus
| Fissidens viridulus var. texanus (Lesq. & James) Grout, Moss Flora of North America 1: 12. 1936. | BASIONYM: Fissidens texanus Lesquereaux & James 1884. | |
Fissidens andersonii
| Fissidens andersonii Grout, Moss Flora of North America 1: 252. 1939. | | |
Fissidens bryoides var. incurvus
| Fissidens bryoides var. incurvus (Starke) Hübener, Muscologia Germanica 219. 1833. | BASIONYM: Fissidens incurvus Starke ex Röhling 1813. | |
Fissidens bryoides var. pusillus
| Fissidens bryoides var. pusillus (Wilson) Pursell in Allen, Monographs in Systematic Botany from the Missouri Botanical Garden 49: 51. 1994. | BASIONYM: Fissidens viridulus var. pusillus Wilson 1855. | |
Fissidens exiguus
| Fissidens exiguus Sullivant, Musci Alleghanienses 182 [Schedae 44]. 1846. | | |
Fissidens exiguus var. falcatulus
| Fissidens exiguus var. falcatulus (Renauld & Cardot) Grout, Moss Flora of North America 1: 15. 1936. | BASIONYM: Fissidens falcatulus Renauld & Cardot 1894. | |
Fissidens pusillus
| Fissidens pusillus (Wilson) Milde, Bryologia Silesiaca 82. 1869. | BASIONYM: Fissidens viridulus var. pusillus Wilson 1855. | |
Fissidens synoicous
| Fissidens synoicous Sullivant, The Musci and Hepaticae of the United States, reprint 103. 1856. | | |
Fissidens texanus
| Fissidens texanus Lesquereaux & James, Manual of the Mosses of North America 86. 1884. | | |
Fissidens viridulus
| Fissidens viridulus (Swartz) Wahlenberg, Flora Lapponica 334. 1812. | BASIONYM: Dicranum viridulum Swartz 1801. | |
Fissidens viridulus var. pusillus
| Fissidens viridulus var. pusillus Wilson, Bryologia Britannicae 303. 1855. | | |
Fissidens viridulus var. tamarindifolius
| Fissidens viridulus var. tamarindifolius (Turner) Grout, Moss Flora of North America 1: 12. 1936. | BASIONYM: Dicranum tamarindifolium Turner 1804. | |