| Ophioglossaceae | ! |
Botrychium | Sw. | J. Bot. (Schrader) 1800(2): 8, 110 | 1800 [1801] |
| Ophioglossaceae | |
Botrychium decompositum | M. Martens & Galeotti | Nouv. Mém. Acad. Roy. Sci. Bruxelles 15: 15, t. 1 | 1842 |
| Ophioglossaceae | |
Botrychium jenmanii | Underw. | Fern Bull. 8: 59 | 1900 |
| Ophioglossaceae | |
Botrychium subg. Osmundopteris | (Milde) R.T. Clausen | Mem. Torrey Bot. Club 19(2): 93 | 1938 |
| Ophioglossaceae | |
Botrychium subg. Sceptridium | (Lyon) R.T. Clausen | Mem. Torrey Bot. Club 19(2): 24 | 1938 |
| Ophioglossaceae | |
Botrychium schaffneri | Underw. | Bull. Torrey Bot. Club 30: 51 | 1903 |
| Ophioglossaceae | |
Botrychium underwoodianum | Maxon | Bull. Torrey Bot. Club 32: 222, pl. 6 | 1905 |
| Ophioglossaceae | ! |
Botrychium virginianum | (L.) Sw. | J. Bot. (Schrader) 1800(2): 111 | 1800 [1801] |
| Ophioglossaceae | ! |
Cheiroglossa | C. Presl | Suppl. Tent. Pterid. 56 | 1845 [1846] |
| Ophioglossaceae | |
Cheiroglossa palmata | (L.) C. Presl | Suppl. Tent. Pterid. 57 | 1845 [1846] |
| Ophioglossaceae | ! |
Ophioglossaceae | Martinov | Tekhno-Bot. Slovar. 438 | 1820 |
| Ophioglossaceae | ! |
Ophioglossum | L. | Sp. Pl. 2: 1062 | 1753 |
| Ophioglossaceae | |
Ophioglossum crotalophoroides | Walter | Fl. Carol. 256 | 1788 |
| Ophioglossaceae | |
Ophioglossum engelmannii | Prantl | Ber. Deutsch. Bot. Ges. 1: 351 | 1883 |
| Ophioglossaceae | ! |
Ophioglossum nudicaule | L. f. | Suppl. Pl. 443 | 1781 [1782] |
| Ophioglossaceae | ! |
Ophioglossum reticulatum | L. | Sp. Pl. 2: 1063 | 1753 |
| Ophioglossaceae | ! |
Ophioglossum vulgatum | L. | Sp. Pl. 2: 1062–1063 | 1753 |