| Botrychiaceae | ** |
Botrychiaceae
| Nakai | J. Jap. Bot. 24: 8–14 | 1949 |
| Botrychiaceae | ! |
Botrychiaceae
| Horan. | Char. Ess. Fam. 15 | 1847 |
| Helminthostachyaceae | |
Helminthostachyaceae
| Ching | Bull. Fan Mem. Inst. Biol., Bot. 10: 235 | 1941 |
| Ophioglossaceae | ! |
Ophioglossaceae
| Martinov | Tekhno-Bot. Slovar. 438 | 1820 |