| Genus Name | Genus | Grex Name | Year | Author | |
|---|---|---|---|---|---|
| Add+ | Spiranthes | Spir | lucida | 1908 | (H.H.Eaton) Ames |
| Add+ | Ibidium | Ibidium | plantagineum | 1905 | House |
| Add+ | Neottia | Neot | lucida | 1832 | H.H.Eaton |
| Add+ | Triorchis | Triorchis | plantagineus | 1913 | (Raf.) Nieuwl. |
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