| Scientific Name | Authority | Status |
|---|---|---|
| Cypripedium biflora | B.S.Williams | synonym |
| Cypripedium purpuratum | Wight | ambiguous synonym |
| Paphiopedilum nigritum | (Rchb.f.) Pfitzer | synonym |
| Cypripedium warnerianum | Rchb.f. ex Wittm. | synonym |
| Cypripedium nigritum | Rchb.f. | synonym |
| Cordula nigrita | (Rchb.f.) Rolfe | synonym |
| Cordula barbata | (Lindl.) Rolfe | synonym |
| Cypripedium barbatum var. latisepalum | B.S.Williams ex J.Dix | synonym |
| Cypripedium barbatum | Lindl. | synonym |
| Cypripedium barbatum var. grandiflorum | F.Buyss. | synonym |
| Cypripedium barbatum var. grande | B.S.Williams ex J.Dix | synonym |
| Paphiopedilum barbatum var. nigritum | (Rchb.f.) Pfitzer | synonym |
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