| Orchidaceae | |
Cyrtorchis arcuata subsp. arcuata
| | | |
| Orchidaceae | |
Cyrtorchis arcuata subsp. leonensis
| Summerh. | Kew Bull. 14: 147 | 1960 |
| Orchidaceae | |
Cyrtorchis arcuata subsp. variabilis
| Summerh. | | |
| Orchidaceae | |
Cyrtorchis arcuata var. variabilis
| (Summerh.) Geerinck | in Fl. Rwanda Spermat. 4: 548 | 1988 |
| Orchidaceae | |
Cyrtorchis arcuata subsp. whytei
| Summerh. | | |
| Orchidaceae | |
Cyrtorchis arcuata var. whytei
| (Rolfe) Geerinck | in Fl. Afr. Centr. Spermatoph., Orch.(II): 484 | 1992 |