| Scientific Name | Authority | Status |
|---|---|---|
| Oncidium flexuosum | G.Lodd. | ambiguous synonym |
| Gomesa megaloptera | (Kraenzl.) M.W.Chase & N.H.Williams | synonym |
| Oncidium flexuosum var. radiatum | Rchb.f. | synonym |
| Oncidium megalopterum | Kraenzl. | synonym |
| Oncidium haematochrysum | Rchb.f. | synonym |
| Coppensia flexuosa | (G.Lodd.) Campacci | synonym |
| Epidendrum lineatum | Vell. | ambiguous synonym |
| Ampliglossum isopterum | (Lindl.) Campacci | synonym |
| Oncidium isopterum | Lindl. | synonym |
| Oncidium haematoxanthum | Rchb.f. ex Lindl. | synonym |
| Gomesa isoptera | (Lindl.) M.W.Chase & N.H.Williams | synonym |
| Coppensia isoptera | (Lindl.) Campacci | synonym |
| Ampliglossum flexuosum | (G.Lodd.) Campacci | synonym |
| Coppensia megaloptera | (Kraenzl.) Szlach. & Kolan. | synonym |
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