| Scientific Name | Authority | Status |
|---|---|---|
| Oncidium suttonii | Bateman ex Lindl. | synonym |
| Oncidium pelicanum | Lindl. | synonym |
| Oncidium suave | Lindl. | synonym |
| Oncidium durangense | Hágsater | synonym |
| Oncidium macropterum | A.Rich. & Galeotti | synonym |
| Oncidium funereum | Lindl. | ambiguous synonym |
| Oncidium acrochordonia | Rchb.f. ex Kraenzl. | synonym |
| Oncidium wendlandianum | Rchb.f. | synonym |
| Oncidium reflexum var. caesium | John Edwards | synonym |
| Oncidium tayleurii | Lindl. | synonym |
| Oncidium reflexum var. intermedium | Regel | synonym |
| Oncidium liebmannii | Rchb.f. ex Kraenzl. | synonym |
| Oncidium uncia | Rchb.f. ex Kraenzl. | synonym |
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