| Scientific Name | Authority | Status |
|---|---|---|
| Oncidium mandibulare | Linden & Rchb.f. | synonym |
| Cyrtochilum mandibulare | (Linden & Rchb.f.) Kraenzl. | synonym |
| Odontoglossum costatum | Lindl. | synonym |
| Cyrtochilum costatum | (Lindl.) Kraenzl. | synonym |
| Odontoglossum divaricatum | Lindl. | synonym |
| Cyrtochilum refractum | (Rchb.f.) Kraenzl. | synonym |
| Oncidium refractum | Rchb.f. | synonym |
| Oncidium costatum | (Lindl.) Beer | synonym |
| Oncidium divaricatum | (Lindl.) Beer | ambiguous synonym |
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