| Scientific Name | Authority | Status |
|---|---|---|
| Oncidium trulla | Rchb.f. & Warsz. | synonym |
| Trigonochilum flexuosum | (Kunth) Königer & Schildh. | synonym |
| Oncidium micranthum | Skinner ex Lindl. | ambiguous synonym |
| Oncidium hartwegii | Lindl. | synonym |
| Cyrtochilum cocciferum | (Rchb.f. & Warsz.) Kraenzl. | synonym |
| Trigonochilum cocciferum | (Rchb.f. & Warsz.) Königer & Schildh. | synonym |
| Trigonochilum trulla | (Rchb.f. & Warsz.) Königer & Schildh. | synonym |
| Cyrtochilum hartwegii | (Lindl.) Kraenzl. | synonym |
| Oncidium flexuosum | (Kunth) Lindl. | ambiguous synonym |
| Oncidium cocciferum | Rchb.f. & Warsz. | synonym |
| Cyrtochilum hartwegii var. parviflorum | (Rchb.f.) Kraenzl. | synonym |
| Cyrtochilum trulla | (Rchb.f. & Warsz.) Kraenzl. | synonym |
| Oncidium hartwegii var. parviflorum | Rchb.f. | synonym |
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