| Scientific Name | Authority | Status |
|---|---|---|
| Neoruschia cogniauxiana | (Schltr.) Cath. & V.P.Castro | synonym |
| Oncidium cogniauxianum | Schltr. | synonym |
| Oncidium alfredii | Kraenzl. | synonym |
| Oncidium gracillimum | Cogn. | ambiguous synonym |
| Oncidium zikanianum | Hoehne & Schltr. | synonym |
| Gomesa gracillima | M.W.Chase & N.H.Williams | synonym |
| Alatiglossum cogniauxianum | (Schltr.) Baptista | synonym |
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