Oncidium oblongatum Lindl. in Edwards's Bot. Reg. 30: Misc. 4. 1844 sec. Soto-Arenas & al. 2007
- =Oncidium brevifolium A. Rich. & Galeotti in Ann. Sci. Nat., Bot., sér. 3, 3: 26. 1845 syn. sec. Solano Gómez & al. 2020
- =Oncidium pelicanum Mart. ex Lindl. in Edwards's Bot. Reg. 33: t. 70. 1847 syn. sec. Solano Gómez & al. 2020
- =Oncidium xanthochlorum Klotzsch, Index Sem. (Berlin): 12. 1852 syn. sec. Solano Gómez & al. 2020