| H.G.A. Engler, Pflanzenr., vol. 50(II): [Heft 80], (Orchidaceae - Monandreae - Tribus Oncidiinae, Odontoglosseae II (Genera n. 352-357), Pseudomonopodiales): p. 151, fig. 14 (1923) [30] | |
| Illustration contributed by: | University of Toronto Library, Canada |