Kułak, Magdalena, et al. “Tribal and Subtribal Relationship of Epidendroideae Lindl. (Orchidaceae) With Emphasis on Epidendreae Humb., Bonpl. & Kunth Based on MatK Gene”. Biodiversity: Research and Conservation, no. 3-4, Dec. 2006, pp. 205-9, doi:10.14746/biorc.2006.3-4.2.