Epiphyllum chrysocardium Mexico, Chiapas, Selva Negra, between Tapalapa and Blanca Rosa near Santa Lucía and Río Napak, 9.2. 1951, MacDougal A 198 (holotype NY 455205, in spirit, isotypes B-10 0277790, B-10 0277791) DNA Bank DB 40112 Mexico, no locality data., Anonymous collector s.n. (Herbarium Berolinense: B GT 0023785)