Epiphyllum hookeri Haw. [ Cereus hookeri (Haw.) Pfeifer]
no HD illustration available (m1)
Epiphyllum hookeri Haw. [Cactaceae]
L.K.G. Pfeiffer, F. Otto, Abbild. Beschr. Cact. (Coloured version), vol. 1 : p. 5, t. 5 (1839)