Epiphyllum cooperi (Regel) Clover, Hort. Sec.: 281. 1941 Epiphyllum cooperi (Regel) Clover, Hort. Sec.: 281. 1941is new combination for Phyllocactus cooperi Regel in Gartenflora 33: 357. 1884Taxon for this nameEpiphyllum cooperi (Regel) Clover