Epiphyllum quezaltecum (Standl. & Steyerm.) L.O.Williams in Fieldiana, Bot. 29: 378. 1962 Epiphyllum quezaltecum (Standl. & Steyerm.) L.O.Williams in Fieldiana, Bot. 29: 378. 1962is new combination for Bonifazia quezalteca Standl. & Steyerm. in Publ. Field Mus. Nat. Hist., Bot. Ser. 23: 66. 1944Taxon for this nameEpiphyllum quezaltecum (Standl. & Steyerm.) L.O.Williams