Phyllocactus guatemalensis (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 116. 1913 Phyllocactus guatemalensis (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 116. 1913is new combination for Epiphyllum guatemalense Britton & Rose in Contr. U.S. Natl. Herb. 16: 257. 1913Taxon for this namePhyllocactus guatemalensis (Britton & Rose) Vaupel