Phyllocactus pumilus (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 117. 1913 Phyllocactus pumilus (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 117. 1913is new combination for Epiphyllum pumilum Britton & Rose in Contr. U.S. Natl. Herb. 16: 258. 1913Taxon for this namePhyllocactus pumilus (Britton & Rose) Vaupel