Chiapasia nelsonii (Britton & Rose) Britton & Rose, Cactaceae 4: 203. 1923 Chiapasia nelsonii (Britton & Rose) Britton & Rose, Cactaceae 4: 203. 1923is new combination for Epiphyllum nelsonii Britton & Rose in Contr. U.S. Natl. Herb. 16: 257. 1913Taxon for this nameChiapasia nelsonii (Britton & Rose) Britton & Rose