Cereus guatemalensis (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 86, 88. 1913 Cereus guatemalensis (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 86, 88. 1913is new combination for Nyctocereus guatemalensis Britton & Rose in Contr. U.S. Natl. Herb. 16: 240. 1913Taxon for this nameCereus guatemalensis (Britton & Rose) Vaupel