Disocactus nelsonii (Britton & Rose) Linding. in Beih. Bot. Centralbl. 61(3): 383. 1942

is new combination for Epiphyllum nelsonii Britton & Rose in Contr. U.S. Natl. Herb. 16: 257. 1913

Holotype: Mexico, Chiapas, near Chicharras, c. 1000 m, 12–15 Feb 1869, E. W. Nelson 3761 (US; isotype: NY)

Taxon for this name