Arthrocereus mello-barretoi Backeb. & Voll in Arch. Jard. Bot. Rio de Janeiro 9: 157. 1949
Arthrocereus mello-barretoi in Arch. Jard. Bot. Rio de Janeiro 9: 157. 1949
is basionym for Arthrocereus melanurus subsp. mello-barretoi in Succulenta (Netherlands) 74(2): 82. 1995