Cereus callianthus (Fuaux & Backeb.) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 83. 1995 Cereus callianthus (Fuaux & Backeb.) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 83. 1995is new combination for Monvillea calliantha Fuaux & Backeb. in Backeberg, Cactaceae 4: 2312. 1960Taxon for this nameCereus callianthus (Fuaux & Backeb.) P.J.Braun & Esteves