Acanthorhipsalis monacantha var. samaipatana (Cárdenas) Backeb., Cactaceae 2: 701. 1959
Acanthorhipsalis monacantha var. samaipatana, Cactaceae 2: 701. 1959
is new combination for Rhipsalis monacantha var. samaipatana in Natl. Cact. Succ. J. 12: 85. 1957