Wigginsia stegmannii (Backeb.) D.M.Porter in Taxon 13(6): 211. 1964 Wigginsia stegmannii (Backeb.) D.M.Porter in Taxon 13(6): 211. 1964is new combination for Malacocarpus stegmannii Backeb., Cactaceae 3: 1623. 1959Taxon for this nameWigginsia stegmannii (Backeb.) D.M.Porter