Gymnocalycium calochlorum var. proliferum (Backeb.) Backeb., Cactaceae 3: 1718. 1959
Gymnocalycium calochlorum var. proliferum, Cactaceae 3: 1718. 1959
is new combination for Echinocactus prolifer in Kakteen-Freund 1: 132. 1932
Gymnocalycium calochlorum var. proliferum, Cactaceae 3: 1718. 1959
Taxon for this name