Gymnocalycium pflanzii var. zegarrae (Cárdenas) Donald in Natl. Cact. Succ. J. 26: 100. 1971
Gymnocalycium pflanzii var. zegarrae in Natl. Cact. Succ. J. 26: 100. 1971
is new combination for Gymnocalycium zegarrae in Kakteen And. Sukk. 9(2): 21. 1958