Gymnocalycium friedrichii (Werderm.) Pazout in Friciana IV 23: 3. 1964
Gymnocalycium friedrichii in Friciana IV 23: 3. 1964
is new combination for Gymnocalycium mihanovichii var. friedrichii in Repert. Spec. Nov. Regni Veg. Sonderbeih. C 29: t. 113. 1936
Gymnocalycium friedrichii in Friciana IV 23: 3. 1964