Gymnocalycium pflanzii (Vaupel) Werderm., Repert. Spec. Nov. Regni Veg. Beih. C: 24, t. 94. 1935
Gymnocalycium pflanzii, Repert. Spec. Nov. Regni Veg. Beih. C: 24, t. 94. 1935
is new combination for Echinocactus pflanzii in Z. Sukkulentenk. 1: 83. 1923
Gymnocalycium pflanzii, Repert. Spec. Nov. Regni Veg. Beih. C: 24, t. 94. 1935