Gymnocalycium guerkeanum (Heese) Britton & Rose, Cactaceae 3: 154. 1922
Gymnocalycium guerkeanum, Cactaceae 3: 154. 1922
is new combination for Echinocactus guerkeanus in Monatsschr. Kakteenk. 21: 132. 1911
Gymnocalycium guerkeanum, Cactaceae 3: 154. 1922
Taxon for this name