Gymnocalycium platense (Speg.) Britton & Rose, Cactaceae 3: 163. 1922 Gymnocalycium platense (Speg.) Britton & Rose, Cactaceae 3: 163. 1922is new combination for Echinocactus platensis Speg., Contr. Fl. Sierra Vent.: 28. 1896Taxon for this nameGymnocalycium platense (Speg.) Britton & Rose