Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler species doubtful

Echinocactus ×contractus Hildm. species synonym

Gymnocalycium monvillei Pfeiff. ex K.Schum., 1898 species doubtful

Gymnocalycium ×contractum (Hildm.) M.H.J.van der Meer species accepted

Echinocactus gibbosus var. typica Speg. variety synonym

Echinocactus capillensis Schick species synonym

Gymnocalycium ×pazoutianum Halda species accepted

Gymnocalycium ottonis Hosseus species doubtful

Gymnocalycium ×heidiae Neuhuber species doubtful

Gymnocalycium gerardii (Böd) Y.Itô species synonym

Gymnocalycium chacoense Amerh. species accepted

Gymnocalycium capillensis (Schick) Hosseus species synonym

Gymnocalycium ochoterenai Backeb., 1936 species accepted

Gymnocalycium capillense (Schick) Hosseus species accepted

Echinocactus gibbosus var. cerebriformis Macloskie variety synonym