Gymnocalycium megatae var. che-guevarai Milt variety synonym

Gymnocalycium megatae var. che-guevarae Milt variety synonym

Gymnocalycium megatae subsp. zecheri Amerh. subspecies synonym

Gymnocalycium tudae Y.Itô species synonym

Gymnocalycium megatae Y.Itô species synonym

Gymnocalycium marsoneri subsp. marsoneri subspecies accepted

Gymnocalycium tudae var. pseudomalacocarpus (Backeb.) Donald variety synonym

Gymnocalycium tudae var. bolivianum F.Ritter variety synonym

Gymnocalycium pflanzii var. eytianum (Cárdenas) Donald variety synonym

Gymnocalycium onychacanthum Y.Itô species synonym

Gymnocalycium megatae subsp. matoense (Buining & Brederoo) H.Till subspecies synonym

Gymnocalycium matoense Buining & Brederoo species synonym

Gymnocalycium marsoneri subsp. matoense (Buining & Brederoo) P.J.Braun & Esteves subspecies accepted

Gymnocalycium hamatum F.Ritter species synonym

Gymnocalycium friedrichii subsp. eytianum (Cárdenas) H.Till & Amerh. subspecies synonym

Gymnocalycium fricianum Plesník species synonym

Gymnocalycium eytianum Cárdenas species synonym

Gymnocalycium delaetii subsp. marsoneri (Fric ex Y.Itô) H.Till & Amerh. subspecies synonym

Gymnocalycium pseudomalacocarpum Backeb. species synonym

Gymnocalycium itatiquense H.Till & Amerh. species synonym

Gymnocalycium marsoneri subsp. megatae (Y.Itô) G.J.Charles subspecies synonym