This name is a synonym of Gymnocalycium gibbosum (Haw.) Pfeiff. ex Mittler.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5103450) with original publication details: Enum. Diagn. Cact. 74 1837.
This name was in version 1 of The Plant List, record tro-5103450.