This name is a synonym of Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Handb. Kakteenkult. 186 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:131898-1.
This name was in version 1 of The Plant List, record kew-2781931, and has not been changed.