This name is a synonym of Coryphantha pycnacantha (Mart.) Lem..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50218552) with original publication details: Allg. Gartenzeitung 25: 239 1857.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:134438-1.
This name was in version 1 of The Plant List, record tro-50218552.