This name is a synonym of Echinopsis pentlandii (Hook.) Salm-Dyck ex A.Dietr..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Monatsschr. Kakteenk. 7: 52 1897.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:88454-2.
This name was in version 1 of The Plant List, record kew-2783564.