This name is a synonym of Echinopsis spachiana (Lem.) Friedrich & G.D.Rowley.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5106946) with original publication details: Boll. Reale Orto Bot. Giardino Colon. Palermo 8: 237 1909.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:257139-2.
This name was in version 1 of The Plant List, record tro-5106946, and has not been changed.