This name is a synonym of Berberis ruscifolia Lam..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Revista Mus. La Plata, Secc. Paleontol. 5: 285 1893.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:31539-2.
This name was in version 1 of The Plant List, record kew-2674393, and has not been changed.