This name is a synonym of Geranium hillebrandii Aedo & Muñoz Garm..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name with original publication details: Fl. Hawaiian Isl. 56 1888.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:373156-1.
This name was in version 1 of The Plant List, record kew-2823404, and has not been changed.