This name is a synonym of Geranium solanderi Carolin.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Occas. Pap. Univ. Hawaii 32: 6 1937.
This name was in version 1 of The Plant List, record kew-2822999, and has not been changed.