This name is a synonym of Geranium purpureum Vill..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Mém. Acad. Sci. Lyon, Sect. Sci. 1: 251 1852.
This name was in version 1 of The Plant List, record kew-2823591, and has not been changed.