This name is a synonym of Demosthenesia pearcei (Britton) A.C.Sm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12300874) with original publication details: Bull. Torrey Bot. Club 20(2): 68 1893.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:224630-2.
This name was in version 1 of The Plant List, record tro-12300874, and has not been changed.