This name is a synonym of Sclerolinon digynum (A. Gray) C.M. Rogers.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 18700160) with original publication details: Proc. Amer. Acad. Arts 7(2): 334 1868.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:544449-1.
This name was in version 1 of The Plant List, record tro-18700160, and has not been changed.