This name is a synonym of Diplopterys nigrescens (A.Juss.) W.R.Anderson & C.Davis.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Fl. Bras. Merid. 3: 44 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:313534-2.
This name was in version 1 of The Plant List, record kew-2668707, and has not been changed.