This name is a synonym of Psephellus gracillimus (Wagenitz) Wagenitz.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 04E0F7CF-CD85-48BE-A4F8-B24E76F7B364) with original publication details: 225 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190588-1.
This name was in version 1 of The Plant List, record gcc-111061, and has not been changed.