This name is a synonym of Psephellus carbonatus (Klokov) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D24C56C2-4270-406E-954B-B33908E5CEFA) with original publication details: "77, 82" 1948.
This name was in version 1 of The Plant List, record gcc-111490, and has not been changed.