This name is a synonym of Massonia depressa Houtt..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 281198) with original publication details: Suppl. Pl. 193 1782.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:538099-1.
This name was in version 1 of The Plant List, record kew-281198, and has not been changed.