This name is a synonym of Xantolis boniana var. pavieana (Pierre ex Dubard) P.Royen.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 164334) with original publication details: Candollea 9: 417 1942.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:789113-1.
This name was in version 1 of The Plant List, record kew-164334, and has not been changed.