This name is a synonym of Wendlandia luzoniensis var. williamsii (Merr.) Cowan.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 214561) with original publication details: Philipp. J. Sci., C 10: 101 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:770531-1.
This name was in version 1 of The Plant List, record kew-214561, and has not been changed.