This name is a synonym of Xanthomyrtus koebrensis (Gibbs) Diels.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 132560) with original publication details: Fl. Arfak Mts. 152 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:599900-1.
This name was in version 1 of The Plant List, record kew-132560, and has not been changed.