This name is a synonym of Archirhodomyrtus paitensis (Schltr.) Burret.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 132703) with original publication details: Bot. Jahrb. Syst. 39: 203 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:600088-1.
This name was in version 1 of The Plant List, record kew-132703, and has not been changed.