This name is a synonym of Rhododendron oreodoxa var. fargesii (Franch.) D.F. Chamb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12305030) with original publication details: J. Bot. (Morot) 9(21): 390 1895.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:332413-1.
This name was in version 1 of The Plant List, record tro-12305030, and has not been changed.