This name is a synonym of Rhododendron mariesii Hemsl. & E.H. Wilson.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50060743) with original publication details: Bull. Bot. Res., Harbin 2(4): 78–79 1982.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:900762-1.
This name was in version 1 of The Plant List, record tro-50060743, and has not been changed.