This name is a synonym of Rhododendron yunnanense Franch..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12303845) with original publication details: Notes Roy. Bot. Gard. Edinburgh 5(25): 217–218 1912.
This name was in version 1 of The Plant List, record tro-12303845, and has not been changed.