This name is a synonym of Rhododendron orbiculare Decne..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50060088) with original publication details: J. As. Soc. North China Branch 7: 216 1873.
This name was in version 1 of The Plant List, record tro-50060088.