This name is a synonym of Rhododendron traillianum var. dictyotum (Balf. f. ex Tagg) D.F. Chamb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12304983) with original publication details: Notes Roy. Bot. Gard. Edinburgh 15(75): 309–310 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:332333-1.
This name was in version 1 of The Plant List, record tro-12304983, and has not been changed.