No author No year - Balf. fil. ex Diels. (1919). In: Notes Roy. Bot. Gard. Edinburgh 5(25): 211 (1912), Et Ex Balf. f., Notes Bot. Gard. Edin. 11: 121, Descr. Emend.
There is no corrections for Rhododendron forrestii subsp. forrestii yet.