This name is a synonym of Castanopsis sieboldii var. lutchuensis (Koidz.) T.Yamaz. & Mashiba.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 114610) with original publication details: Bot. Mag. (Tokyo) 39: 3 1925.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:358856-1.
This name was in version 1 of The Plant List, record kew-114610, and has not been changed.