This name is a synonym of Acer tutcheri subsp. formosanum A.E.Murray.
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: J. Coll. Sci. Imp. Univ. Tokyo 30(1): 70 1911.
This name was in version 1 of The Plant List, record kew-2616610.