This name is a synonym of Acer confertifolium Merr. & F.P.Metcalf.
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Kalmia 8: 11 1977.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:873946-1.
This name was in version 1 of The Plant List, record kew-2616607.