This name is a synonym of Eurya boninensis Koidz..
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: J. Jap. Bot. 70: 272 1995.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:986063-1.
This name was in version 1 of The Plant List, record kew-2804890, and has not been changed.