This name is a synonym of Cephalotaxus harringtonii (Knight ex J.Forbes) K.Koch.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym and as an illegitimate name (record 378619) with original publication details: Fl. Jap. 275 1784.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:263786-1.
This name was in version 1 of The Plant List, record kew-2434147.