This name is a synonym of Chionanthus retusus Lindl. & Paxton.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 367393) with original publication details: Bull. Soc. Dendrol. France 1914: 72 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:608732-1.
This name was in version 1 of The Plant List, record kew-367393, and has not been changed.