This name is a synonym of Chionanthus longipetalus (Merr.) Kiew.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 353808) with original publication details: Univ. Calif. Publ. Bot. 15: 249 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:610251-1.
This name was in version 1 of The Plant List, record kew-353808, and has not been changed.