This name is a synonym of Magnolia elegans (Blume) H.Keng.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 117601) with original publication details: Fl. Forest. Cochinch. 2 1880.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:554717-1.
This name was in version 1 of The Plant List, record kew-117601, and has not been changed.