This name is a synonym of Magnolia xiana Noot..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 335130) with original publication details: J. Trop. Subtrop. Bot. 12: 473 2004.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77064236-1.
This name was in version 1 of The Plant List, record kew-335130.