This name is a synonym of Magnolia baillonii Pierre.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 252905) with original publication details: Bull. Bot. Res., Harbin 23: 266 2003.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:70029679-1.
This name was in version 1 of The Plant List, record kew-252905, and has not been changed.