This name is a synonym of Magnolia sphaerantha (C.Y.Wu ex Y.W.Law & Y.F.Wu) Sima.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 126702) with original publication details: Ann. Missouri Bot. Gard. 80: 1064 1993.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:974107-1.
This name was in version 1 of The Plant List, record kew-126702, and has not been changed.