This name is a synonym of Magnolia chapensis (Dandy) Sima.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 126671) with original publication details: Acta Sci. Nat. Univ. Sunyatseni 1988(3): 98 1988.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:935630-1.
This name was in version 1 of The Plant List, record kew-126671, and has not been changed.