This name is a synonym of Magnolia macklottii (Korth.) Dandy.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 117657) with original publication details: Meded. Lands Plantentuin 17: 315 1896.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:554746-1.
This name was in version 1 of The Plant List, record kew-117657.