This name is a synonym of Magnolia grandiflora L..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 335132) with original publication details: Bot. Mag. 45: t. 1952 1817.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:149297-2.
This name was in version 1 of The Plant List, record kew-335132.