This name is a synonym of Magnolia griffithii Hook.f. & Thomson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 126724) with original publication details: Bull. Soc. Bot. France 52(4): 42 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:554973-1.
This name was in version 1 of The Plant List, record kew-126724, and has not been changed.