This name is a synonym of Magnolia sumatrana var. glauca (Blume) Figlar & Noot..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 117476) with original publication details: Nat. Pflanzenfam. 3(2): 16 1888.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:554650-1.
This name was in version 1 of The Plant List, record kew-117476.