This name is a synonym of Magnolia angatensis Blanco.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 117492) with original publication details: Blumea 32: 375 1987.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:953765-1.
This name was in version 1 of The Plant List, record kew-117492, and has not been changed.