This name is a synonym of Dendrochilum magnum Rchb.f..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 2248) with original publication details: Orchid Rev. 12: 220 1904.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:614782-1.
This name was in version 1 of The Plant List, record kew-2248, and has not been changed.