This name is a synonym of Dendrobium macranthum A.Rich..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 58803) with original publication details: Bull. Soc. Bot. France 76: 300 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:628347-1.
This name was in version 1 of The Plant List, record kew-58803, and has not been changed.