This name is a synonym of Dypsis betamponensis (Jum.) Beentje & J.Dransf..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 134042) with original publication details: Ann. Mus. Colon. Marseille IV, 6(3): 33 1928 publ. 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:668364-1.
This name was in version 1 of The Plant List, record kew-134042, and has not been changed.