This name is a synonym of Dioscorea sambiranensis R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240140) with original publication details: Ann. Mus. Colon. Marseille II, 8: 291 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317964-1.
This name was in version 1 of The Plant List, record kew-240140.