This name is a synonym of Dioscorea martiana Griseb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240463) with original publication details: Pflanzenr. IV, 43: 218 1924.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80925-2.
This name was in version 1 of The Plant List, record kew-240463, and has not been changed.