This name is a synonym of Dioscorea togoensis R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239906) with original publication details: Bull. Jard. Bot. État 4: 332 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317761-1.
This name was in version 1 of The Plant List, record kew-239906, and has not been changed.