This name is a synonym of Dioscorea cayennensis Lam..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240589) with original publication details: Pflanzenr. IV, 43: 299 1924.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80973-2.
This name was in version 1 of The Plant List, record kew-240589.