This name is a synonym of Dioscorea bulbifera L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 11000374) with original publication details: Pl. A Tuberc. Alim. 172 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:317664-1.
This name was in version 1 of The Plant List, record tro-11000374.