This name is a synonym of Dioscorea modesta Phil..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239807) with original publication details: Anales Acad. Chilena Ci. Nat. 1968: 55 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80693-2.
This name was in version 1 of The Plant List, record kew-239807, and has not been changed.