This name is a synonym of Dioscorea bryoniifolia Poepp..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 240236) with original publication details: Trav. Chile 2: 531 1826.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:318050-1.
This name was in version 1 of The Plant List, record kew-240236, and has not been changed.