This name is a synonym of Dioscorea jaliscana S.Watson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240262) with original publication details: Proc. Amer. Acad. Arts 29: 324 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80856-2.
This name was in version 1 of The Plant List, record kew-240262, and has not been changed.