This name is a synonym of Dioscorea urceolata Uline.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 241104) with original publication details: Anales Inst. Biol. Univ. Nac. México 24: 329 1954.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:81145-2.
This name was in version 1 of The Plant List, record kew-241104, and has not been changed.