This name is a synonym of Dioscorea palmeri R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240435) with original publication details: Publ. Carnegie Inst. Wash. 461: 249 1936.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80914-2.
This name was in version 1 of The Plant List, record kew-240435, and has not been changed.