This name is a synonym of Dioscorea hondurensis R.Knuth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239837) with original publication details: Contr. Univ. Michigan Herb. 6: 5 1941.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80703-2.
This name was in version 1 of The Plant List, record kew-239837, and has not been changed.