This name is a synonym of Dioscorea gaumeri R.Knuth.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50232729) with original publication details: Nat. Pflanzenfam. 2(5): 87 1897.
This name was in version 1 of The Plant List, record tro-50232729, and has not been changed.