This name is a synonym of Dioscorea nummularia Lam..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 239787) with original publication details: Pflanzenr. IV, 43: 283 1924.
This name was in version 1 of The Plant List, record kew-239787, and has not been changed.