This name is a synonym of Dioscorea melanophyma Prain & Burkill.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 241019) with original publication details: Pflanzenr. IV, 43: 142 1924.
This name was in version 1 of The Plant List, record kew-241019, and has not been changed.