This name is a synonym of Dioscorea schimperiana Hochst. ex Kunth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240888) with original publication details: Bot. Jahrb. Syst. 15: 148 1892.
This name was in version 1 of The Plant List, record kew-240888, and has not been changed.