This name is a synonym of Dioscorea hamiltonii Hook.f..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240812) with original publication details: Icon. Pl. Formosan. 10: 44 1921.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:318499-1.
This name was in version 1 of The Plant List, record kew-240812.