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 240704) with original publication details: Énum. Pl. Tahiti 35 1873.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:318424-1.
This name was in version 1 of The Plant List, record kew-240704, and has not been changed.