This name is a synonym of Dioscorea laxiflora Mart. ex Griseb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 240378) with original publication details: Notizbl. Bot. Gart. Berlin-Dahlem 7: 214 1917.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:80893-2.
This name was in version 1 of The Plant List, record kew-240378, and has not been changed.