This name is a synonym of Ipomoea ochracea (Lindl.) G. Don.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8502497) with original publication details: Proc. Linn. Soc. Lond. 170: 145 1959.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:129533-2.
This name was in version 1 of The Plant List, record tro-8502497.