This name is a synonym of Amphilophium cynanchoides (DC.) L.G.Lohmann.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 317786) with original publication details: Abh. Königl. Ges. Wiss. Göttingen 24: 257 1879.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:110368-1.
This name was in version 1 of The Plant List, record kew-317786, and has not been changed.