This name is a synonym of Amphilophium buccinatorium (DC.) L.G.Lohmann.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 319853) with original publication details: Biol. Cemt.-Amer., Bot. 2: 490 1882.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:108618-1.
This name was in version 1 of The Plant List, record kew-319853, and has not been changed.