This name is a synonym of Amphilophium crucigerum (L.) L.G.Lohmann.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 317779) with original publication details: Taxon 24: 123 1975.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:110371-1.
This name was in version 1 of The Plant List, record kew-317779.