This name is a synonym of Amphilophium granulosum (Klotzsch) L.G.Lohmann.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50202744) with original publication details: Bull. Misc. Inform. Kew 1932: 89–90 1932.
This name was in version 1 of The Plant List, record tro-50202744.