This name is a synonym of Nymphoides peltata (S.G.Gmel.) Kuntze.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Rep. Bot. Exch. Club Soc. Brit. Isles 3: 437 1913.
This name was in version 1 of The Plant List, record kew-2385080.