This name is a synonym of Brasenia schreberi J.F.Gmel..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 22600242) with original publication details: Fl. Bor.-Amer. 1: 324, pl. 29 1803.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:605354-1.
This name was in version 1 of The Plant List, record tro-22600242, and has not been changed.