This name is a synonym of Callitriche cophocarpa Sendtn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 31669) with original publication details: Obs. Crit. Pl. Suec. 19 1854.
This name was in version 1 of The Plant List, record kew-31669.