This name is a synonym of Callitriche platycarpa Kütz..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 348995) with original publication details: Tabl. Syn. Pl. Vasc. France 106 1894.
This name was in version 1 of The Plant List, record kew-348995, and has not been changed.