This name is a synonym of Potamogeton pusillus L..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26300241) with original publication details: Mem. Torrey Bot. Club 3(2): 46 1893.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:208929-2.
This name was in version 1 of The Plant List, record tro-26300241.