This name is a synonym of Elodea potamogeton (Bertero) Espinosa.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 309465) with original publication details: Darwiniana 12: 307 1961.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:90087-2.
This name was in version 1 of The Plant List, record kew-309465.