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Hydrocharitaceae family

Najas guadalupensis
(Sprengel) Magnus
, Beitr. Kenntn. Najas viii.  1870.
Bas.: Caulinia guadalupensis Sprengel (1824). 

Indigenous aquatic herb.    
St. Lucia, Antigua, Guadeloupe, rest of Caribbean, North America, Mesoamerica, South America.
Specimen collected by Jeremie (810, UPRRP). I have not found this species.