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Thelypteridaceae family

Thelypteris dentata (Forsskål) E. P. St. John, Amer. Fern J. 26(2): 44.  1936.
Bas.:  Polypodium dentatum Forsskål (1775).

Naturalized very common terrestrial in disturbed wet spots at low and medium elevations.
Probably native to the paleotropics. 
Piton Flore Trail.