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A history of the game birds wild fowl and shore birds of Massachusetts and adjacent states Plate XXXV . Fig Potamopeton praelongus Fig Potamogeton perfoliatus Fig Potamogeton foliosus Fig Potamogeton pusillus PLATE XXXV WIDERANGING SPECIES OF PONDWEEDS From Morong After Biological Survey Plate XXXV Illustration biodiversitylibrary