]> NEBC barcode-00936301 United States of America Massachusetts Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, southeast bay of Doleful Pond, GPS 42 28.055N, 71 5.515W Ceratophyllum demersum Linnaeus Linnaeus 2019-02-01 16:11:54 B. T. Hamlin