- Conetquot River, Southside Sportsman's Club, Oakdale1
- Connetquot Brook in private club2
- Contact UM Herbarium8
- East Hampton L. I. [Long Island]1
- East Hampton, Long Island2
- Eastern Long Island, Devon1
- Eastern Long Island, Manorville1
- Eastern Long Island, Montauk, Point1
- Eastern Long Island, Northwest2
- Eastern Long Island, Orient1
- Eastern Long Island; Bridgehampton.1
- Easthampton1
- Eastport, Long Island2
- Edge of small pond, southeast of Flanders1
- Fishers Island (Town of Southold) Barlow Pond, south side of pond, around & west of Bagley Reed's home.1
- Fishers Island (Town of Southold), Wilderness Point. Large fen north of paved road to point.1
- Fishers Island, east end swamp at the east end of the wetland, near Wreck Island.1
- Fishers Island, two springs on Chocomount Cove.1
- Flander1
- Flanders2