| County | Township | Location | Institution | Year | Month | Day |
| York | Kennebunk | Parsons Beach, Kennebunk, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 4 | 7 |
| Lincoln | Monhegan Island Plantation | Monhegan Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 15 |
| Lincoln | Nobleboro | just north of Oyster Creek, Salt Bay, Damariscotta River, Nobleboro, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 18 |
| County | Township | Location | Reference Title | Year | Citation |
| Lincoln | Monhegan Island Plantation | Monhegan Island: located seaward of Penobscot Bay (43°46'N, 69°19'W); due south of Allen Island and almost equidistant from New Harbor to the northwest and Port Clyde to the north; ~8567m of shoreline. | A comparison of insular seaweed floras from Penobscot Bay, Maine, and other northwest Atlantic islands | 1994 | Mathieson, A.C., E.J. Hehre, J. Hambrook, and J. Gerweck. 1996. A comparison of insular seaweed floras from Penobscot Bay, Maine, and other northwest Atlantic islands. Rhodora 98(896): 369-418 |
| A checklist and distributional index of the benthic marine algae of the north Atlantic Ocean | 0 | South, G.R. and I. Tittley. 1986. A checklist and distributional index of the benthic marine algae of the north Atlantic Ocean. |
| County | Township | Location | Year | Month | Day |