| County | Township | Location | Institution | Year | Month | Day |
| York | Wells | Wells Harbor Marina | University of New Hampshire - Macroalgal Collection (NHA) | 2023 | 8 | 9 |
| Knox | Rockland | Journey's End Marina | University of New Hampshire - Macroalgal Collection (NHA) | 2023 | 8 | 7 |
| Sagadahoc | Georgetown | Georgetown, Sagadahoc County | University of New Hampshire - Macroalgal Collection (NHA) | 2023 | 8 | 7 |
| Sagadahoc | Georgetown | Derecktor Robinhood Marine Center | University of New Hampshire - Macroalgal Collection (NHA) | 2023 | 8 | 7 |
| York | York | Nubble | University of New Hampshire - Macroalgal Collection (NHA) | 2021 | 10 | 15 |
| Cumberland | Freeport | Brewer Freeport Marina, Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2018 | 7 | 25 |
| Cumberland | Portland | Portland Harbor Marine, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2018 | 7 | 25 |
| Unknown | UNKNOWN | Cashes ledge, 80 miles due East of Cape Ann, Gulf of Maine, SCUBA, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2015 | 6 | 14 |
| Unknown | Unknown | Cashes Ledge, 80 miles east of Cape Ann, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2015 | 6 | 14 |
| York | York | Nubble Light, Cape Neddick, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2013 | 8 | 15 |
| York | Biddeford | Wood Island, mouth of the Saco River and at the entrance of Biddeford Pool, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2013 | 8 | 14 |
| Cumberland | Freeport | Brewer's Marina, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2013 | 8 | 8 |
| Cumberland | South Portland | Spring Point Marina, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2013 | 8 | 4 |
| York | Wells | Wells Harbor, Wells ME | University of New Hampshire - Macroalgal Collection (NHA) | 2013 | 8 | 4 |
| Hancock | Deer Isle | Spruce Head Island, Deer Isle, Penobscot Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2012 | 8 | 22 |
| Washington | Machiasport | Jasper Beach | University of New Brunswick Fredericton (UNB(CEMAR)) | 2011 | 10 | 2 |
| Knox | Rockland | Rockland | University of New Brunswick Fredericton (UNB(CEMAR)) | 2011 | 9 | 29 |
| Cumberland | Freeport | Brewer South Freeport Marine, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2010 | 7 | 31 |
| Cumberland | South Portland | Spring Point Marina, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2010 | 7 | 31 |
| Sagadahoc | Phippsburg | Bates-Morse Mountain Conservation Area, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2007 | 9 | 22 |
| Knox | Camden | Wayfarer Marina, 59 Sea Street, Camden, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2007 | 7 | 29 |
| Lincoln | South Bristol | Docks at Darling Marine Station, Walpole, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2007 | 7 | 29 |
| Knox | Rockland | Journey's End Marina, Rockland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2007 | 7 | 29 |
| Cumberland | Freeport | Brewer South Freeport Marine, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2007 | 7 | 28 |
| Cumberland | Cape Elizabeth | Fort William, South Portland | University of New Brunswick Fredericton (UNB(CEMAR)) | 2006 | 11 | 4 |
| York | York | Cape Neddick, southern ME | University of New Brunswick Fredericton (UNB(CEMAR)) | 2006 | 11 | 3 |
| Washington | Pembroke | Pembroke, Downeast, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 26 |
| Washington | Eastport | Old Eastport Bridge, Downeast, SCUBA, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 16 |
| Washington | Lubec | Federal Harbor Area off Straight Bay Road, Denbow Neck, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 8 |
| Washington | Eastport | Eastport Harbor, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 7 |
| Washington | Eastport | Estes Head, at Heritage Salmon Farm off of Broad Cove, Pen 2, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 7 |
| Washington | Eastport | Harris Point, At Stott Sea Farms, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 8 | 7 |
| York | Kittery | near tidal rapids site off Seapoint Road, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2005 | 7 | 4 |
| Cumberland | Freeport | Brewer's Marina, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2003 | 8 | 4 |
| Cumberland | Portland | Portland Yacht Services, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2003 | 8 | 4 |
| Cumberland | South Portland | Spring Point Marina, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2003 | 8 | 4 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2003 | 6 | |
| Cumberland | Harpswell | Bailey Island, Giant Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 8 | |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 7 | 18 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 7 | 14 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 6 | 18 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 5 | 23 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 4 | 27 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 4 | 23 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 3 | 27 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 2 | 26 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 2 | 16 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 1 | 25 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 1 | 23 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 1 | 15 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2002 | 1 | 9 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 12 | 11 |
| Cumberland | Harpswell | Bailey's Island, Lands End, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 12 | 11 |
| Sagadahoc | Phippsburg | Isiah's Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 12 | 11 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 10 | 15 |
| Washington | Cutler | mouth of the Little River, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 10 | 13 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 7 | 25 |
| Washington | Cutler | Western Head, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 6 | 7 |
| Washington | Cutler | Maine Public Lands just south of Holmes Cove, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 6 | 6 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2001 | 2 | 11 |
| Cumberland | Portland | Peaks Island, at Spar Cove looking directly towards Wyman Power Station, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 22 |
| Cumberland | Portland | Peaks Island, cove just east of Long Point, Casco Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 22 |
| Cumberland | Portland | Peaks Island, ferry landing and docks at Jones Landing Marina, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 22 |
| Cumberland | Portland | Peaks Island, opposite Great Trout Pond and bunker, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 22 |
| Cumberland | Portland | Peaks Island, Trefethan Landing, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 22 |
| Sagadahoc | Georgetown | Reid State Park, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 10 | 14 |
| Cumberland | Portland | Fore River, at international ferry terminal, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 9 | 23 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 8 | 1 |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 7 |
| Cumberland | Harpswell | Ragged Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | White Bull Island, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | Ram Island, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | Jacquish Island, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | Mark Island, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Cumberland | Harpswell | Pond Island, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 6 |
| Sagadahoc | Georgetown | tip of Kennebec Road, at private house, opposite Popham Beach i.e. mouth of Kennebec River, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 1 |
| Sagadahoc | Georgetown | Kennebec River at West Georgetown, opposite Bald Head, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 7 | 1 |
| Sagadahoc | West Bath | New Meadows River at Leeman Highway, West Bath, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 25 |
| Sagadahoc | West Bath | New Meadows River, at Leeman Highway, West Bath, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 25 |
| Cumberland | Chebeague Island | Great Chebeague Island, Casco Bay, shoreline between causeway leading to Little Chebeague and ferry dock, including Chandler Cove, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 10 |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 7 |
| Cumberland | Cape Elizabeth | Cape Elizabeth Lighthouse, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 4 |
| Cumberland | Portland | Diamond Cove, Great Diamond Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 3 |
| Cumberland | Portland | Little Diamond Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 6 | 3 |
| Cumberland | Long Island | Andrew's Nubble, Casco Bay, Long Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 5 | 13 |
| Cumberland | Long Island | at ferry dock, Long Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 5 | 13 |
| Cumberland | Chebeague Island | Great Chebeague Island, at eastern end point and towards west side near Stone Pier and ferry docks, Casco Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 5 | 6 |
| Cumberland | Portland | Cliff Island, floats around ferry dock, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 4 | 15 |
| Hancock | Winter Harbor | Gridstone Neck, Winter Harbor, Hancock Co. | University of Maine Herbaria (MAINE) | 2000 | 4 | 3 |
| Cumberland | Portland | Peaks Island, at Spar Cove looking directly towards Wyman Power Station, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 25 |
| Cumberland | Portland | Peaks Island, cove just east of Long Point, Casco Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 25 |
| Cumberland | Portland | shoreline opposite Great Trout Pond and Bunker, Peaks Island, Casco Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 25 |
| Knox | Friendship | Martin Point, Friendship, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 18 |
| Knox | Saint George | Port Clyde Boat ramp, St. George, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 16 |
| Knox | Saint George | Port Clyde Harbor Boat ramp, Mouth of St. George River, St. George, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 16 |
| Lincoln | Boothbay | Little Ocean Harbor (off Rt. 96), beyond mouth of the Damariscotta River, Linekin Neck, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 14 |
| Lincoln | Boothbay | Ocean Point, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 14 |
| Sagadahoc | Georgetown | at end of Five Island Road (Rt. 127), Five Island, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 11 |
| Sagadahoc | Georgetown | Reid State Park, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 11 |
| Sagadahoc | Phippsburg | Bald Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 5 |
| Sagadahoc | Phippsburg | Fort Popham, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 3 | 5 |
| Cumberland | Portland | Fore River, off Commercial Street, Near Chandler/ Fisherman's Wharf area, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 2 | 26 |
| York | Kittery | Seapoint Beach, Kittery Pt., York Co. | University of Maine Herbaria (MAINE) | 2000 | 2 | 14 |
| Cumberland | Portland | Portland Harbor, at Sunset Marina, off Fore Street, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 1 | 25 |
| Cumberland | South Portland | Spring Point Marina, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 1 | 25 |
| Cumberland | Portland | Fore River, just east of Million Dollar Bridge at High Street off of Commercial Ave, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 1 | 17 |
| Cumberland | Portland | Portland Harbor, at 58 Fore Street, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 1 | 17 |
| Cumberland | Portland | Portland Harbor, at Casco Bay Line Ferry, at Commercial and Franklin Streets, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 2000 | 1 | 17 |
| Cumberland | Cape Elizabeth | Cape Elizabeth Lighthouse, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 30 |
| Cumberland | South Portland | Fort Preble, Near Southern Maine Technical College, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 18 |
| Cumberland | Cape Elizabeth | Portland Head Light, at Fort William Park, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 18 |
| Sagadahoc | Phippsburg | Head Beach and adjacent marsh, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 17 |
| Sagadahoc | Phippsburg | West Point at general store, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 17 |
| Cumberland | Portland | Fore River, at Million Dollar Bridge and next to the International Ferry Terminal, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 12 | 12 |
| Cumberland | Freeport | Harraseeket River, at Feeport Town Wharf, Sears Cove off of Pine Street, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 11 | 28 |
| Cumberland | Freeport | Harraseeket River, at Sandy Beach Road, South Freeport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 11 | 28 |
| Washington | Cutler | Holmes Cove area, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 10 | 30 |
| Cumberland | Harpswell | Basin Point, Potts Harbor, South Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 9 | 18 |
| Cumberland | Harpswell | tip of Ash Point Cove, at Lobster Pound, South Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 9 | 18 |
| Cumberland | Harpswell | "The Steps", at Bailey Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 9 | 7 |
| Lincoln | Monhegan Island Plantation | Little White Head Passage, Monhegan Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 7 | 30 |
| Lincoln | Monhegan Island Plantation | Lobster Cove, Monhegan Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 7 | 29 |
| Cumberland | Harpswell | tip of Bailey's Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 7 | 6 |
| Cumberland | Harpswell | Quahog Bay at Webber and Sons Lobster Co., off Pinkham Point Road, Sebascodegan Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 6 | 26 |
| Washington | Trescott | Moose Cove, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 6 | 15 |
| Washington | Lubec | Huckins Ledge, Cobscook Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 4 | 1 |
| Washington | Lubec | Huckins Ledge, Cobscook Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1999 | 2 | 25 |
| Washington | Lubec | Cobscook Bay (South Bay), near Gove Point and Connor's Salmon Aquaculture facility, North Lubec, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 8 | 21 |
| Lincoln | Boothbay | Samoset Road near Sawyer Island, off Lakeside Drive, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 8 | 21 |
| Washington | Beals | Cape Cove, Great Wass Island, Beals, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 7 | 1 |
| Washington | Eastport | Mathews Island, Cobscook Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 4 | 10 |
| York | Kittery | Sisters Point, Gerrish Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 3 | 14 |
| Lincoln | South Bristol | at dock of the Darling Marine Laboratory (University of Maine), Clark's Cove, Walpole, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 3 | 7 |
| Knox | North Haven | North Haven Ferry Dock, North Haven, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 3 | 6 |
| Washington | Cutler | Western Head, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 2 | 27 |
| Washington | Cutler | Naval Computer and Communication station just south of gate on Little Machias Bay and at third major promontory, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 2 | 17 |
| Washington | Cutler | near pier and power plant at Naval Computer and Telecommunication Station, Machias Bay, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 2 | 17 |
| York | Kittery | Sewards Cove, Gerrish Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 2 | 9 |
| York | Kittery | Fort Foster, Gerrish Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 2 | 8 |
| York | Kittery | Brave Boat Harbor, Site T1j, approximately 2.0 km inland from harbor mouth, at bridge off of Seapoint Road that crosses over the tidal tributary delineating Cutts Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 1 | 31 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 1 | 19 |
| York | Kittery | Brave Boat Harbor, Site BBHS, south shoreline, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1998 | 1 | 2 |
| York | York | Brave Boat Harbor, Site BBHN, mouth of harbor, north bank, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 26 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 19 |
| Washington | Trescott | Baileys Mistake, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 5 |
| Washington | Lubec | Boot Cove, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 5 |
| Washington | Cutler | Money Cove, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 5 |
| Washington | Lubec | Wallace Cove, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 12 | 5 |
| York | Kittery | Brave Boat Harbor, Site #4, approximately 0.38 km inland from mouth, Kittery side of outer harbor just upstream from outermost bridge pilings and the mouth of a major tributary delineating Cutts Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 10 | 18 |
| York | Kittery | Seapoint Beach, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 10 | 18 |
| Washington | Eastport | Mathews Island, Cobscook Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 9 | 21 |
| Washington | Eastport | Deep Cove, near salmon farms and boat ramp area, Passamaquoddy Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 9 | 21 |
| Washington | Lubec | Huckins Ledge, Passamaquoddy Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 9 | 21 |
| Hancock | Blue Hill | Blue Hill Falls, Blue Hill, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 8 | 23 |
| Lincoln | South Bristol | at point of land opposite Crow Island at and end of Rt. 219, mouth of the Damariscotta River, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 8 | 3 |
| Lincoln | South Bristol | Darling Marine Laboratory, (University of Maine), Damariscotta River, Walpole, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 8 | 3 |
| Lincoln | South Bristol | Farrins Wharf, Damariscotta River, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 8 | 3 |
| Lincoln | Westport Island | Sheepscot River north end of Westport Island, opposite Fort Edgecomb and at Sheepscot Marine, Westport Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 7 | 18 |
| Cumberland | Brunswick | New Meadow River, at Lehman Highway, Brunswick, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 7 | 16 |
| York | Biddeford | Biddeford Pool, Biddeford, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 7 | 5 |
| Cumberland | Cape Elizabeth | Cape Elizabeth Lighthouse, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 6 | 21 |
| York | Kennebunk | Parsons Beach, Kennebunk, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 6 | 21 |
| Sagadahoc | West Bath | New Meadows River at Leeman Highway, West Bath, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 4 | 28 |
| York | Kennebunk | Parsons Beach, Kennebunk, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 4 | 7 |
| York | Kittery | Seapoint Beach, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1997 | 1 | 2 |
| Hancock | Bar Harbor | Otter Point, Mount Desert, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 10 | 26 |
| Hancock | Mount Desert | Otter Cove, Mount Desert, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 10 | 25 |
| Washington | Eastport | Deep Cove, near salmon farms and boat ramp area, Passamaquoddy Bay, Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 9 | 21 |
| Sagadahoc | Phippsburg | Bald Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 9 | 2 |
| Sagadahoc | Phippsburg | Bald Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 9 | 1 |
| Cumberland | Scarborough | Prout's Neck, Near Black Point Hotel, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 8 | 27 |
| Hancock | Bar Harbor | Otter Cliff, Mount Desert, Mount Desert, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 8 | 23 |
| Cumberland | Cape Elizabeth | Two Lights State Park, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 8 | 17 |
| Cumberland | Chebeague Island | Deer Point, Great Chebeague Island, Casco Bay, Cumberland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 7 | 21 |
| Hancock | Hancock | Carrying Place Inlet, Between Youngs and Egypt Bays, Hancock, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 7 | 10 |
| Washington | Steuben | Petit Manan, Steuben, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 7 | 1 |
| Sagadahoc | Woolwich | Back River at Maine Yankee, Woolwich, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 22 |
| Lincoln | Wiscasset | Sheepscot River at bridge and boat ramp, Wiscasset, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 22 |
| Sagadahoc | Georgetown | Robinhood Cove off the Sasanoa River at bridge (Rt. 127), Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 19 |
| Sagadahoc | Georgetown | Sheepscot River, near Five Islands and "Love Nest" snack bar, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 19 |
| Cumberland | Harpswell | Cundy's Harbor, near mouth of the New Meadow River, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 11 |
| Cumberland | Harpswell | Cundy's Harbor, near mouth of the New Meadow's River, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 6 | 11 |
| Cumberland | Yarmouth | Doyle Point, Cousins Island, Yarmouth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 22 |
| Sagadahoc | West Bath | New Meadows River at boat ramp off Leeman Highway, West Bath, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 22 |
| Lincoln | South Bristol | Christmas Cove, Damariscotta River, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 18 |
| Lincoln | South Bristol | just south of Christmas Cove and off Sand Cove Road, at Johns Bay and near mouth of the Damariscotta River, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 18 |
| Lincoln | South Bristol | near the "Gut" and by Eliot Cove Lane, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 18 |
| Washington | Trescott | Crows Neck at end of Crows Neck Road, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 16 |
| Washington | Pembroke | Reversing Falls Park, Pembroke, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 16 |
| Knox | Saint George | St. George River, Near Fort St. George, St. George, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 15 |
| Hancock | Bar Harbor | Thunder Hole, Bar Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 5 |
| Hancock | Bar Harbor | Otter Point, Mount Desert, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 5 |
| Waldo | Belfast | Passagassawakeag River at Route 1, Belfast, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 5 | 4 |
| Washington | Pembroke | Garnet Point, on Hersey Neck, Pembroke, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 4 | 19 |
| Washington | Milbridge | Narraguagus River, end of Fickett Point Road, Mildbridge, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 4 | 18 |
| Hancock | Lamoine | Lamoine State Park, Lamoine, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 4 | 18 |
| Lincoln | Waldoboro | Osborne Finch Preserve near boat ramp, Medomak River, Waldoboro, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 4 | 17 |
| York | Biddeford | Biddeford Pool, near beach island, Biddeford, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 31 |
| York | Kennebunkport | Cape Porpoise, near lobster pier and revolutionary monument, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 31 |
| Hancock | Blue Hill | Blue Hill Falls, Blue Hill, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 25 |
| Hancock | Stonington | Town Dock, Stonington, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 25 |
| Hancock | Brooksville | Goose Falls, Cape Roosier, Brooksville, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 25 |
| Washington | Trescott | Baileys Mistake, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 24 |
| Washington | Cutler | Little River at Rt. 191 and just before major road turn, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 24 |
| Cumberland | Portland | Peaks Island, at boat dock floats, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 23 |
| Cumberland | Portland | southwest shoreline of Peaks Island and east of Long Point on Whitehead Passage, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 23 |
| Cumberland | Portland | Diamond Cove, Great Diamond Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 17 |
| Knox | Vinalhaven | Main Street Bridge, Vinalhaven, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 14 |
| Washington | Addison | Moose Neck, Pleasant Bay, South Addison, Addison, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 13 |
| Washington | Harrington | Ripley Neck near Hog Island, Harrington, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 13 |
| Hancock | Winter Harbor | Schoodic Point, near Little Moose Island, Acadia National Park, Winter Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 13 |
| Hancock | Swans Island | Red Point, Swan's Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 3 | 12 |
| Washington | Roque Bluffs | Roque Bluffs State Park, Roque Bluffs, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 24 |
| Washington | Machiasport | Starboard Ramp area, Starboard Cove, Machiasport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 24 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 24 |
| Hancock | Southwest Harbor | Seawall, Southwest Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 23 |
| Hancock | Tremont | Bass Harbor Head Light, Tremont, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 23 |
| Lincoln | Southport | Newagen (SW side), Southport Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 18 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 14 |
| Knox | Saint George | Port Clyde Harbor, St. George, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 10 |
| York | Saco | "Bay View" area, Saco, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 6 |
| Cumberland | Scarborough | Pine Point, breakwater area, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 6 |
| York | Kennebunkport | Goose Rock Beach, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 4 |
| York | York | Cape Neddick, Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 3 |
| Lincoln | Bristol | Long Cove off of Rt. 32, Chamberlain, Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 1 |
| Lincoln | Bristol | Pemaquid Point, Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 2 | 1 |
| York | York | Cape Neddick, Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 1 | 30 |
| Cumberland | Scarborough | Higgins Beach, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 1 | 26 |
| Cumberland | Harpswell | Bailey's island, east side up from Jaquish Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1996 | 1 | 25 |
| Lincoln | Boothbay | East Boothbay Pond, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 12 | 29 |
| Lincoln | Boothbay | Farnham Point off of Rt. 96 and opposite Rutherford Island, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 12 | 29 |
| Lincoln | Southport | Capitol Island, at bridge from Cross Road and West Southport, Southport Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 11 | 20 |
| Lincoln | Boothbay Harbor | downtown area near walkway, Boothbay Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 11 | 20 |
| Lincoln | Southport | exposed west side, Newagen, Southport Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 11 | 20 |
| Lincoln | Edgecomb | Sheepscot River off of Shore Road and opposite Westport Island, at a bridge and near a dammed up cove, Edgecomb, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 11 | 1 |
| Lincoln | Wiscasset | Back River boat ramp/pier in front of the Environmental Services Building, off of Rt. 144 and Birch Point Rd, Wiscasset, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 29 |
| Cumberland | Scarborough | Pine Point, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 29 |
| Sagadahoc | Georgetown | Robinhood Marina, Robinhood Cove, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 27 |
| Lincoln | Bristol | Long Cove Point and adjacent cove, Chamberlain, Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 21 |
| Knox | Vinalhaven | Areys Neck Woods Preserve, Vinalhaven Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 20 |
| Knox | Vinalhaven | Lanes Island Preserve, Vinalhaven, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 20 |
| Lincoln | Bristol | Rachel Carson Salt Pond Preserve, Pemaquid Neck, Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 20 |
| Knox | Vinalhaven | Town Pier, Vinalhaven Harbor, Vinalhaven, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 20 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 10 | 7 |
| Lincoln | Southport | at town pier, Newagen, Southport Island, Southport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 29 |
| Lincoln | Boothbay | Trevett Public Float near Trevett Post Office, Back River, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 29 |
| Lincoln | Boothbay | near post office and boat launch area, Damariscotta River, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 28 |
| Cumberland | Harpswell | Bailey's Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 16 |
| Sagadahoc | Phippsburg | Isiah's Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 9 |
| Cumberland | Long Island | Andrew's Nubble, Casco Bay, Long Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 1 |
| Cumberland | Long Island | Marsh Island (=Vail Island), off of Long Island, Casco Bay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 9 | 1 |
| Cumberland | Harpswell | Bailey's Island, southeast side facing Pond Island, and Pond Island Ledge, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 29 |
| Cumberland | Harpswell | Bailey's Island, southeast side facing Pond Island and Pond Island Ledge, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 29 |
| Sagadahoc | Phippsburg | Bald Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 28 |
| York | Kennebunkport | Vaugn Island, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 28 |
| Cumberland | Harpswell | end of Bailey's Island at Route 24 and behind Jacuish Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 27 |
| Cumberland | Portland | Peaks Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 26 |
| Cumberland | Portland | Peaks Island, docks at Forest City Landing, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 26 |
| Cumberland | Chebeague Island | Chandler Cove Wharf, Great Chebeague Island, Casco Bay, Cumberland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 16 |
| Cumberland | Chebeague Island | Deer Point, Great Chebeague Island, Casco Bay, Cumberland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 16 |
| Cumberland | Portland | Cliff Island, pier pilings/floats on north shore, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 4 |
| Cumberland | Portland | Diamond Cove, Great Diamond Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 8 | 3 |
| Lincoln | South Bristol | Foster's Point, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 7 | 12 |
| Washington | Edmunds Township | near the Friedman Laboratory of Suffolk University, Cobscook Bay, Edmunds, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 7 | 7 |
| Hancock | Brooksville | Goose Falls, Cape Roosier, Brooksville, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 18 |
| Hancock | Brooksville | Bagaduce Falls, Off Route 176, Brooksville, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 18 |
| Hancock | Brooksville | Goose Pond, Cape Roosier, Brooksville, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 17 |
| Hancock | Brooksville | Bagaduce Falls off of Route 176, Brooksville, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 16 |
| York | York | York River, at Sewall Bridge, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 15 |
| York | Saco | Stratton Island, Offshore from Old Orchard Beach, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 15 |
| Cumberland | Brunswick | Simpson Point, Merepoint Bay, Brunswick, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 13 |
| Sagadahoc | Phippsburg | Bald Head, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 10 |
| York | Saco | Stratton Island, Offshore from Old Orchard Beach, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 6 | 6 |
| York | Ogunquit | Ogunquit Beach, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 23 |
| Cumberland | South Portland | mouth of the Fore River, just in from Fort Preble and near boat ramp area, South Portland, Maine | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 19 |
| Lincoln | Boothbay | East Boothbay Pond, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 19 |
| Cumberland | Cape Elizabeth | Two Lights State Park, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 18 |
| Cumberland | Long Island | Andrews Nubble near South Beach, Long Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 14 |
| Cumberland | Harpswell | Basin Cove Falls, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 13 |
| Cumberland | Scarborough | Higgins Beach, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 6 |
| Cumberland | Cape Elizabeth | Kettle Cove, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 6 |
| York | Saco | "Bay View" rock outcrop near Ferry Beach State Park, Saco, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 5 |
| York | York | East Point, near Stage Neck, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 4 |
| York | Saco | Ferry Beach State Beach Park, Saco, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 3 |
| York | Kittery | Seapoint Beach, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 2 |
| York | Kennebunk | Parsons Beach, near the mouth of the Mousam River, Kennebunk, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 5 | 1 |
| York | York | Barn Point, near the entrance to Cape Neddick River, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 23 |
| York | Wells | mouth of the Webhannet River at breakwater, Wells, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 23 |
| York | Ogunquit | Ogunquit Beach, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 23 |
| Cumberland | Portland | Whaleback, Peaks Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 22 |
| Cumberland | Portland | Davey's Elm Cove, Peaks Island, Casco Bay, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 22 |
| Hancock | Sullivan | Shoreline directly opposite Sullivan Falls, Sullivan, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 18 |
| Hancock | Hancock | Sullivan Falls, Hancock, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 18 |
| Lincoln | Boothbay | at a marine dam formed by tidal dam near the East Boothbay Post Office, East Boothbay, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 18 |
| Washington | Cutler | i.e. just before the Naval Transmission Station, boat ramp/ cobble beach near North Cutler, Cutler, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 17 |
| Washington | Jonesport | Sandy River Beach, off Rt. 187, Jonesport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 17 |
| Hancock | Blue Hill | Blue Hill Falls off Route 175, Blue Hill, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 15 |
| York | Wells | Moody Point, Wells, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 9 |
| Hancock | Southwest Harbor | Wonderland, S.W. Harbor | University of Maine Herbaria (MAINE) | 1995 | 4 | 8 |
| York | Kennebunkport | Cape Arundel, near the mouth of the Kennebunk River, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 8 |
| York | Biddeford | Biddeford Pool, Biddeford, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 8 |
| Hancock | Blue Hill | Beyond retaining wall with narrow opening to Salt Pond, Blue Hill Falls at Route 175, Blue Hill, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 3 |
| Washington | Trescott | Baileys Mistake off of Rt. 191 at an abandoned home, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 2 |
| Washington | Roque Bluffs | Roque Bluffs State Park, Roque Bluffs, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 4 | 2 |
| Sagadahoc | Phippsburg | Head Beach, i.e. off Small Point Road, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 3 | 28 |
| Hancock | Gouldsboro | Young Point, Opposite Bald Rock, Corea, Gouldsboro, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 3 | 26 |
| Cumberland | Cape Elizabeth | Fort Williams/Portland Head Light, Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 3 | 25 |
| Lincoln | Southport | Newagen, Southport Island, Southport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 3 | 25 |
| Hancock | Blue Hill | Beyond retaining wall with narrow opening to Salt Pond, Blue Hill Falls at Route 175, Blue Hill, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 3 | 4 |
| Cumberland | Harpswell | Basin Cove, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 2 | 25 |
| Cumberland | Harpswell | Basin Cove, South Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 2 | 25 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 2 | 23 |
| York | Ogunquit | Perkins Cove, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 2 | 22 |
| Cumberland | Harpswell | Bailey's Island, east side facing Pond Island Ledge, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 2 | 20 |
| York | York | Cape Neddick, Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1995 | 1 | 31 |
| Hancock | Castine | Castine Harbor on Bagaduce River, Castine, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 11 | 6 |
| Sagadahoc | Georgetown | Goose Rock Passage, junction of Sasanoa and Little Sheepscot Rivers, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 10 | 2 |
| Sagadahoc | Georgetown | north end of Beal Island and in the middle of "Hellsgate" area, Sasanoa River, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 10 | 2 |
| Sagadahoc | Georgetown | south tip of Beal Island and south of the "Hellsgate" area, Sasanoa River, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 10 | 2 |
| Cumberland | South Portland | Fort Williams, near US Coast Guard Light Station, Cape Elizabeth, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 9 | 17 |
| Hancock | Stonington | Harbor Near Green Head Landing, Stonington, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 9 | 11 |
| Lincoln | Boothbay | Ocean Point, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 9 | 7 |
| Cumberland | Harpswell | Bailey's Island, end of Route 24, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 9 | 6 |
| Cumberland | Cape Elizabeth | Cape Elizabeth, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 24 |
| Hancock | Southwest Harbor | Seawall, across from Seawall Campground, Southwest Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 23 |
| Washington | Robbinston | boat ramp and picnic facility off Rt. 1, Robbinston, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 20 |
| Knox | Saint George | Port Clyde Boat ramp, Mouth of St. George River, St. George, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 16 |
| Lincoln | Bristol | Pemaquid Point, Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 15 |
| York | Wells | mouth of the Webhannet River at breakwater on south side of river and at end of Beach (Ocean) Road, Wells, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 8 |
| Sagadahoc | Phippsburg | Fort Popham State Memorial (Fort) at entrance to Atkins Bay and the mouth of the Kennebec River, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 8 | 6 |
| Cumberland | Portland | Back Bay area at the end of the Fore River, just west of Rt. 1 and at Payson Park, Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 28 |
| Cumberland | South Portland | pier and boat ramp area at the mouth of the Fore River, South Portland, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 27 |
| Cumberland | Scarborough | Pine Point Beach, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 23 |
| Hancock | Winter Harbor | Tip of Schoodic Peninsula near Big Moose Island, Winter Harbor, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 21 |
| Washington | Addison | Moose Neck Peninsula on the east side of the peninsula with an offshore island, South Addison, Addison, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 20 |
| Washington | Harrington | tip of Ripley Neck facing Pleasant Bay, Harrington, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 19 |
| York | Kennebunk | Parsons Beach, near the mouth of the Mousam River, Kennebunk, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 16 |
| Lincoln | Monhegan Island Plantation | Little White Head, semi-exposed east side, Monhegan Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 16 |
| Lincoln | Monhegan Island Plantation | Lobster Cove, exposed south side, Monhegan Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 15 |
| Lincoln | Westport Island | collected at a private house/pier area opposite Upper Mark Island and off East River Road, Westport Island, Westport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 14 |
| Lincoln | Edgecomb | Fort Edgecomb on Davis Island on the Sheepscot River, Edgecomb, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 14 |
| York | Kennebunkport | Mouth of the Kennebunk River, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 11 |
| York | Kennebunkport | Mouth of the Kennebunk River, oceanside near breakwater and towards Cape Arundel, Kennebunkport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 7 | 11 |
| Sagadahoc | Georgetown | Reid State Beach Park, Georgetown, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 30 |
| York | Biddeford | Biddeford Pool, at end of road at 3rd Street between east and south points, Biddeford, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 26 |
| Lincoln | South Bristol | Rt. 129 near Cove Side Marina and Restaurant, Damariscotta River, just upstream from Christmas Cove, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 18 |
| Lincoln | South Bristol | tip of South Bristol Peninsula, Damariscotta River, South Bristol, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 15 |
| York | York | Cape Neddick Campground, at mouth of Cape Neddick River, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1994 | 6 | 10 |
| Sagadahoc | Phippsburg | Isiah's Head, Small Point, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 9 | 16 |
| Cumberland | Scarborough | Prout's Neck, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 8 | 19 |
| Hancock | Gouldsboro | Prospect Harbor, S side Rt. 195, Sand Cove [coordinates approximated]. | University of South Carolina, A. C. Moore Herbarium (USCH) | 1989 | 8 | 8 |
| Cumberland | Scarborough | Prout's Neck, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 8 | 8 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 7 | 6 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 7 | 4 |
| Cumberland | Harpswell | Bailey's Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 5 | 8 |
| Cumberland | Harpswell | Bailey's Island, Lobster Cove, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 5 | 8 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 4 | 9 |
| Sagadahoc | Phippsburg | Fox Island, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 3 | 12 |
| Sagadahoc | Phippsburg | Fox Island, Phippsburg, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 3 | 11 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1989 | 2 | 6 |
| Washington | Trescott | Crows Neck | Farlow Herbarium (Harvard University) (FH) | 1989 | 0 | 0 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1988 | 11 | 22 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1987 | 12 | 31 |
| Cumberland | Harpswell | Giant's Staircase, Bailey Island, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1987 | 12 | 31 |
| Cumberland | Harpswell | Bailey Island, Giant Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1987 | 12 | 31 |
| Cumberland | Harpswell | Giant Causeway, Baileys Island, Casco Bay, ME | University of Massachusetts - Amherst (MASS) | 1987 | 11 | 4 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1987 | 11 | 4 |
| York | Kittery | Seapoint Beach, Kittery, ME | University of Connecticut (CONN) | 1986 | 10 | 16 |
| Knox | Matinicus Isle Plantation | Eastern Exposed Side, Wooden Ball Island, Matinicus Isle Plantation, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1986 | 6 | 8 |
| Knox | Matinicus Isle Plantation | Wooden Ball Island, Exposed Eastern Side, Matinicus Isle Plantation, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1986 | 6 | 8 |
| Knox | Vinalhaven | Hurricane Island, SCUBA, Vinalhaven, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1986 | 6 | 1 |
| Cumberland | Harpswell | Bailey's Island, Giant's Staircase, Harpswell, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1986 | 4 | 5 |
| Hancock | Swans Island | Bauxam Cove, Marshall's Island, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1985 | 6 | 6 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1985 | 4 | 13 |
| York | York | York River Estuary, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1984 | 11 | 30 |
| Lincoln | Boothbay | Ocean Point, Boothbay, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1983 | 8 | 18 |
| Hancock | Mount Desert | Seal Harbor | College of the Atlantic Herbarium (HCOA) | 1980 | 12 | 3 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1979 | 10 | 5 |
| Hancock | Winter Harbor | ALGAE OF MAINE Schoodic Head, Schoodic Peninsula, Hancock County. | University of North Carolina at Chapel Hill Herbarium (NCU) | 1979 | 9 | 5 |
| York | Eliot | Station #17D, across Piscataqua River from PSCO Schiller Plant, SCUBA, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1978 | 11 | 1 |
| York | Eliot | Station #17D, across Piscataqua River from PSCO Schiller Plant, SCUBA, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1978 | 8 | 29 |
| York | Kittery | Appledore Island, north side, west of cove, Isles of Shoals, Kittery, ME | University of South Florida (USF) | 1978 | 6 | 30 |
| Washington | Lubec | Quoddy Head, Lubec, Washington Co. | University of Maine Herbaria (MAINE) | 1978 | 6 | 18 |
| York | Eliot | Station #17D, across Piscataqua River from PSCO Schiller Plant, SCUBA, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1978 | 5 | 31 |
| Washington | Lubec | Quoddy Head | University of Vermont, Pringle Herbarium, Algae Collection (VT) | 1978 | 5 | 6 |
| York | York | Site #6, North Bank of York River between Sewall Bridge and route 103 bridge, | University of New Hampshire - Macroalgal Collection (NHA) | 1978 | 3 | 31 |
| York | Kittery | Seapoint, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 12 | 20 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 12 | 6 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, SCUBA, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 11 | 3 |
| York | Kittery | Duck Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 10 | 12 |
| York | Eliot | Piscataqua River, east bank, opposite Hilton Park, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 17 |
| York | Eliot | Piscataqua River, just north of Adlington Creek on the east bank, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 17 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 17 |
| York | Eliot | Piscataqua River, north bank, just downstream from Frankfort Island, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 17 |
| York | Kittery | Duck Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 17 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 16 |
| York | Eliot | Piscataqua River, east bank, just south of Sturgeon Creek, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 2 |
| York | Eliot | Piscataqua River, east bank approximately midway between Sturgeon Creek and the mouth of the Salmon falls river, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 2 |
| York | Eliot | Piscataqua River, east bank, just north of Sturgeon Creek, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 8 | 2 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 7 | 28 |
| York | Kittery | Appledore Is. [Island], Isles of Shoals, Maine | University of North Carolina Wilmington, David J. Sieren Herbarium (WNC) | 1977 | 6 | 18 |
| York | Kittery | Duck Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 5 | 18 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, SCUBA, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1977 | 5 | 5 |
| Lincoln | Bristol | Chamberlain Pt., Lincoln Co. | University of Maine Herbaria (MAINE) | 1977 | 4 | 1 |
| York | Kittery | Malaga Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 11 | 19 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 11 | 19 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 11 | 5 |
| York | Kittery | Cedar Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 8 | 28 |
| Lincoln | South Bristol | Foster Pt., South Bristol, Lincoln Co. | University of Maine Herbaria (MAINE) | 1976 | 8 | 11 |
| Washington | Beals | Cape Cove, Great Wass Island, Beals | University of Maine Herbaria (MAINE) | 1976 | 7 | 29 |
| York | York | Boon Island, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 6 | 30 |
| York | York | Boon Island,SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 6 | 30 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 6 | 20 |
| York | Kittery | Duck Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 6 | 15 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 6 | 6 |
| Washington | Beals | Norton Pt., Great Wass Island, Washington Co. | University of Maine Herbaria (MAINE) | 1976 | 5 | 13 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 28 |
| York | Ogunquit | on rocks in shallow tide pools, Bald Head Cliff, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 24 |
| York | Ogunquit | on rocks below low tide level, Bald Head Cliff, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 24 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 16 |
| York | Kittery | Duck Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 16 |
| York | Kittery | Malaga Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 16 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 16 |
| York | Kittery | Cedar Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 4 | 16 |
| York | York | Site #6, North Bank of York River between Sewall Bridge and route 103 bridge, | University of New Hampshire - Macroalgal Collection (NHA) | 1976 | 3 | 31 |
| York | Eliot | Schiller Power Plant, Station 17D, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 11 | 4 |
| York | Kittery | Appledore Island, SCUBA, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 10 | 1 |
| York | Kittery | east side of Appledore Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 10 | 1 |
| Lincoln | Bristol | Below the lighthouse, Pemaquid Point; 43.866667 -69.516667 | University of North Carolina at Chapel Hill Herbarium (NCU) | 1975 | 9 | 4 |
| Washington | Beals | Great Wass Island, Washington Co. | University of Maine Herbaria (MAINE) | 1975 | 7 | 23 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 7 | 23 |
| York | Eliot | Station #17D, end of Long Reach Farm, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 5 | 15 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1975 | 5 | 8 |
| Lincoln | Bristol | Pemaquid Pt., Lincoln Co. | University of Maine Herbaria (MAINE) | 1975 | 3 | 17 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1974 | 11 | 14 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1974 | 8 | 20 |
| Lincoln | Bristol | Chamberlain, Bristol | University of Maine Herbaria (MAINE) | 1974 | 5 | 29 |
| Lincoln | Bristol | Chamberlain, Lincoln Co. | University of Maine Herbaria (MAINE) | 1974 | 5 | 29 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1974 | 5 | 14 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1973 | 11 | 5 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1973 | 8 | 13 |
| Hancock | Winter Harbor | Schoodic Point, Acadia Nat'l Park | University of Michigan (MICH) | 1973 | 8 | 4 |
| York | York | Nubble Head, York, ME | University of South Florida (USF) | 1973 | 7 | 24 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1973 | 4 | 25 |
| Cumberland | Harpswell | Bailey's Island, Casco Bay, ME | University of South Florida (USF) | 1972 | 7 | 31 |
| Cumberland | Harpswell | Giant's Staircase, Bailey Island | University of Michigan (MICH) | 1972 | 7 | 31 |
| Hancock | Unknown | Acadia National Park | University of Maine Herbaria (MAINE) | 1972 | 3 | 5 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1972 | 1 | 28 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 11 | 24 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 9 | 30 |
| York | Eliot | Site 17D, Piscataqua River, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 9 | 15 |
| Lincoln | Bristol | Below the lighthouse, Pemaquid Point | University of North Carolina at Chapel Hill Herbarium (NCU) | 1971 | 9 | 4 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 9 | 4 |
| Washington | Eastport | Eastport, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 9 | 0 |
| York | York | Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 8 | 17 |
| Cumberland | Harpswell | Giant's Stairs, Bailey Island | University of Michigan (MICH) | 1971 | 7 | 31 |
| York | York | Nubble Lighthouse, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 7 | 7 |
| York | York | Nubble Lighthouse, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 7 | 5 |
| York | York | Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 7 | 5 |
| York | York | Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 6 | 17 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 6 | 17 |
| York | Kittery | east side of breakwater between Smuttynose and Cedar Island, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1971 | 3 | 4 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 11 | 13 |
| York | Eliot | Station #15, Near Schiller Power Plant, Piscataqua River, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 11 | 6 |
| York | Eliot | Piscataqua River, Station #17, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 9 | 14 |
| York | Eliot | Piscataqua River, Station #13, near the site of the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 9 | 11 |
| York | Eliot | Station #25, Near the Schiller Power Plant, Eliot, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 9 | 9 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 8 | 6 |
| York | Kittery | Smuttynose Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1970 | 8 | 6 |
| York | Kittery | Kittery Point area, 1000 yards inshore of lighthouse, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1969 | 8 | 14 |
| York | Kittery | Kittery Point, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1969 | 8 | 14 |
| Cumberland | Harpswell | Bailey Island | University of Vermont, Pringle Herbarium, Algae Collection (VT) | 1969 | 5 | 15 |
| Cumberland | Harpswell | Giant Staircase, Baileys Island, Casco Bay, ME | University of Massachusetts - Amherst (MASS) | 1969 | 5 | 12 |
| Lincoln | South Beach | ALGAE OF MAINE Dock at Darling Center, Walpole | University of North Carolina at Chapel Hill Herbarium (NCU) | 1969 | 5 | 6 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1969 | 5 | 4 |
| Cumberland | Harpswell | Giant Staircase, Haley Point, Baileys Island, Casco Bay, ME | University of Massachusetts - Amherst (MASS) | 1968 | 10 | |
| York | York | Cape Neddick, Nubble Lighthouse, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 7 | 19 |
| York | Kittery | Appledore Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 5 | 28 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 3 | 27 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 3 | 13 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 2 | 26 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1968 | 1 | 19 |
| York | York | Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 10 | 27 |
| York | York | Cape Neddick, Nubble Lighthouse, SCUBA York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 10 | 2 |
| York | York | Cape Neddick, SCUBA, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 10 | 2 |
| Hancock | Bar Harbor | Sandwich Beach, near Bar Harbor | University of South Carolina, A. C. Moore Herbarium (USCH) | 1967 | 9 | 7 |
| Hancock | Bar Harbor | Otter Point, Mount Desert, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 4 | 13 |
| York | Biddeford | Biddeford, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 3 | 24 |
| Washington | Lubec | Quoddy Head, Lubec, Washington Co. | University of Maine Herbaria (MAINE) | 1967 | 3 | 5 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1967 | 2 | 3 |
| York | York | Godfreys Cove, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 11 | 9 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 10 | 23 |
| York | York | Nubble Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 9 | 16 |
| Hancock | Bar Harbor | Anemone Cave, Mount Desert Island. | University of Washington (WTU) | 1966 | 8 | 26 |
| York | Kittery | Cedar Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 7 | 22 |
| York | Kittery | Haley's Cove, Smuttynose Island, Isles of Shoals, SCUBA, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 6 | 16 |
| York | Kittery | Smuttynose Island, Isles of Shoals, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 6 | 16 |
| Washington | Lubec | W. Quoddy Head | Duke University Herbarium Algae Collection (DUKE) | 1966 | 5 | 21 |
| Washington | Lubec | Baileys Mistake, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 5 | 21 |
| Washington | Trescott | Baileys Mistake, Trescott, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 5 | 21 |
| Washington | Lubec | West Quoddy Head, Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 5 | 21 |
| Hancock | Winter Harbor | Schoodic Pt., Winter Harbor | University of Maine Herbaria (MAINE) | 1966 | 5 | 7 |
| York | York | Nubbel Point Lighthouse, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 5 | 4 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 4 | 27 |
| Sagadahoc | Phippsburg | Cape Small, Phippsburg, Sagadahoc Co. | University of Maine Herbaria (MAINE) | 1966 | 4 | 24 |
| York | Ogunquit | Bald Head Cliffs, Ogunquit, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 3 | 21 |
| Cumberland | Scarborough | Prouts Neck. | University of Washington (WTU) | 1966 | 3 | 12 |
| York | York | Bald Head, York, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 3 | 12 |
| Cumberland | Scarborough | Prout's Neck, Scarborough, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 3 | 12 |
| York | Kittery | Seapoint, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 3 | 2 |
| York | Kittery | Gerrish Island, Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1966 | 3 | 2 |
| Lincoln | Bristol | Chamberlain, Bristol | University of Maine Herbaria (MAINE) | 1966 | 2 | 19 |
| Lincoln | Bristol | Pemaquid Pt., Bristol | University of Maine Herbaria (MAINE) | 1966 | 2 | 19 |
| York | Kittery | Kittery, ME | University of New Hampshire - Macroalgal Collection (NHA) | 1965 | 11 | 4 |
| York | Kittery | City Point Beach, Kittery, Maine | University of New Hampshire - Macroalgal Collection (NHA) | 1965 | 11 | 4 |
| Lincoln | South Bristol | Clarks Cove | University of Maine Herbaria (MAINE) | 1965 | 7 | 13 |
| Lincoln | Bristol | Pemaquid Pt., Pemaquid, Lincoln Co. | University of Maine Herbaria (MAINE) | 1965 | 5 | 1 |
| Washington | Cutler | West Head of Cutler Harbor, Washington Co. | University of Maine Herbaria (MAINE) | 1965 | 4 | 15 |
| Hancock | Lamoine | Lamoine Beach, Lamoine, Hancock Co. | University of Maine Herbaria (MAINE) | 1965 | 4 | 13 |
| Hancock | Lamoine | Lamoine Beach, Lamoine | University of Maine Herbaria (MAINE) | 1965 | 4 | 13 |
| Hancock | Winter Harbor | Schoodic Pt., Winter Harbor, Hancock Co. | University of Maine Herbaria (MAINE) | 1965 | 2 | 9 |
| Hancock | Bar Harbor | Bar Harbor, Hancock Co. | University of Maine Herbaria (MAINE) | 1964 | 8 | 6 |
| Sagadahoc | Phippsburg | Sprague River Salt Marsh | University of Maine Herbaria (MAINE) | 1964 | 4 | 13 |
| York | Ogunquit | Godfrey's Cove, York Harbor | University of Maine Herbaria (MAINE) | 1964 | 1 | 19 |
| York | Ogunquit | Godfrey's Cove, York Harbor, York Co. | University of Maine Herbaria (MAINE) | 1964 | 1 | 19 |
| Lincoln | South Bristol | On shore east side of landing, Darling Marine Center, Walpole | University of Maine Herbaria (MAINE) | 1963 | 12 | 14 |
| Lincoln | South Bristol | Darling Marine Center, Walpole | University of Maine Herbaria (MAINE) | 1963 | 12 | 14 |
| Washington | Milbridge | Milbridge Pt. | University of Maine Herbaria (MAINE) | 1963 | 11 | 29 |
| Washington | Milbridge | Millbridge | University of Maine Herbaria (MAINE) | 1963 | 11 | 13 |
| Lincoln | South Bristol | Wharf Piling, Darling Marine Center, Walpole | University of Maine Herbaria (MAINE) | 1963 | 10 | 14 |
| Lincoln | Bristol | Pemaquid Pt., Pemaquid, Lincoln Co. | University of Maine Herbaria (MAINE) | 1963 | 10 | 2 |
| Washington | Beals | Lower Island, Great Wass Island, Beals | University of Maine Herbaria (MAINE) | 1963 | 7 | 28 |
| Hancock | Bar Harbor | Thunder Hole, MDI, Hancock Co. | University of Maine Herbaria (MAINE) | 1963 | 7 | 22 |
| Lincoln | South Bristol | Thread of Life Islands off Christmas Cove | University of Maine Herbaria (MAINE) | 1962 | 8 | 28 |
| Lincoln | South Bristol | Christmas Cove, South Bristol | University of Maine Herbaria (MAINE) | 1962 | 7 | 26 |
| Lincoln | Bristol | Pemaquid Point, Bristol | University of Maine Herbaria (MAINE) | 1962 | 7 | 13 |
| Knox | Rockland | Samo Set Hotel, Breakwater off Seaward side | University of Maine Herbaria (MAINE) | 1962 | 6 | 19 |
| Hancock | Bar Harbor | Schooner Head, Bar Harbor | University of Maine Herbaria (MAINE) | 1961 | 9 | 21 |
| Hancock | Bar Harbor | North of Schooner Head, Bar Harbor, Hancock Co. | University of Maine Herbaria (MAINE) | 1961 | 9 | 11 |
| Washington | Beals | Great Wass Island | University of Maine Herbaria (MAINE) | 1961 | 8 | 26 |
| Washington | Beals | Great Wass Island, Washington Co. | University of Maine Herbaria (MAINE) | 1961 | 8 | 26 |
| Hancock | Deer Isle | Barred Island, Deer Isle | University of Maine Herbaria (MAINE) | 1961 | 6 | 27 |
| Hancock | Deer Isle | Goose Cove, Deer Isle, Hancock Co. | University of Maine Herbaria (MAINE) | 1961 | 6 | 17 |
| Lincoln | Boothbay | Booth Bay Harbor, East of Fisherman's Island, Lincoln Co. | University of Maine Herbaria (MAINE) | 1961 | 6 | 10 |
| Lincoln | Boothbay Harbor | Booth Bay Harbor, East of Fisherman's Island, Lincoln Co. | University of Maine Herbaria (MAINE) | 1961 | 6 | 10 |
| Lincoln | South Bristol | John's Bay, Pemaquid Beach, Bristol, Lincoln Co. | University of Maine Herbaria (MAINE) | 1961 | 6 | 1 |
| Lincoln | Bristol | Back Shore, New Harbor, Lincoln Co. | University of Maine Herbaria (MAINE) | 1961 | 5 | 4 |
| Lincoln | Bristol | Pemaquid Pt., Pemaquid, Lincoln Co. | University of Maine Herbaria (MAINE) | 1960 | 5 | 1 |
| Knox | Rockland | Rockland | Farlow Herbarium (Harvard University) (FH) | 1959 | 6 | 22 |
| Knox | Unknown | Knox County, Maine [no other location details given] | Farlow Herbarium (Harvard University) (FH) | 1959 | 6 | 22 |
| Hancock | Southwest Harbor | Sea Wall, Mount Desert Island, ME | University of Massachusetts - Amherst (MASS) | 1953 | 8 | 25 |
| Unknown | UNKNOWN | Egg Harbor | Duke University Herbarium Algae Collection (DUKE) | 1949 | 8 | 10 |
| Cumberland | Harpswell | Devereaux Ledge, Bailey Island, ME | University of Connecticut (CONN) | 1949 | 7 | 23 |
| Cumberland | Harpswell | Bailey's Island, Harpswell, ME | University of Connecticut (CONN) | 1948 | 8 | |
| York | Ogunquit | Ogunquit | Duke University Herbarium Algae Collection (DUKE) | 1948 | 7 | 16 |
| Cumberland | Harpswell | Harpswell, ME | University of Connecticut (CONN) | 1947 | 6 | |
| Cumberland | Harpswell | Bailey's Island, Cumberland Co. | University of Maine Herbaria (MAINE) | 1946 | 3 | 19 |
| Unknown | UNKNOWN | [No precise loc] | Miami University (MU) | 1943 | 12 | 0 |
| Unknown | UNKNOWN | [precise locality unknown] | Butler University (BUT) | 1941 | 8 | 0 |
| Cumberland | Harpswell | Baileys Island, Casco Bay | University of Michigan (MICH) | 1941 | 7 | 2 |
| Cumberland | Harpswell | Baileys Island, Casco Bay, Maine | University of Michigan (MICH) | 1941 | 7 | 2 |
| Cumberland | Harpswell | Baileys Id., Casco Bay, Maine | University of Michigan (MICH) | 1940 | 8 | 9 |
| Cumberland | Harpswell | Baileys Id., Casco Bay, Maine [Map on sheet] | University of Michigan (MICH) | 1940 | 8 | 9 |
| Washington | Lubec | vicinity of Quoddy Head, Lubec | Field Museum of Natural History (F) | 1940 | 7 | 20 |
| Washington | Lubec | Vicinity of Quoddy Head, Lubec | University of Michigan (MICH) | 1940 | 7 | 20 |
| Cumberland | Harpswell | Casco Bay, Orr's Island | The New York Botanical Garden (NY) | 1940 | 7 | 10 |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay, Maine | University of Michigan (MICH) | 1940 | 7 | |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay, ME | Farlow Herbarium (Harvard University) (FH) | 1939 | 7 | 21 |
| Cumberland | Harpswell | Pond Island Ledge, Casco Bay | University Herbarium, University of California, Berkeley (UC) | 1939 | 7 | 21 |
| Cumberland | Harpswell | Pond Island Ledge, at mean L.W. [low water]. Casco Bay, Maine | University of Michigan (MICH) | 1939 | 7 | 21 |
| Cumberland | Harpswell | Pond Island Ledge, at mean low water. Casco Bay, Maine | University of Michigan (MICH) | 1939 | 7 | 21 |
| Hancock | Mount Desert | Mount Desert Island | University of South Carolina, A. C. Moore Herbarium (USCH) | 1929 | 9 | 0 |
| Knox | Friendship | Otter Island S. of Friendship in Penobscot Bay off coast of Maine | Field Museum of Natural History (F) | 1929 | 7 | 2 |
| Knox | Friendship | Penobscot Bay, Otter Island | The New York Botanical Garden (NY) | 1929 | 7 | 2 |
| Unknown | UNKNOWN | Tidal pool | Field Museum of Natural History (F) | 1928 | 8 | 28 |
| Hancock | Unknown | Mt Desert Isle, Maine, tide pool [no other location details] | Field Museum of Natural History (F) | 1928 | 8 | 28 |
| Hancock | Unknown | "Mt Desert Isle, Maine; tidal pool [no other location details] | The New York Botanical Garden (NY) | 1928 | 8 | 28 |
| Hancock | Winter Harbor | Schoodic Point, tidal pool | The New York Botanical Garden (NY) | 1928 | 8 | 28 |
| Knox | Camden | Camden, Knox County, in salt water at low-tide mark | The New York Botanical Garden (NY) | 1928 | 8 | 1 |
| Cumberland | Cape Elizabeth | Pond Cove, Maine | University of Michigan (MICH) | 1928 | 3 | 3 |
| Cumberland | Cape Elizabeth | Pond Cove, Maine | University of Michigan (MICH) | 1928 | 1 | 18 |
| Cumberland | Cape Elizabeth | Pond Cove. | University of Washington (WTU) | 1928 | 1 | 15 |
| Cumberland | Portland | East Brown Cow, Casco Bay | University of Michigan (MICH) | 1923 | 7 | |
| Unknown | UNKNOWN | Tidal pool | Field Museum of Natural History (F) | 1919 | 8 | 28 |
| Hancock | Winter Harbor | Schoodic Point, tidal pool | The New York Botanical Garden (NY) | 1919 | 8 | 28 |
| Cumberland | Portland | Peaks' Island, Casco Bay, ME | University of Michigan (MICH) | 1916 | 9 | |
| York | Kittery | Kittery Point, ME | Farlow Herbarium (Harvard University) (FH) | 1916 | 5 | 17 |
| Knox | Rockport | Oakland, Rockport, ME | Farlow Herbarium (Harvard University) (FH) | 1915 | 2 | 26 |
| Cumberland | Harpswell | Casco Bay, Ragged Island | The New York Botanical Garden (NY) | 1914 | 8 | |
| Cumberland | Harpswell | Ragged Island | Field Museum of Natural History (F) | 1912 | | |
| Cumberland | Harpswell | South Harpswell, Ragged Island | The New York Botanical Garden (NY) | 1912 | | |
| Cumberland | Harpswell | Ragged Island | Field Museum of Natural History (F) | 1911 | | |
| Cumberland | Harpswell | South Harpswell, Ragged Island | The New York Botanical Garden (NY) | 1911 | | |
| Cumberland | Brunswick | Mere Point | Field Museum of Natural History (F) | 1909 | 8 | 31 |
| Cumberland | Brunswick | Mere Point | The New York Botanical Garden (NY) | 1909 | 8 | 31 |
| Cumberland | Brunswick | Mere Point | Field Museum of Natural History (F) | 1909 | 8 | 21 |
| Cumberland | Brunswick | Mere Point | The New York Botanical Garden (NY) | 1909 | 8 | 21 |
| York | Kittery | Kittery Point, ME | Farlow Herbarium (Harvard University) (FH) | 1907 | 9 | |
| York | Kittery | Kittery | Field Museum of Natural History (F) | 1907 | 9 | |
| York | Kittery | Kittery | The New York Botanical Garden (NY) | 1907 | 9 | |
| York | Kittery | Kittery | University Herbarium, University of California, Berkeley (UC) | 1907 | 9 | |
| Cumberland | Harpswell | Casco Bay, Bailey's Island, forming a dense fringe just above and below low water mark on rocks exposed to the full force of the waves | The New York Botanical Garden (NY) | 1903 | 7 | 18 |
| Cumberland | Harpswell | Bailey's Island, Casco Bay | University of Michigan (MICH) | 1903 | 7 | 18 |
| Cumberland | Harpswell | Bailey's Island | University Herbarium, University of California, Berkeley (UC) | 1903 | 7 | 18 |
| Cumberland | Harpswell | Bailey's Island, Casco Bay | Michigan State University (MSC) | 1903 | 7 | 18 |
| Cumberland | Harpswell | Bailey's Island, Casco Bay | Miami University (MU) | 1903 | 7 | 18 |
| Cumberland | Harpswell | Eagle Island. Casco Bay, L[...] pool | The New York Botanical Garden (NY) | 1902 | 8 | 31 |
| Lincoln | Bristol | Bristol | The New York Botanical Garden (NY) | 1901 | 7 | 14 |
| Lincoln | Bristol | Muscongus Bay | The New York Botanical Garden (NY) | 1901 | 7 | 14 |
| Lincoln | Bristol | Round Pond, Bristol | The New York Botanical Garden (NY) | 1901 | 7 | 0 |
| Lincoln | Bristol | Round Pond, Bristol, ME | Farlow Herbarium (Harvard University) (FH) | 1901 | 7 | |
| Washington | Jonesport | Sequin Island | The New York Botanical Garden (NY) | 1900 | 9 | 3 |
| Sagadahoc | Georgetown | Seguin Island | The New York Botanical Garden (NY) | 1900 | 9 | 3 |
| Washington | Jonesport | Sequin Island | The New York Botanical Garden (NY) | 1900 | 9 | 1 |
| Sagadahoc | Georgetown | Seguin Island | The New York Botanical Garden (NY) | 1900 | 9 | 1 |
| Sagadahoc | Georgetown | Seguin | Field Museum of Natural History (F) | 1900 | 8 | 24 |
| Hancock | Frenchboro | Duck Island | The New York Botanical Garden (NY) | 1900 | 7 | 13 |
| Knox | Cushing | Cushing | The New York Botanical Garden (NY) | 1889 | 7 | |
| Hancock | Cranberry Isles | Little Cranberry Island, ME | New England Botanical Club (NEBC) | 1889 | 6 | 6 |
| Knox | Rockport | Rockport, Maine | The New York Botanical Garden (NY) | 1886 | | |
| Cumberland | Scarborough | Prouts Neck | The New York Botanical Garden (NY) | 1883 | 8 | 14 |
| Sagadahoc | Phippsburg | Fox Island, Hunnewell's Pond, ME | Farlow Herbarium (Harvard University) (FH) | 1880 | 8 | |
| Unknown | UNKNOWN | Fox Point, Maine | Farlow Herbarium (Harvard University) (FH) | 1880 | 8 | |
| Sagadahoc | Phippsburg | Fox Island, Hunnewell Point | University Herbarium, University of California, Berkeley (UC) | 1880 | 8 | |
| Unknown | UNKNOWN | Maine [No other location details] | Field Museum of Natural History (F) | 1880 | 0 | 0 |
| Cumberland | Portland | Portland | Field Museum of Natural History (F) | 1880 | | |
| Cumberland | Portland | Portland | The New York Botanical Garden (NY) | 1880 | | |
| Washington | Eastport | Eastport, ME | Farlow Herbarium (Harvard University) (FH) | 1875 | 10 | |
| Washington | Eastport | Eastport, ME | Farlow Herbarium (Harvard University) (FH) | 1873 | 10 | |
| Unknown | UNKNOWN | Maine [No other location details] | Field Museum of Natural History (F) | 1872 | 8 | 0 |
| Washington | Eastport | near Eastport | Yale University Herbarium (YPM-YU) | 1872 | 8 | 0 |
| Washington | Eastport | Eastport, ME | Farlow Herbarium (Harvard University) (FH) | 1872 | 8 | |
| Cumberland | Portland | Portland | Field Museum of Natural History (F) | 1865 | | |
| Cumberland | Portland | Portland | The New York Botanical Garden (NY) | 1865 | | |
| Washington | Eastport | Eastport | Field Museum of Natural History (F) | 0 | 0 | 0 |
| Washington | Eastport | Eastport | University Herbarium, University of California, Berkeley (UC) | 0 | 0 | 0 |
| Washington | Lubec | Comstock Point, at Cook Aquaculture raft, Seward Neck, North Lubec, ME | University of New Hampshire - Macroalgal Collection (NHA) | 0 | 0 | 0 |
| Washington | Eastport | Eastport | Yale University Herbarium (YPM-YU) | 0 | 0 | 0 |
| Washington | Eastport | Eastport, ME | Farlow Herbarium (Harvard University) (FH) | 0 | | |
| Knox | Rockport | Rockport, ME | Farlow Herbarium (Harvard University) (FH) | 0 | | |