Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University - Algae
Catalog #: ABRU00003688
F. S. Collins s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Washington, Machias; Starboard Island, Machiasport, ME

University Herbarium, University of California, Berkeley
Catalog #: UC111801
F. S. Collins #s.n. 11 July 1902
Membranoptera denticulata (Montagne) Kylin
United States, Maine, Washington, Starboard Island, Machiasport, Maine

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00216894
f2c45dfc-0518-42b0-b373-0bc0f83b8e47
F. S. Collins #s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Washington, Starboard Island, Machiasport

University of Michigan
Catalog #: 650775
F.S. Collins #s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Washington, Starboard Island, Machiasport

Field Museum of Natural History
Catalog #: C0509532F
F.S. Collins #s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Starboard Island, Machiasport

University of Michigan
Catalog #: 662967
F.S. Collins #s.n. 11 July 1902
Membranoptera spinulosa (Ruprecht) Kuntze
United States, Maine, Washington, Starboard Island, Machiasport

Michigan State University Algae
Catalog #: MSC0183431
F.S. Collins #s.n. 11 July 1902
Membranoptera spinulosa (Ruprecht) Kuntze
United States, Maine, Washington, Starboard Island, Machiasport

Miami University - Algae
Catalog #: 000187971
F.S. Collins #s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Washington, Starboard Island, Machiasport

Yale University Herbarium
Catalog #: YU.092078
Frank Shipley Collins s.n. 11 July 1902
Delesseria denticulata Harvey
United States, Maine, Washington, Machias; Starboard Island, Machiasport, ME