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

Brown University - Algae
Catalog #: ABRU00003475
F. S. Collins s.n.
Calothrix aeruginea Thuret ex Bornet & Flahault
United States, Maine, Otter Creek, Mount Desert Island, ME

Michigan State University Algae
Catalog #: MSC0181494
F.S. Collins #s.n. 00 July 1900
Calothrix aeruginea Thuret ex Bornet & Flahault
United States, Maine, Hancock, Otter Creek, Mount Desert Island

Miami University - Algae
Catalog #: 000187435
F.S. Collins #s.n. 00 July 1900
Calothrix aeruginea Thuret ex Bornet & Flahault
United States, Maine, Hancock, Otter Creek, Mount Desert Island

Yale University Herbarium
Catalog #: YU.091887
Frank Shipley Collins s.n. 01 June 1901
Calothrix aeruginea Thuret ex Bornet & Flahault
United States, Maine, Otter Creek, Mount Desert Island, ME