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

Brown University - Algae
Catalog #: ABRU00003818
F. S. Collins s.n. 18 July 1903
Cylindrospermum majus Kützing ex Bornet & Flahault
United States, Maine, Cumberland, Harpswell; South Harpswell, ME

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0012287
F. S. Collins #1108 18 July 1903
Cylindrospermum majus Kützing ex Bornet & Flahault
United States, Maine, Cumberland, South Harpswell

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00233891
03910d67-07c8-4d6d-bdf0-7e569bc3d50d
F. S. Collins #s.n. 18 July 1903
Cylindrospermum macrospermum Kützing, 1845
United States, Maine, So. Harpswell

Michigan State University Algae
Catalog #: MSC0182312
F.S. Collins #s.n. 18 July 1903
Cylindrospermum majus Kützing ex Bornet & Flahault
United States, Maine, Cumberland, South Harpswell

Miami University - Algae
Catalog #: 000188097
F.S. Collins #s.n. 18 July 1903
Cylindrospermum majus Kützing ex Bornet & Flahault
United States, Maine, Cumberland, South Harpswell

Yale University Herbarium
Catalog #: YU.092191
Frank Shipley Collins s.n. 18 July 1903
Cylindrospermum majus Kützing ex Bornet & Flahault
United States, Maine, Cumberland, Harpswell; South Harpswell, ME