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

Brown University - Algae
Catalog #: ABRU00003649
F. S. Collins s.n. 17 July 1902
Calothrix pulvinata C.Agardh ex Bornet & Flahault
United States, Maine, Cumberland, Harpswell; South Harpswell, ME

Michigan State University Algae
Catalog #: MSC0181534
F.S. Collins #s.n. 17 July 1902
Calothrix pulvinata C.Agardh ex Bornet & Flahault
United States, Maine, Cumberland, South Harpswell

Miami University - Algae
Catalog #: 000187929
F.S. Collins #s.n. 17 July 1902
Calothrix pulvinata C.Agardh ex Bornet & Flahault
United States, Maine, Cumberland, South Harpswell

Yale University Herbarium
Catalog #: YU.106586
Frank Shipley Collins s.n. 17 July 1902
Calothrix pulvinata C.Agardh ex Bornet & Flahault
United States, Maine, Cumberland, Harpswell; South Harpswell, ME