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

Brown University - Algae
Catalog #: ABRU00004596
F. S. Collins s.n. 06 August 1911
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Lost Pond, Brookline, MA

University of Michigan
Catalog #: 736178
F.S. Collins #s.n. 06 August 1911
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Norfolk, Lost Pond, Brookline

University of Michigan
Catalog #: 736179
F.S. Collins #s.n. 06 August 1911
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Norfolk, Lost Pond, Brookline

Michigan State University Algae
Catalog #: MSC0182228
F.S. Collins #s.n. 06 August 1911
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Norfolk, Lost Pond, Brookline

Miami University - Algae
Catalog #: 000189248
F.S. Collins #s.n.
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Norfolk, Lost Pond, Brookline

Yale University Herbarium
Catalog #: YU.095067
Frank Shipley Collins s.n. 06 August 1911
Cosmarium pyramidatum Brébisson ex Ralfs
United States, Massachusetts, Lost Pond, Brookline, MA