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

Brown University - Algae
Catalog #: ABRU00004595
F. S. Collins s.n. 24 September 1911
Cosmarium punctulatum Brébisson
United States, Massachusetts, Hemlock Pool, Middlesex Fells, MA

University of Michigan
Catalog #: 736169
F.S. Collins #s.n. 24 September 1911
Cosmarium punctulatum Brébisson
United States, Massachusetts, Middlesex, Hemlock Pool, Middlesex Fells

University of Michigan
Catalog #: 736171
F.S. Collins #s.n. 24 September 1911
Cosmarium punctulatum Brébisson
United States, Massachusetts, Middlesex, Hemlock Pool, Middlesex Fells

Michigan State University Algae
Catalog #: MSC0182227
F.S. Collins #s.n. 24 September 1911
Cosmarium punctulatum Brébisson
United States, Massachusetts, Middlesex, Hemlock Pool, Middlesex Fells

Miami University - Algae
Catalog #: 000189247
F.S. Collins #s.n.
Cosmarium punctulatum Brébisson
United States, Massachusetts, Middlesex, Hemlock Pool, Middlesex Fells

Yale University Herbarium
Catalog #: YU.095066
Frank Shipley Collins s.n. 24 September 1911
Cosmarium punctulatum Brébisson
United States, Massachusetts, Middlesex, Hemlock Pool, Middlesex Fells, MA