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

Brown University - Algae
Catalog #: ABRU00004196
F. S. Collins s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Herring Pond, Eastham, MA

University of Michigan
Catalog #: 736123
F.S. Collins #s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Herring Pond, Eastham

University of Michigan
Catalog #: 736128
F.S. Collins #s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Herring Pond, Eastham

Michigan State University Algae
Catalog #: MSC0182211
F.S. Collins #s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Herring Pond, Eastham

Miami University - Algae
Catalog #: 000188531
F.S. Collins #s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Herring Pond, Eastham

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00142666
badb9ee6-a2d3-4bfc-9113-c872814dd78b
F.S. Collins #s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Herring Pond, Eastham

Yale University Herbarium
Catalog #: YU.094503
Frank Shipley Collins s.n. 08 July 1907
Cosmarium margaritiferum Meneghini ex Ralfs
United States, Massachusetts, Barnstable, Eastham; Herring Pond, Eastham, MA