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

Brown University - Algae
Catalog #: ABRU00004404
F. S. Collins s.n. 11 September 1910
Phormidium favosum (Bory) Gomont
United States, Massachusetts, Salt Pond, Eastham, MA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0012536
F.S Collins #s.n. 11 July 1910
Phormidium favosum (Bory) Gomont
United States, Massachusetts, Barnstable, High water mark, shore of salt pond, Eastham

Michigan State University Algae
Catalog #: MSC0184050
F.S. Collins #s.n. 11 September 1910
Phormidium favosum (Bory) Gomont
United States, Massachusetts, Barnstable, salt pond, Eastham

Miami University - Algae
Catalog #: 000189178
F.S. Collins #s.n.
Phormidium favosum (Bory) Gomont
United States, Massachusetts, Barnstable, salt pond, Eastham

Yale University Herbarium
Catalog #: YU.094713
Frank Shipley Collins s.n. 11 September 1910
Phormidium favosum (Bory) Gomont
United States, Massachusetts, Barnstable, Eastham; Salt Pond, Eastham, MA