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

Brown University - Algae
Catalog #: ABRU00004522
F. S. Collins s.n. 11 May 1903
Gloeocapsa polydermatica Kützing
United States, Massachusetts, The Cascade, Melrose, MA

Michigan State University Algae
Catalog #: MSC0182886
F.S. Collins #s.n. 11 May 1910
Gloeocystis polydermatica (Kützing) Hindák
United States, Massachusetts, Middlesex, Cascade, Melrose

Miami University - Algae
Catalog #: 000189126
F.S. Collins #s.n. 11 May 1910
Gloeocystis polydermatica (Kützing) Hindák
United States, Massachusetts, Middlesex, Cascade, Melrose

Yale University Herbarium
Catalog #: YU.094993
Frank Shipley Collins s.n. 11 May 1903
Gloeocapsa polydermatica Kützing
United States, Massachusetts, Melrose; The Cascade, Melrose, MA