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

University Herbarium, University of California, Berkeley
Catalog #: UC1827981
F. S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

Brown University - Algae
Catalog #: ABRU00002965
F.S. Collins s.n.
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Pine Banks Park, Melrose, MA

University of Michigan
Catalog #: 736725
F.S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

University of Michigan
Catalog #: 736729
F.S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

Michigan State University Algae
Catalog #: MSC0184802
F.S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

Miami University - Algae
Catalog #: 000186777
F.S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147826
0a374f06-6b84-4ef2-bc6f-12173f9388b6
F.S. Collins #s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Middlesex, Pine Banks Park, Melrose

Yale University Herbarium
Catalog #: YU.091448
Frank Shipley Collins s.n. 00 May 1892
Spirogyra quadrata (Hassall) P.Petit
United States, Massachusetts, Melrose; Pine Banks Park, Melrose, MA