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

Brown University - Algae
Catalog #: ABRU00002961
F. S. Collins s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Medford, MA

University Herbarium, University of California, Berkeley
Catalog #: UC1827955
F. S. Collins #s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Middlesex, Medford

University of Michigan
Catalog #: 736641
F.S. Collins #s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Middlesex, Medford

University of Michigan
Catalog #: 736642
F.S. Collins #s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Middlesex, Medford

Michigan State University Algae
Catalog #: MSC0184783
F.S. Collins #s.n. 01 May 1891
Spirogyra weberi var. grevilleana (Hassal) O.Kirchner, 1878
United States, Massachusetts, Middlesex, Medford

Miami University - Algae
Catalog #: 000186773
F.S. Collins #s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Middlesex, Medford

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147788
468bc503-532f-4b72-8041-d84943542c80
F.S. Collins #s.n. 01 May 1891
Spirogyra gracilis K
United States, Massachusetts, Middlesex, Medford

Yale University Herbarium
Catalog #: YU.091444
Frank Shipley Collins s.n. 01 May 1891
Spirogyra grevilleana (Hassall) Kützing
United States, Massachusetts, Middlesex, Medford; Medford, MA