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

Brown University - Algae
Catalog #: ABRU00002967
W. A. Setchell s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, Foxon, CT

University Herbarium, University of California, Berkeley
Catalog #: UC1827988
W. A. Setchell #367b 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, New Haven, Foxon.

Miami University - Algae
Catalog #: 000210397
W. A. Setchell #s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, Foxon

University of Michigan
Catalog #: 736753
W.A. Setchell #s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, New Haven, Foxon

University of Michigan
Catalog #: 736877
W.A. Setchell #s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, New Haven, Foxon

Michigan State University Algae
Catalog #: MSC0184813
W.A. Setchell #s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, New Haven, Foxon.

Yale University Herbarium
Catalog #: YU.106494
William Albert Setchell s.n. 30 April 1892
Spirogyra varians (Hassall) Kützing
United States, Connecticut, Foxon, CT