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

Brown University - Algae
Catalog #: ABRU00002958
W. A. Setchell s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, Norwich, CT

University of Michigan
Catalog #: 736603
W.A. Setchell #s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, New London, Norwich

University of Michigan
Catalog #: 736606
W.A. Setchell #s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, New London, Norwich

Michigan State University Algae
Catalog #: MSC0184751
W.A. Setchell #s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, New London, Norwich

Miami University - Algae
Catalog #: 000210396
W.A. Setchell #s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, New London, Norwich

Yale University Herbarium
Catalog #: YU.106492
William Albert Setchell s.n. 20 April 1892
Spirogyra calospora Cleve
United States, Connecticut, New London, Norwich; Norwich, CT