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

Brown University - Algae
Catalog #: ABRU00003134
I. Holden s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Island Brook, Bridgeport, CT

Miami University - Algae
Catalog #: 000186920
I. Holden #s.n. 09 July 1892
Sprirogyra nitida
United States, Connecticut, Fairfield, Island Brook, Bridgeport

Yale University Herbarium
Catalog #: YU.091595
Isaac Holden s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Fairfield, Bridgeport; Island Brook, Bridgeport, CT

University of Michigan
Catalog #: 736690
Isaac Holden #s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Fairfield, Island Brook, Bridgeport

University of Michigan
Catalog #: 736694
Isaac Holden #s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Fairfield, Island Brook, Bridgeport

Michigan State University Algae
Catalog #: MSC0184789
Isaac Holden #s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Fairfield, Island Brook, Bridgeport

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147812
51f22608-3e0c-4944-8fcc-605879ac5b0c
Isaac Holden #s.n. 09 July 1892
Spirogyra nitida (Dillwyn) Link
United States, Connecticut, Fairfield, Island Brook, Bridgeport