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

Brown University - Algae
Catalog #: ABRU00002647
I. Holden s.n. 05 October 1890
Oscillatoria tenuis C.Agardh
United States, Connecticut, Bruce's Brook, Bridgeport, CT

Yale University Herbarium
Catalog #: YU.106440
Isaac Holden s.n. 05 October 1890
Oscillatoria tenuis C.Agardh
United States, Connecticut, Bridgeport; Bruce's Brook, Bridgeport, CT

Michigan State University Algae
Catalog #: MSC0183884
Isaac Holden #s.n. 05 October 1890
Oscillatoria tenuis C.Agardh
United States, Connecticut, Fairfield, Bruce's Brook, Bridgeport

Miami University - Algae
Catalog #: 000210348
Isaac Holden #s.n. 05 October 1890
Oscillatoria tenuis C.Agardh
United States, Connecticut, Fairfield, Bruce's Brook, Bridgeport