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

Brown University - Algae
Catalog #: ABRU00003365
I. Holden s.n. 27 May 1900
Oscillatoria formosa Bory de Saint-Vincent ex Gomont
United States, Connecticut, near Fresh Pond, Stratford, CT

Miami University - Algae
Catalog #: 000187313
I. Holden #s.n. 27 May 1900
Oscillatoria formosa Bory de Saint-Vincent ex Gomont
United States, Connecticut, Fairfield, near Fresh Pond, Stratford

Yale University Herbarium
Catalog #: YU.091793
Isaac Holden s.n. 27 May 1900
Oscillatoria formosa Bory de Saint-Vincent ex Gomont
United States, Connecticut, Fairfield, Stratford; near Fresh Pond, Stratford, CT

Michigan State University Algae
Catalog #: MSC0183139
Isaac Holden #s.n. 27 May 1900
Kamptonema formosum Bory de Saint-Vincent ex Gomont
United States, Connecticut, Fairfield, near Fresh Pond, Stratford