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

Brown University - Algae
Catalog #: ABRU00002828
I. Holden s.n. 07 July 1892
Spirulina subsalsa Oersted
United States, Connecticut, Fresh Pond, Stratford, CT

Field Museum of Natural History
Catalog #: C0576034F
I. Holden #s.n. 07 July 1892
Spirulina subsalsa Oersted
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Yale University Herbarium
Catalog #: YU.091332
Isaac Holden s.n. 07 July 1892
Spirulina subsalsa Oersted
United States, Connecticut, Fairfield, Stratford; Fresh Pond, Stratford, CT

Michigan State University Algae
Catalog #: MSC0184822
Isaac Holden #s.n. 07 July 1892
Spirulina subsalsa Oersted
United States, Connecticut, Fairfield, Stratford

Miami University - Algae
Catalog #: 000186657
Isaac Holden #s.n. 07 July 1892
Spirulina subsalsa Oersted
United States, Connecticut, Fairfield, Stratford