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

Brown University - Algae
Catalog #: ABRU00003050
I. Holden s.n. 17 August 1895
Polysiphonia olneyi Harvey
United States, Connecticut, Fresh Pond, Stratford, CT

Field Museum of Natural History
Catalog #: C0510154F
I. Holden #s.n. 17 August 1895
Polysiphonia olneyi Harvey
United States, Connecticut, Fairfield, "Fresh Pond", Stratford

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00221170
12d0b776-d3c8-4b68-aaec-1dc01ee3aef0
I. Holden #s.n.
Polysiphonia olneyi Harvey
United States, Connecticut, Fairfield, Stratford

Yale University Herbarium
Catalog #: YU.091522
Isaac Holden s.n. 17 August 1895
Polysiphonia olneyi Harvey
United States, Connecticut, Fairfield, Stratford; Fresh Pond, Stratford, CT

University of Michigan
Catalog #: 664057
Isaac Holden #s.n. 17 August 1895
Melanothamnus harveyi (Bailey) Diaz-Tapia & Maggs
United States, Connecticut, Fairfield, Fresh Pond, Stratford

University of Michigan
Catalog #: 664067
Isaac Holden #s.n. 17 August 1895
Melanothamnus harveyi (Bailey) Diaz-Tapia & Maggs
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Michigan State University Algae
Catalog #: MSC0184288
Isaac Holden #s.n. 17 August 1895
Polysiphonia olneyi Harvey
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Miami University - Algae
Catalog #: 000186854
Isaac Holden #s.n. 17 August 1895
Polysiphonia olneyi Harvey
United States, Connecticut, Fairfield, Fresh Pond, Stratford