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

University Herbarium, University of California, Berkeley
Catalog #: UC687683
A. B. Seymour #s.n. 04 July 1900
Hydrodictyon reticulatum (Linnaeus) Bory de Saint-Vincent
United States, Massachusetts, Suffolk, Cambridge

Brown University
Catalog #: ABRU00002576
W. J. V. Osterhout s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Aquinnah; Gay Head, Martha's Vineyard, MA

Drexel University, Academy of Natural Sciences
Catalog #: PH00220881
W. J. V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
USA, Massachusetts, Dukes, Gay Head, Martha's Vineyard

University of Michigan
Catalog #: 667843
W.J.V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Gay Head, Martha's Vineyard

University of Michigan
Catalog #: 667908
W.J.V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Gay Head, Martha's Vineyard

Michigan State University
Catalog #: MSC0184261
W.J.V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Gay Head, Martha's Vineyard

University Herbarium, University of California, Berkeley
Catalog #: UC273960
Winthrop J. V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Gay Head, Martha's Vineyard

Miami University
Catalog #: 000186443
Winthrop J.V. Osterhout #s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States, Massachusetts, Dukes, Gay Head, Martha's Vineyard

Yale University Herbarium
Catalog #: YU.091122
Winthrop John Vanleuven Osterhout s.n. 22 August 1892
Polysiphonia elongata (Hudson) Sprengel
United States of America, Massachusetts, Dukes, Aquinnah; Gay Head, Martha's Vineyard, MA