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

Brown University - Algae
Catalog #: ABRU00003571
I. Holden s.n. 22 September 1901
Polysiphonia harveyi var. arietina Harvey
United States, Connecticut, Charles Island, near Milford, CT

Field Museum of Natural History
Catalog #: C0512736F
I. Holden #s.n. 22 September 1901
Polysiphonia harveyi Bailey
United States, Connecticut, New Haven, Charles Island near Milford

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00221053
8afa4e5e-69a1-4857-bad7-49092fa33945
I. Holden #s.n. 22 September 1901
Polysiphonia harveyi Bailey
United States, Connecticut, New Haven, Charles Island near Milford

Yale University Herbarium
Catalog #: YU.091972
Isaac Holden s.n. 22 September 1901
Polysiphonia harveyi var. arietina Harvey
United States, Connecticut, New Haven, Milford; Charles Island, Milford, CT

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0017005
Isaac Holden #889 22 September 1901
Melanothamnus harveyi var. arietina (Harvey) M.J.Wynne, 2017
United States, Connecticut, New Haven, Charles Island near Milford

University of Michigan
Catalog #: 664050
Isaac Holden #s.n. 22 September 1901
Melanothamnus harveyi (Bailey) Diaz-Tapia & Maggs
United States, Connecticut, New Haven, Charles Island near Milford

University of Michigan
Catalog #: 664059
Isaac Holden #s.n. 22 September 1901
Melanothamnus harveyi (Bailey) Diaz-Tapia & Maggs
United States, Connecticut, New Haven, Charles Island near Milford

Michigan State University Algae
Catalog #: MSC0184275
Isaac Holden #s.n. 22 September 1901
Polysiphonia harveyi var. arietina Harvey
United States, Connecticut, New Haven, Charles Island near Milford

Miami University - Algae
Catalog #: 000187526
W.A. Setchell #s.n. 12 December 1898
Polysiphonia harveyi var. arietina Harvey
United States, California, Marin, Dillon's Beach, entrance to Tomales Bay