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

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00233745
b4a14d96-7699-4d5c-89a9-8ff6542b5337
F. S. Collins #s.n. 14 August 1903
Calothrix stagnalis Gomont
United States, Massachusetts, Middlesex, Medford

University Herbarium, University of California, Berkeley
Catalog #: UC740269
H. A. Green #s.n. 30 August 1895
Stilophora tenella (Esper) P.C.Silva
United States, Connecticut, Fairfield, Black Rock

Brown University - Algae
Catalog #: ABRU00002661
I. Holden s.n. 03 July 1892
Haematococcus lacustris (Girod-Chantrans) Roststafinski
United States, Connecticut, Pequonnock River, Bridgeport, CT

Yale University Herbarium
Catalog #: YU.091194
Isaac Holden s.n. 03 July 1892
Haematococcus lacustris (Girod-Chantrans) Roststafinski
United States, Connecticut, Bridgeport; Pequonnock River, Bridgeport, CT

University Herbarium, University of California, Berkeley
Catalog #: UC1827932
Isaac Holden #s.n. 03 July 1892
Sphaerella lacustris (Girod-Chantrans) Wittrock
United States, Connecticut, Fairfield, Bridgeport.

University of Michigan
Catalog #: 728271
Isaac Holden #s.n. 03 July 1892
Haematococcus lacustris (Girod-Chantrans) Roststafinski
United States, Connecticut, Fairfield, Pequinnock River, Bridgeport

University of Michigan
Catalog #: 728273
Isaac Holden #s.n. 03 July 1892
Haematococcus lacustris (Girod-Chantrans) Roststafinski
United States, Connecticut, Fairfield, Pequinnock River, Bridgeport

Michigan State University Algae
Catalog #: MSC0182923
Isaac Holden #s.n. 03 July 1892
Haematococcus pluvialis Flotow
United States, Connecticut, Fairfield, Pequinnock River dam, Bridgeport

Miami University - Algae
Catalog #: 000186463
Isaac Holden #s.n. 03 July 1892
Haematococcus lacustris (Girod-Chantrans) Roststafinski
United States, Connecticut, Fairfield, Pequinnock River, Bridgeport