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

Brown University - Algae
Catalog #: ABRU00004060
I. Holden s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Twin Lakes, Salisbury, CT

Field Museum of Natural History
Catalog #: C0534339F
I. Holden #s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Litchfield, Twin Lakes, Salisbury

Yale University Herbarium
Catalog #: YU.094368
Isaac Holden s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Twin Lakes, Salisbury, CT

University of Michigan
Catalog #: 676978
Isaac Holden #s.n. 16 July 1893
Chara contraria A.Braun ex Kützing
United States, Connecticut, Litchfield, Twin Lakes, Salisbury

University of Michigan
Catalog #: 677116
Isaac Holden #s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Litchfield, Twin Lakes, Salisbury

Michigan State University Algae
Catalog #: MSC0181762
Isaac Holden #s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Litchfield, Twin Lakes, Salisbury

Miami University - Algae
Catalog #: 000188337
Isaac Holden #s.n. 16 July 1893
Chara fragilis A.N.Desvaux
United States, Connecticut, Litchfield, Twin Lakes, Salisbury

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00141549
5fd2110b-12cc-474c-9d98-432b0e176181
Isaac Holden #s.n. 16 July 1893
Chara contraria J.L.Thuiller
United States, Connecticut, Litchfield, Twin Lakes, Salisbury