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

Brown University - Algae
Catalog #: ABRU00003722
I. Holden s.n. 07 September 1901
Cladophora expansa var. glomerata Thuret ex Collins
United States, Connecticut, Fresh Pond, Stratford, CT

Field Museum of Natural History
Catalog #: C0530201F
I. Holden #s.n. 07 September 1901
Cladophora pulverulenta (Mertens) Phinney
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Yale University Herbarium
Catalog #: YU.092110
Isaac Holden s.n. 07 September 1901
Cladophora expansa var. glomerata Thuret ex Collins
United States, Connecticut, Fairfield, Stratford; Fresh Pond, Stratford, CT

University of Michigan
Catalog #: 684619
Isaac Holden #s.n. 07 September 1901
Cladophora vagabunda (Linnaeus) Hoek
United States, Connecticut, Fairfield, Fresh Pond, Stratford

University of Michigan
Catalog #: 684637
Isaac Holden #s.n. 07 September 1901
Cladophora vagabunda (Linnaeus) Hoek
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Michigan State University Algae
Catalog #: MSC0181929
Isaac Holden #s.n. 07 September 1901
Cladophora vagabunda (Linnaeus) Hoek
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Miami University - Algae
Catalog #: 000188005
Isaac Holden #s.n. 07 September 1901
Cladophora expansa var. glomerata Thuret ex Collins
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00204933
7513080a-1f6b-45d1-b51d-709f77e4a55e
Isaac Holden #s.n. 07 September 1901
Cladophora pulverulenta (Mertens) Phinney
United States, Connecticut, Fairfield, Fresh Pond, Stratford