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

Brown University - Algae
Catalog #: ABRU00003777
F. S. Collins s.n. 14 July 1903
Cladophora fracta (O.F.Müller ex Vahl) Kützing
United States, Maine, Cumberland, Harpswell; Ragged Island, Casco Bay, ME

Field Museum of Natural History
Catalog #: C0530179F
F. S. Collins #s.n. 14 July 1903
Cladophora pulverulenta (Mertens) Phinney
United States, Maine, Cumberland, Ragged Island, Casco Bay

University of Michigan
Catalog #: 684094
F.S. Collins #s.n. 14 July 1903
Cladophora flavescens (Roth) Kützing
United States, Maine, Cumberland, Ragged Island, Casco Bay

University of Michigan
Catalog #: 684727
F.S. Collins #s.n. 14 July 1903
Cladophora fracta f. flavescens (Roth) Kützing
United States, Maine, Cumberland, Ragged Island, Casco Bay

Michigan State University Algae
Catalog #: MSC0181962
F.S. Collins #s.n. 14 July 1903
Cladophora fracta f. flavescens (Roth) Kützing
United States, Maine, Cumberland, Ragged Island, Casco Bay

Miami University - Algae
Catalog #: 000188060
F.S. Collins #s.n. 14 July 1903
Cladophora fracta (O.F.Müller ex Vahl) Kützing
United States, Maine, Cumberland, Ragged Island, Casco Bay

Yale University Herbarium
Catalog #: YU.092160
Frank Shipley Collins s.n. 14 July 1903
Cladophora fracta (O.F.Müller ex Vahl) Kützing
United States, Maine, Cumberland, Harpswell; Ragged Island, Casco Bay, ME