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

Brown University - Algae
Catalog #: ABRU00003810
F. S. Collins s.n. 10 July 1901
Cladophora gracilis (Griffiths) Kützing
United States, Maine, Hancock, Brooksville; Cape Rosier, ME

Field Museum of Natural History
Catalog #: C0530038F
F. S. Collins #s.n. 10 July 1901
Cladophora gracilis (Griffiths) Kützing
United States, Maine, Hancock, Cape Rosier

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00204880
31c7e583-7950-4112-8ccd-894d6e9f1cbb
F. S. Collins #s.n. 10 July 1901
Cladophora gracilis (Griffiths) K
United States, Maine, Hancock, Cape Rosier

University of Michigan
Catalog #: 684101
F.S. Collins #s.n. 10 July 1901
Cladophora ruchingeri (C.Agardh) Kützing
United States, Maine, Cape Rosier

Michigan State University Algae
Catalog #: MSC0181952
F.S. Collins #s.n. 10 July 1901
Cladophora flexuosa (O.F.Müller) Kützing
United States, Maine, Hancock, Cape Rosier

Miami University - Algae
Catalog #: 000187954
F.S. Collins #s.n. 10 July 1901
Cladophora gracilis (Griffiths) Kützing
United States, Maine, Cape Rosier

Yale University Herbarium
Catalog #: YU.092064
Frank Shipley Collins s.n. 10 July 1901
Cladophora gracilis (Griffiths) Kützing
United States, Maine, Hancock, Brooksville; Cape Rosier, ME