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

Brown University - Algae
Catalog #: ABRU00003670
Mrs. W. C. Simmons s.n. 31 August 1901
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Easton's Point, Newport, RI

Yale University Herbarium
Catalog #: YU.092062
Mrs. W. C. Simmons s.n. 31 August 1901
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Newport, Newport; Easton's Point, Newport, RI

University of Michigan
Catalog #: 684087
Mrs. W.C. Simmons #s.n. 31 August 1901
Cladophora albida (Nees) Kutzing
United States, Rhode Island, Easton's Point, Newport

Michigan State University Algae
Catalog #: MSC0181897
Mrs. W.C. Simmons #s.n. 31 August 1901
Cladophora flexuosa f. densa F.S.Collins
United States, Rhode Island, Newport, Easton's Point, Newport

Miami University - Algae
Catalog #: 000187952
Mrs. W.C. Simmons #s.n. 31 August 1901
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Easton's Point, Newport

Field Museum of Natural History
Catalog #: C0500200F
W.C. Simmons #s.n. 31 August 1901
Cladophora flexuosa f. densa F.S.Collins
United States, Rhode Island, Easton's Point, Newport