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

Brown University
Catalog #: ABRU00003776
Mrs. W. C. Simmons s.n.
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Newport, RI

Yale University Herbarium
Catalog #: YU.106597
Mrs. W. C. Simmons s.n.
Cladophora flexuosa (O.F.Müller) Kützing
United States of America, Rhode Island, Newport, Newport; Newport, RI

University of Michigan
Catalog #: 684090
Mrs. W.C. Simmons #s.n.
Cladophora albida (Nees) Kutzing
United States, Rhode Island, Newport

University of Michigan
Catalog #: 684666
Mrs. W.C. Simmons #s.n.
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Newport, Newport

Michigan State University
Catalog #: MSC0181896
Mrs. W.C. Simmons #s.n.
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Newport, Newport

Miami University
Catalog #: 000188059
Mrs. W.C. Simmons #s.n.
Cladophora flexuosa (O.F.Müller) Kützing
United States, Rhode Island, Newport