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

Brown University - Algae
Catalog #: ABRU00003775
I. Holden s.n. 04 July 1891
Cladophora flexuosa (O.F.Müller) Kützing
United States, Connecticut, Bridgeport, CT

Yale University Herbarium
Catalog #: YU.092159
Isaac Holden s.n. 04 July 1891
Cladophora flexuosa (O.F.Müller) Kützing
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 684089
Isaac Holden #s.n. 04 July 1891
Cladophora sericea (Hudson) Kützing
United States, Connecticut, Bridgeport

University of Michigan
Catalog #: 684665
Isaac Holden #s.n. 04 July 1891
Cladophora flexuosa (O.F.Müller) Kützing
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0181895
Isaac Holden #s.n. 04 July 1891
Cladophora flexuosa (O.F.Müller) Kützing
United States, Connecticut, Fairfield, Bridgeport

Miami University - Algae
Catalog #: 000188058
Isaac Holden #s.n. 04 July 1891
Cladophora flexuosa (O.F.Müller) Kützing
United States, Connecticut, Bridgeport