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

Brown University - Algae
Catalog #: ABRU00002687
I. Holden s.n.
Rhabdonia tenera (J.Agardh) J.Agardh
United States, Connecticut, Bridgeport, CT

Field Museum of Natural History
Catalog #: C0507071F
I. Holden #s.n. 02 November 1890
Rhabdonia tenera (J.Agardh) J.Agardh
United States, Connecticut, Fairfield, Bridgeport

Yale University Herbarium
Catalog #: YU.091218
Isaac Holden s.n.
Rhabdonia tenera (J.Agardh) J.Agardh
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 641106
Isaac Holden #s.n.
Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne
United States, Connecticut, Bridgeport

University of Michigan
Catalog #: 670778
Isaac Holden #s.n.
Rhabdonia tenera (J.Agardh) J.Agardh
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0181085
Isaac Holden #s.n.
Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne
United States, Connecticut, Fairfield, Bridgeport

Miami University - Algae
Catalog #: 000186487
Isaac Holden #s.n.
Rhabdonia tenera (J.Agardh) J.Agardh
United States, Connecticut, Bridgeport