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

Brown University - Algae
Catalog #: ABRU00002879
I. Holden s.n.
Callithamnion baileyi Harvey
United States, Connecticut, Bridgeport, CT

Field Museum of Natural History
Catalog #: C0514313F
I. Holden #s.n.
Callithamnion baileyi Harvey
United States, Connecticut, Fairfield, Bridgeport

Yale University Herbarium
Catalog #: YU.091377
Isaac Holden s.n.
Callithamnion baileyi Harvey
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University Herbarium, University of California, Berkeley
Catalog #: UC1838252
Isaac Holden #296
Callithamnion baileyi Harvey
United States, Connecticut, Fairfield, Bridgeport

University of Michigan
Catalog #: 644564
Isaac Holden #s.n.
Callithamnion tetragonum (Withering) S.F.Gray
United States, Connecticut, Bridgeport

University of Michigan
Catalog #: 644624
Isaac Holden #s.n.
Callithamnion tetragonum (Withering) S.F.Gray
United States, Connecticut, Bridgeport

University Herbarium, University of California, Berkeley
Catalog #: UC1838251
Isaac Holden #s.n.
Callithamnion baileyi Harvey
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0181477
Isaac Holden #s.n.
Callithamnion tetragonum (Withering) S.F.Gray
United States, Connecticut, Fairfield, Bridgeport

Miami University - Algae
Catalog #: 000186703
Isaac Holden #s.n.
Callithammion baileyi
United States, Connecticut, Bridgeport