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

Brown University - Algae
Catalog #: ABRU00003113
Mrs. W. C. Simmons s.n.
Callithamnion baileyi Harvey
United States, Rhode Island, Jamestown; Conanicut Island, RI

Yale University Herbarium
Catalog #: YU.091576
Mrs. W. C. Simmons s.n. 00 March 1898
Callithamnion baileyi Harvey
United States, Rhode Island, Newport, Jamestown; Conanicut Island, RI

University of Michigan
Catalog #: 644568
Mrs. W.C. Simmons #s.n. 00 March 1898
Callithamnion tetragonum (Withering) S.F.Gray
United States, Rhode Island, Conanicut Island

University of Michigan
Catalog #: 644626
Mrs. W.C. Simmons #s.n. 00 March 1898
Callithamnion tetragonum (Withering) S.F.Gray
United States, Rhode Island, Conanicut Island

Field Museum of Natural History
Catalog #: C0514345F
Mrs. W.C. Simmons #s.n. 00 March 1898
Callithamnion baileyi Harvey
United States, Rhode Island, Conanicut Island

Michigan State University Algae
Catalog #: MSC0181478
Mrs. W.C. Simmons #s.n. 00 March 1898
Callithamnion tetragonum (Withering) S.F.Gray
United States, Rhode Island, Newport, Conanicut Island

Miami University - Algae
Catalog #: 000186901
Mrs. W.C. Simmons #s.n. 00 March 1898
Callithamnion baileyi Harvey
United States, Rhode Island, Conanicut Island