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

Brown University
Catalog #: ABRU00004739
F. S. Collins s.n. 22 August 1913
Ceramium clavulatum C.Agardh
Bermuda, Harrington Sound, Bermuda

Field Museum of Natural History
Catalog #: C0515471F
F. S. Collins #s.n. 22 August 1913
Ceramium clavulatum C.Agardh
Bermuda, In shallow water, Harrington Sound

University of Michigan
Catalog #: 645565
F.S. Collins #s.n. 22 August 1913
Centroceras clavulatum (C.Agardh) Montagne
Bermuda, Harrington Sound

University of Michigan
Catalog #: 645738
F.S. Collins #s.n. 22 August 1913
Centroceras clavulatum (C.Agardh) Montagne
Bermuda, Harrington Sound

Michigan State University
Catalog #: MSC0181608
F.S. Collins #s.n. 22 August 1913
Ceramium clavulatum C.Agardh
Bermuda, Harrington Sound

Miami University
Catalog #: 000196586
F.S. Collins #s.n. 22 August 1913
Ceramium clavulatum C.Agardh
Bermuda, Harrington Sound

Yale University Herbarium
Catalog #: YU.095207
Frank Shipley Collins s.n. 22 August 1913
Ceramium clavulatum C.Agardh
Bermuda, Harrington Sound, Bermuda