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

Brown University - Algae
Catalog #: ABRU00004998
F. S. Collins s.n. 02 August 1913
Ceramium tenuissimum (Roth) Areschoug
Bermuda, Cooper's Island, Bermuda

Field Museum of Natural History
Catalog #: C0515503F
F. S. Collins #s.n. 02 August 1913
Ceramium tenuissimum var. pygmaeum (Kützing) Hauck
Bermuda, Cooper's Island

University of Michigan
Catalog #: 645937
F.S. Collins #s.n. 02 August 1913
Ceramium tenuissimum var. pygmaeum (Kützing) Hauck
Bermuda, Cooper's Island

University of Michigan
Catalog #: 645938
F.S. Collins #s.n. 02 August 1913
Ceramium tenuissimum var. pygmaeum (Kützing) Hauck
Bermuda, Cooper's Island

Michigan State University Algae
Catalog #: MSC0181657
F.S. Collins #s.n. 02 August 1913
Ceramium tenuissimum var. pygmaeum (Kützing) Hauck
Bermuda, Cooper's Island

Miami University - Algae
Catalog #: 000210227
F.S. Collins #s.n.
Ceramium tenuissium var. pygmaeum
Bermuda, Cooper's Island

Yale University Herbarium
Catalog #: YU.095464
Frank Shipley Collins s.n. 02 August 1913
Ceramium tenuissimum var. pygmaeum (Kützing) Hauck
Bermuda, Cooper's Island, Bermuda