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

Brown University - Algae
Catalog #: ABRU00004997
F. S. Collins s.n.
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor, Bermuda

Field Museum of Natural History
Catalog #: C0515472F
F. S. Collins #s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor

University of Michigan
Catalog #: 646030
F.S. Collins #s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor

University of Michigan
Catalog #: 646033
F.S. Collins #s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor

Michigan State University Algae
Catalog #: MSC0181616
F.S. Collins #s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor

Miami University - Algae
Catalog #: 000210226
F.S. Collins #s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor

Yale University Herbarium
Catalog #: YU.095463
Frank Shipley Collins s.n. 00 November 1915
Ceramium cruciatum F.S.Collins & Hervey
Bermuda, Hamilton Harbor, Bermuda