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

Brown University - Algae
Catalog #: ABRU00005063
F. S. Collins s.n. 03 September 1916
Ceramium rubrum var. corymbiferum (Bonnemaison) J.Agardh
United States, Massachusetts, Salt Pond, Eastham, MA

University Herbarium, University of California, Berkeley
Catalog #: UC1843130
F. S. Collins #s.n. 03 September 1916
Ceramium rubrum C.Agardh
United States, Massachusetts, Barnstable, Salt Pond, Eastham.

University of Michigan
Catalog #: 646962
F.S. Collins #s.n. 03 September 1916
Ceramium virgatum Roth
United States, Massachusetts, Barnstable, Salt Pond, Eastham

University of Michigan
Catalog #: 646981
F.S. Collins #s.n. 03 September 1916
Ceramium virgatum Roth
United States, Massachusetts, Barnstable, Salt Pond, Eastham

Field Museum of Natural History
Catalog #: C0515285F
F.S. Collins #s.n. 03 September 1916
Ceramium rubrum var. corymbiferum (Bonnemaison) J.Agardh
United States, Massachusetts, Barnstable, Salt Pond, Eastham

Michigan State University Algae
Catalog #: MSC0181636
F.S. Collins #s.n. 03 September 1916
Ceramium rubrum var. corymbiferum (Bonnemaison) J.Agardh
United States, Massachusetts, Barnstable, Salt Pond, Eastham

Miami University - Algae
Catalog #: 000210283
F.S. Collins #s.n.
Ceramium rubrum var. corymbiferum (Bonnemaison) J.Agardh
United States, Massachusetts, Barnstable, Salt Pond, Eastham

Yale University Herbarium
Catalog #: YU.095529
Frank Shipley Collins s.n. 03 September 1916
Ceramium rubrum var. corymbiferum (Bonnemaison) J.Agardh
United States, Massachusetts, Barnstable, Eastham; Salt Pond, Eastham, MA