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

Brown University - Algae
Catalog #: ABRU00004749
F. S. Collins s.n. 08 September 1912
Closterium intermedium Ralfs
United States, Massachusetts, Eastham, MA

University of Michigan
Catalog #: 735986
F.S. Collins #s.n. 08 September 1912
Closterium intermedium Ralfs
United States, Massachusetts, Barnstable, Eastham

University of Michigan
Catalog #: 735988
F.S. Collins #s.n. 08 September 1912
Closterium intermedium Ralfs
United States, Massachusetts, Barnstable, Eastham

Michigan State University Algae
Catalog #: MSC0182046
F.S. Collins #s.n. 08 September 1912
Closterium intermedium Ralfs
United States, Massachusetts, Barnstable, Eastham

Michigan State University Algae
Catalog #: MSC0182235
F.S. Collins #s.n. 08 September 1912
Cosmarium subcucumis Schmidle
United States, Massachusetts, Barnstable, Eastham

Miami University - Algae
Catalog #: 000196595
F.S. Collins #s.n.
Closterium intermedium Ralfs
United States, Massachusetts, Barnstable, Eastham

Miami University - Algae
Catalog #: 000196497
F.S. Collins #s.n. 24 April 1912
Cosmarium subcucumis Schmidle
Bermuda, Devonshire Marshes

Miami University - Algae
Catalog #: 000196596
F.S. Collins #s.n. 08 September 1912
Cosmarium subcucumis Schmidle
United States, Massachusetts, Barnstable, Eastham

Yale University Herbarium
Catalog #: YU.095217
Frank Shipley Collins s.n. 08 September 1912
Closterium intermedium Ralfs
United States, Massachusetts, Barnstable, Eastham; Eastham, MA