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

Brown University - Algae
Catalog #: ABRU00004935
F. S. Collins s.n.
Chaetonema irregulare Nowakowski
United States, Massachusetts, Pocasset, Bourne, MA

University of Michigan
Catalog #: 683587
F.S. Collins #s.n. 00 August 1914
Chaetonema irregulare Nowakowski
United States, Massachusetts, Barnstable, Pocasset, Bourne

Michigan State University Algae
Catalog #: MSC0181685
F.S. Collins #s.n. 00 August 1914
Chaetonema irregulare Nowakowski
United States, Massachusetts, Barnstable, Pocasset, Bourne

Miami University - Algae
Catalog #: 000210171
F.S. Collins #s.n. 00 August 1914
Chaetonema irregulare Nowakowski
United States, Massachusetts, Barnstable, Pocasset, Bourne

Yale University Herbarium
Catalog #: YU.095405
Frank Shipley Collins s.n.
Chaetonema irregulare Nowakowski
United States, Massachusetts, Bourne; Pocasset, Bourne, MA