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

Brown University - Algae
Catalog #: ABRU00004251
F. S. Collins s.n. 17 June 1907
Closterium parvulum Nägeli
United States, Massachusetts, Eastham, MA

University of Michigan
Catalog #: 736029
F.S. Collins #s.n. 17 June 1907
Closterium parvulum Nägeli
United States, Massachusetts, Barnstable, Eastham

University of Michigan
Catalog #: 736030
F.S. Collins #s.n. 17 June 1907
Closterium parvulum Nägeli
United States, Massachusetts, Barnstable, Eastham

Michigan State University Algae
Catalog #: MSC0182059
F.S. Collins #s.n. 17 June 1907
Closterium parvulum Nägeli
United States, Massachusetts, Barnstable, Eastham

Miami University - Algae
Catalog #: 000188640
F.S. Collins #s.n.
Closterium parvulum Nägeli
United States, Massachusetts, Barnstable, Eastham

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00142646
0ccbb5be-b51e-48af-a4b0-5522b438722a
F.S. Collins #s.n. 17 June 1907
Closterium parvulum N
United States, Massachusetts, Barnstable, Eastham

Yale University Herbarium
Catalog #: YU.094558
Frank Shipley Collins s.n. 17 June 1907
Closterium parvulum Nägeli
United States, Massachusetts, Barnstable, Eastham; Eastham, MA