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

Brown University - Algae
Catalog #: ABRU00004195
G. V. N. Dearborn s.n. 02 March 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Physiological Laboratory of Tufts College Medical and Dental School, Boston, MA

Yale University Herbarium
Catalog #: YU.094502
G. V. N. Dearborn s.n. 02 March 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Physiological Laboratory of Tufts College Medical and Dental School, Boston, MA

University of Michigan
Catalog #: 735975
G.V.N. Dearborn #s.n. 02 May 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Suffolk, Physiological Laboratory of Tufts College Medical and Dental School, Boston

University of Michigan
Catalog #: 735981
G.V.N. Dearborn #s.n. 02 May 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Suffolk, Physiological Laboratory of Tufts College Medical and Dental School, Boston

Michigan State University Algae
Catalog #: MSC0182042
G.V.N. Dearborn #s.n. 02 May 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Suffolk, Physiological Laboratory of Tufts College Medical and Dental School, Boston

Miami University - Algae
Catalog #: 000188530
G.V.N. Dearborn #s.n. 02 May 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Suffolk, Physiological Laboratory of Tufts College Medical and Dental School, Boston

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00142590
602d2b22-7ff3-4503-b738-227b490e28e6
G.V.N. Dearborn #s.n. 02 May 1907
Closterium ehrenbergii Meneghini ex Ralfs
United States, Massachusetts, Suffolk, Physiological Laboratory of Tufts College Medical and Dental School, Boston