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

Brown University - Algae
Catalog #: ABRU00004485
N. L. Gardner s.n. 15 March 1906
Calothrix kawraiskyi Schmidle
United States, California, Physical Laboratory of the University of California, Berkeley, CA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021455
N.L Gardner s.n. 15 March 1906
Calothrix kawraiskyi Schmidle
United States, California, Physical Laboratory of the University of California, Berkeley

Michigan State University Algae
Catalog #: MSC0181518
N.L. Gardner #s.n. 15 March 1906
Calothrix kawraiskyi Schmidle
United States, California, Alameda, Physical Laboratory, University of California, Berkeley

Miami University - Algae
Catalog #: 000210567
N.L. Gardner #s.n. 15 March 1906
Calothrix kawraiskyi Schmidle
United States, California, Alameda, Physical Laboratory, University of California, Berkeley

Yale University Herbarium
Catalog #: YU.094956
Nathaniel Lyon Gardner s.n. 15 March 1906
Calothrix kawraiskyi Schmidle
United States, California, Berkeley; Physiological Laboratory of the University of California, Berkeley, CA