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

University of Michigan
Catalog #: 736035
N.L. Gardner #s.n. 00 March 1916
Closterium pritchardianum W.Archer
United States, California, San Francisco, Golden Gate Park, San Francisco

Michigan State University Algae
Catalog #: MSC0182061
N.L. Gardner #s.n. 00 March 1916
Closterium pritchardianum W.Archer
United States, California, San Francisco, Golden Gate Park, San Francisco

Miami University - Algae
Catalog #: 000210146
N.L. Gardner #s.n. 00 March 1916
Closterium pritchardianum W.Archer
United States, California, San Francisco, Golden Gate Park, San Francisco