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

Brown University - Algae
Catalog #: ABRU00004045
N. L. Gardner s.n.
Scenedesmus obliquus (Turpin) Kützing
United States, California, Botanical Laboratory of the University of California, Berkeley, CA

University of Michigan
Catalog #: 731937
N.L. Gardner #s.n. 00 May 1906
Scenedesmus obliquus (Turpin) Kützing
United States, California, Alameda, University of California, Berkeley

University of Michigan
Catalog #: 731943
N.L. Gardner #s.n. 00 May 1906
Scenedesmus obliquus (Turpin) Kützing
United States, California, Alameda, Botanical Laboratory, University of California, Berkeley

Michigan State University Algae
Catalog #: MSC0181077
N.L. Gardner #s.n. 00 May 1906
Acutodesmus obliquus (Turpin) Hegewald & Hanagata
United States, California, Alameda, University of California, Berkeley

Miami University - Algae
Catalog #: 000188322
N.L. Gardner #s.n. 00 May 1906
Acutodesmus obliquus (Turpin) Hegewald & Hanagata
United States, California, Alameda, University of California, Berkeley

Yale University Herbarium
Catalog #: YU.094353
Nathaniel Lyon Gardner s.n.
Scenedesmus obliquus (Turpin) Kützing
United States, California, Berkeley; Botanical Laboratory, University of California, Berkeley, CA