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

Brown University - Algae
Catalog #: ABRU00003873
N. L. Gardner s.n.
Oscillatoria proboscidea Gomont
United States, California, North Berkeley, CA

Michigan State University Algae
Catalog #: MSC0183875
N.L. Gardner #s.n. 00 March 1901
Oscillatoria proboscidea Gomont
United States, California, Alameda, Berkeley

Miami University - Algae
Catalog #: 000188153
N.L. Gardner #s.n. 00 March 1901
Oscillatoria proboscidea Gomont
United States, California, Alameda, Berkeley

Yale University Herbarium
Catalog #: YU.092242
Nathaniel Lyon Gardner s.n.
Oscillatoria proboscidea Gomont
United States, California, Alameda, North Berkeley, CA; North Berkeley, CA