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

Brown University - Algae
Catalog #: ABRU00004355
N. L. Gardner s.n.
Oscillatoria okenii C.Agardh
United States, California, Key Route Power House, Oakland, CA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0012506
N. L. Gardner #1605 00 July 1905
Kamptonema okenii (C.Agardh ex Gomont) Strunecký, Komárek & J.Smarda, 2014
United States, California, San Francisco, Oakland; Key Route power house

Michigan State University Algae
Catalog #: MSC0183143
N.L. Gardner #s.n. 00 July 1905
Kamptonema okenii (C.Agardh ex Gomont) Strunecký, Komárek & J.Smarda, 2014
United States, California, Alameda, Key Route Power House, Oakland

Miami University - Algae
Catalog #: 000189080
N.L. Gardner #s.n. 00 July 1905
Kamptonema okenii (C.Agardh ex Gomont) Strunecký, Komárek & J.Smarda, 2014
United States, California, Alameda, Key Route Power House, Oakland

Yale University Herbarium
Catalog #: YU.094662
Nathaniel Lyon Gardner s.n.
Oscillatoria okenii C.Agardh
United States, California, Oakland; Key Route Power House, Oakland, CA