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

Brown University - Algae
Catalog #: ABRU00005074
N. L. Gardner s.n.
Arthrospira maxima Setchell & N.L.Gardner
United States, California, Key Route Power House, Oakland, CA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0012275
N.L. Gardner s.n. 00 July 1916
Arthrospira maxima Setchell & N.L.Gardner
United States, California, Alameda, Oakland, Key Route Power House

Michigan State University Algae
Catalog #: MSC0181271
N.L. Gardner #s.n. 00 July 1916
Arthrospira maxima Setchell & N.L.Gardner
United States, California, Alameda, Key Route Power House, Oakland

Miami University - Algae
Catalog #: 000210293
N.L. Gardner #s.n. 00 July 1916
Arthrospira maxima Setchell & N.L.Gardner
United States, California, Alameda, Key Route Power House, Oakland

Yale University Herbarium
Catalog #: YU.095540
Nathaniel Lyon Gardner s.n.
Arthrospira maxima Setchell & N.L.Gardner
United States, California, Oakland; Key Route Power House, Oakland, CA