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

Brown University - Algae
Catalog #: ABRU00004519
N. L. Gardner s.n.
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, below Canoe Island, WA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021130
N. L. Gardner #1748 00 July 1910
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, Canoe Island

Field Museum of Natural History
Catalog #: C0513341F
N. L. Gardner #s.n. 00 July 1910
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, below Canoe Island

University of Michigan
Catalog #: 649596
N.L. Gardner #s.n. 00 July 1910
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, Canoe Island

University of Michigan
Catalog #: 649606
N.L. Gardner #s.n. 00 July 1910
Cryptonemia borealis Kylin
United States, Washington, San Juan, Canoe Island

Michigan State University Algae
Catalog #: MSC0182256
N.L. Gardner #s.n. 00 July 1910
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, Canoe Island

Miami University - Algae
Catalog #: 000210599
N.L. Gardner #s.n. 00 July 1910
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, Canoe Island

Yale University Herbarium
Catalog #: YU.094990
Nathaniel Lyon Gardner s.n.
Cryptonemia obovata J.Agardh
United States, Washington, San Juan, below Canoe Island, WA