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

Brown University - Algae
Catalog #: ABRU00003137
G. R. Crocker s.n. 22 February 1898
Enteromorpha acanthophora Kützing
United States, California, Alameda Creek, CA

Yale University Herbarium
Catalog #: YU.106517
G. R. Crocker s.n. 22 February 1898
Enteromorpha acanthophora Kützing
United States, California, Alameda Creek, CA

University of Michigan
Catalog #: 733159
G.R. Crocker #s.n. 22 February 1898
Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C.Silva, Stanhope & J.R.Waaland
United States, California, Alameda, Alameda Creek

University of Michigan
Catalog #: 733163
G.R. Crocker #s.n. 22 February 1898
Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C.Silva, Stanhope & J.R.Waaland
United States, California, Alameda, Alameda Creek

Michigan State University Algae
Catalog #: MSC0185143
G.R. Crocker #s.n. 22 February 1898
Ulva acanthophora (Kützing) Hayden, Blomster, Maggs, P.C.Silva, Stanhope & J.R.Waaland
United States, California, Alameda, Alameda Creek

Miami University - Algae
Catalog #: 000186923
G.R. Crocker #s.n. 22 February 1898
Enteromorpha acanthophora Kützing
United States, California, Alameda, Alameda Creek