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

University Herbarium, University of California, Berkeley
Catalog #: UC763901
Frank S. Collins #s.n. 13 March 1889
Ulothrix isogona (J.E.Smith) Thuret
United States, Massachusetts, Essex, Nahant

Brown University - Algae
Catalog #: ABRU00003040
W. A. Setchell s.n.
Ahnfeltia concinna J.Agardh
United States, California, Land's End, San Francisco, CA

University Herbarium, University of California, Berkeley
Catalog #: UC1835770
W. A. Setchell #430 00 February 1896
Ahnfeltiopsis concinna (J.Agardh) P.C.Silva & DeCew
United States, California, San Francisco, Land's End

Field Museum of Natural History
Catalog #: C0501160F
W. A. Setchell #s.n. 00 February 1896
Ahnfeltia concinna J.Agardh
United States, California, Land's End, San Francisco, CA

University of Michigan
Catalog #: 641573
W.A. Setchell #s.n. 00 February 1896
Ahnfeltiopsis durvillei (Bory de Saint-Vincent) P.C.Silva & DeCew
United States, California, San Francisco, Land's End, San Francisco

University of Michigan
Catalog #: 641574
W.A. Setchell #s.n. 00 February 1896
Ahnfeltiopsis durvillei (Bory de Saint-Vincent) P.C.Silva & DeCew
United States, California, San Francisco, Land's End, San Francisco

Michigan State University Algae
Catalog #: MSC0181122
W.A. Setchell #s.n. 00 February 1896
Ahnfeltiopsis gigartinoides (J.Agardh) P.C.Silva & DeCew
United States, California, San Francisco, Land's End, San Francisco

Miami University - Algae
Catalog #: 000186844
W.A. Setchell #s.n. 00 February 1896
Ahnfeltia concinna J.Agardh
United States, California, San Francisco, Land's End, San Francisco

Yale University Herbarium
Catalog #: YU.091512
William Albert Setchell s.n. 00 February 1896
Ahnfeltia concinna J.Agardh
United States, California, Land's End, San Francisco, CA