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

Brown University - Algae
Catalog #: ABRU00002994
C. P. Nott s.n. 19 May 1897
Ceratothamnion pikeanum (Harvey) J.Agardh
United States, California, Pyramid Point, Pacific Grove, CA

Field Museum of Natural History
Catalog #: C0515745F
C. P. Nott #s.n. 19 May 1897
Callithamnion pikeanum Harvey
United States, California, Monterey, Pyramid Point, Pacific Grove

University of Michigan
Catalog #: 644532
C.P. Nott #s.n. 19 May 1897
Callithamnion pikeanum Harvey
United States, California, Monterey, Pyramid Point, Pacific Grove

University of Michigan
Catalog #: 644537
C.P. Nott #s.n. 19 May 1897
Callithamnion pikeanum Harvey
United States, California, Monterey, Pyramid Point, Pacific Grove

Michigan State University Algae
Catalog #: MSC0181471
C.P. Nott #s.n. 19 May 1897
Callithamnion pikeanum Harvey
United States, California, Monterey, Pyramid Point, Pacific Grove

Miami University - Algae
Catalog #: 000186803
C.P. Nott #s.n. 19 May 1897
Ceratothamnion pikeanum (Harvey) J.Agardh
United States, California, Monterey, Pyramid Point, Pacific Grove

Yale University Herbarium
Catalog #: YU.091472
Charles Palmer Nott s.n. 19 May 1897
Ceratothamnion pikeanum (Harvey) J.Agardh
United States, California, Monterey, Pacific Grove; Pyramid Point, Pacific Grove, CA