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

Field Museum of Natural History
Catalog #: C0514596F
F.S. Collins #s.n.
Callithamnion rupinicola C.L.Anderson
United States, California, Los Angeles, San Pedro

Brown University - Algae
Catalog #: ABRU00004569
N. L. Gardner s.n.
Callithamnion rupinicola C.L.Anderson
United States, California, San Pedro, CA

University of Michigan
Catalog #: 644382
N.L. Gardner #s.n.
Callithamnion rupicola f. pygmaeum Collins, 1911
United States, California, Los Angeles, San Pedro

University of Michigan
Catalog #: 644394
N.L. Gardner #s.n.
Callithamnion rupicola f. pygmaeum Collins, 1911
United States, California, Los Angeles, San Pedro

Michigan State University Algae
Catalog #: MSC0181474
N.L. Gardner #s.n.
Callithamnion rupicola f. pygmaeum Collins, 1911
United States, California, Los Angeles, San Pedro

Miami University - Algae
Catalog #: 000189172
N.L. Gardner #s.n. 22 August 2015
Callithamnion rupicola f. pygmaeum Collins, 1911
United States, California, Los Angeles, San Pedro

Yale University Herbarium
Catalog #: YU.095040
Nathaniel Lyon Gardner s.n.
Callithamnion rupinicola C.L.Anderson
United States, California, San Pedro, CA