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

Brown University - Algae
Catalog #: ABRU00003493
R. E. Gibbs s.n.
Cladophora scopiformis (Ruprecht) Collins, Holden, & Setchell
United States, California, Presidio, San Francisco, CA

Yale University Herbarium
Catalog #: YU.091902
R. E. Gibbs s.n. 00 May 1899
Cladophora scopiformis (Ruprecht) Collins, Holden, & Setchell
United States, California, San Francisco; Presidio, San Francisco, CA

Field Museum of Natural History
Catalog #: C0532067F
R. E. Gibbs #s.n. 00 May 1899
Spongomorpha cartilaginea Ruprecht
United States, California, San Francisco, Presidio, San Francisco, California

University of Michigan
Catalog #: 678013
R.E. Gibbs #s.n. 00 May 1899
Acrosiphonia coalita (Ruprecht) Scagel, Garbary, Golden & M.W.Hawkes
United States, California, San Francisco, Presidio, San Francisco

University of Michigan
Catalog #: 678014
R.E. Gibbs #s.n. 00 May 1899
Acrosiphonia coalita (Ruprecht) Scagel, Garbary, Golden & M.W.Hawkes
United States, California, San Francisco, Presidio, San Francisco

Michigan State University Algae
Catalog #: MSC0181037
R.E. Gibbs #s.n. 00 May 1899
Acrosiphonia J.Agardh, 1846
United States, California, San Francisco, Presidio, San Francisco

Miami University - Algae
Catalog #: 000187452
R.E. Gibbs #s.n. 00 May 1899
Cladophora scopaeformis
United States, California, San Francisco, Presidio, San Francisco