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

Brown University - Algae
Catalog #: ABRU00004504
N. L. Gardner s.n.
Spongomorpha arcta var. limitanea F.S.Collins
United States, California, Fort Point, San Francisco, CA

Field Museum of Natural History
Catalog #: C0172764F
N. L. Gardner #s.n. 00 February 1910
Cladophora arcta (Dillwyn) Kützing
United States, California, San Francisco, Fort Point

University of Michigan
Catalog #: 732091
N.L. Gardner #s.n. 00 February 1910
Spongomorpha mertensii (Yendo) Setchell & N.L.Gardner
United States, California, San Francisco, Fort Point, San Francisco

University of Michigan
Catalog #: 732092
N.L. Gardner #s.n. 00 February 1910
Spongomorpha mertensii (Yendo) Setchell & N.L.Gardner
United States, California, San Francisco, Fort Point, San Francisco

Michigan State University Algae
Catalog #: MSC0181057
N.L. Gardner #s.n. 00 February 1910
Acrosiphonia mertensii Yendo
United States, California, San Francisco, Fort Point

Miami University - Algae
Catalog #: 000210585
N.L. Gardner #s.n. 00 February 1910
Acrosiphonia mertensii Yendo
United States, California, San Francisco, Fort Point

Yale University Herbarium
Catalog #: YU.094975
Nathaniel Lyon Gardner s.n.
Spongomorpha arcta (Dillwyn) Kützing
United States, California, San Francisco; Fort Point, San Francisco, CA