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

Brown University - Algae
Catalog #: ABRU00004115
N. L. Gardner s.n. 17 June 1906
Pylaiella littoralis var. opposita Kjellman
United States, California, near Presidio, San Francisco, CA

Field Museum of Natural History
Catalog #: C0519763F
N. L. Gardner #s.n. 17 June 1906
Pylaiella littoralis var. opposita Kjellman
United States, California, San Francisco, Presidio

University of Michigan
Catalog #: 638308
N.L. Gardner #s.n. 17 June 1906
Pylaiella littoralis (Linnaeus) Kjellman
United States, California, San Francisco, near Presidio, San Francisco

University of Michigan
Catalog #: 638433
N.L. Gardner #s.n. 17 June 1906
Pylaiella littoralis (Linnaeus) Kjellman
United States, California, San Francisco, Near Presidio, San Francisco

Michigan State University Algae
Catalog #: MSC0184404
N.L. Gardner #s.n. 17 June 1906
Pylaiella littoralis (Linnaeus) Kjellman
United States, California, San Francisco, Near Presidio, San Francisco

Miami University - Algae
Catalog #: 000188455
N.L. Gardner #s.n. 17 June 1906
Pylaiella littoralis (Linnaeus) Kjellman
United States, California, San Francisco, Near Presidio, San Francisco

Yale University Herbarium
Catalog #: YU.094423
Nathaniel Lyon Gardner s.n. 17 June 1906
Pylaiella littoralis var. opposita Kjellman
United States, California, San Francisco; near Presidio, San Francisco, CA