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

Field Museum of Natural History
Catalog #: C0501498F
W.A. Setchell #s.n. 08 January 1899
Gigartina spinosa Greville
United States, California, Monterey, Very common on rocks at extreme low water mark, Pyramid Point

University of Michigan
Catalog #: 647821
W.A. Setchell #s.n. 08 January 1899
Chondracanthus spinosus (Kützing) Guiry
United States, California, Monterey, Pyramid Point, Pacific Grove

University of Michigan
Catalog #: 647829
W.A. Setchell #s.n. 08 January 1899
Chondracanthus spinosus (Kützing) Guiry
United States, California, Monterey, Pyramid Point, Pacific Grove

Michigan State University Algae
Catalog #: MSC0181818
W.A. Setchell #s.n. 08 January 1899
Chondracanthus spinosus (Kützing) Guiry
United States, California, Monterey, Pyramid Point, Pacific Grove