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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0005955
Anonymous #P.B.-A. CXXIII
Chondracanthus spinosus (Kutzing) Guiry
, [no locality data]

Field Museum of Natural History
Catalog #: C0501499F
N. L. Gardner s.n. 00 December 1908
Gigartina spinosa var. pinnata Setchell
United States, California, Los Angeles, San Pedro

University of Michigan
Catalog #: 647830
N.L. Gardner #s.n. 00 December 1908
Chondracanthus spinosus (Kützing) Guiry
United States, California, Los Angeles, San Pedro

University of Michigan
Catalog #: 647837
N.L. Gardner #s.n. 00 December 1908
Chondracanthus spinosus (Kützing) Guiry
United States, California, Los Angeles, San Pedro

Michigan State University Algae
Catalog #: MSC0181819
N.L. Gardner #s.n. 00 December 1908
Chondracanthus spinosus (Kützing) Guiry
United States, California, Los Angeles, San Pedro

Miami University - Algae
Catalog #: 000210747
N.L. Gardner #s.n. 00 December 1908
Chondracanthus spinosus (Kützing) Guiry
United States, California, Los Angeles, San Pedro

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021198
Unknown #s.n.
Gigartina spinosa var. pinnata Setchell

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021199
W. A. Setchell #CXXIII 00 December 1908
Gigartina spinosa var. pinnata Setchell
United States, California, Los Angeles, San Pedro