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

Brown University - Algae
Catalog #: ABRU00005060
N. L. Gardner s.n.
Nitophyllum violaceum J.Agardh
United States, California, White's Point, west of San Pedro, CA

University of Michigan
Catalog #: 649731
N.L. Gardner #s.n. 11 June 1911
Cryptopleura peltata (Montagne) M.J.Wynne
United States, California, Los Angeles, White's Point, west of San Pedro

University of Michigan
Catalog #: 649733
N.L. Gardner #s.n. 11 June 1911
Cryptopleura peltata (Montagne) M.J.Wynne
United States, California, Los Angeles, White's Point, west of San Pedro

Miami University - Algae
Catalog #: 000210280
N.L. Gardner #s.n. 11 June 2015
Nitophyllum violaceum J.Agardh
United States, California, Los Angeles, White's Point, west of San Pedro

Yale University Herbarium
Catalog #: YU.095526
Nathaniel Lyon Gardner s.n.
Nitophyllum violaceum J.Agardh
United States, California, White's Point, west of San Pedro, CA