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

Brown University - Algae
Catalog #: ABRU00004950
N. L. Gardner s.n.
Ceramium transversale F.S.Collins & Hervey
United States, California, Orange, Laguna, CA

Field Museum of Natural History
Catalog #: C0515457F
N. L. Gardner #s.n. 00 February 1913
Ceramium transversale F.S.Collins & Hervey
United States, California, Orange, Laguna

University of Michigan
Catalog #: 653577
N.L. Gardner #s.n. 00 February 1913
Gayliella transversalis (F.S.Collins & Hervey) T.O.Cho & Fredericq
United States, California, Orange, Laguna

Michigan State University Algae
Catalog #: MSC0181659
N.L. Gardner #s.n. 00 February 1913
Ceramium transversale F.S.Collins & Hervey
United States, California, Orange, Laguna

Miami University - Algae
Catalog #: 000210184
N.L. Gardner #s.n. 00 February 1913
Ceramium transversale F.S.Collins & Hervey
United States, California, Orange, Laguna

Yale University Herbarium
Catalog #: YU.095420
Nathaniel Lyon Gardner s.n.
Ceramium transversale F.S.Collins & Hervey
United States, California, Orange, Laguna, CA