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

Brown University - Algae
Catalog #: ABRU00002912
F. S. Collins s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Hancock, Brooksville; Cape Rosier, ME

University Herbarium, University of California, Berkeley
Catalog #: UC1835473
F. S. Collins #11390 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Hancock, Cape Rosier

University of Michigan
Catalog #: 638527
F.S. Collins #s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Cape Rosier

University of Michigan
Catalog #: 638533
F.S. Collins #s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Cape Rosier

Michigan State University Algae
Catalog #: MSC0184421
F.S. Collins #s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Hancock, Cape Rosier

Miami University - Algae
Catalog #: 000210390
F.S. Collins #s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Cape Rosier

Yale University Herbarium
Catalog #: YU.091407
Frank Shipley Collins s.n. 17 July 1897
Ralfsia verrucosa (Areschoug) ??Areschoug
United States, Maine, Hancock, Brooksville; Cape Rosier, ME