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

Brown University - Algae
Catalog #: ABRU00003572
Mrs. W. C. Simmons s.n.
Rhodomela subfusca var. gracilis
United States, Rhode Island, Jamestown; Conanicut, RI

Yale University Herbarium
Catalog #: YU.091973
Mrs. W. C. Simmons s.n. 00 April 1899
Rhodomela subfusca f. gracilis (Kützing) Areschoug
United States, Rhode Island, Newport, Jamestown; Conanicut, RI

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0017291
Mrs. W. C. Simmons #890 00 April 1899
Rhodomela confervoides (Hudson) P.C.Silva
United States, Rhode Island, Newport, Conanicut

University of Michigan
Catalog #: 670962
Mrs. W.C. Simmons #s.n. 00 April 1899
Rhodomela confervoides (Hudson) P.C.Silva
United States, Rhode Island, Newport, Conanicut Island

University of Michigan
Catalog #: 671074
Mrs. W.C. Simmons #s.n. 00 April 1899
Rhodomela subfusca (Woodward) C.Agardh
United States, Rhode Island, Newport, Conanicut Island

Michigan State University Algae
Catalog #: MSC0184464
Mrs. W.C. Simmons #s.n. 00 April 1899
Rhodomela confervoides (Hudson) P.C.Silva
United States, Rhode Island, Newport, Conanicut Island

Miami University - Algae
Catalog #: 000187527
W.C. Simmons #s.n. 00 April 1899
Rhodomela subfusca var. gracilis
United States, Rhode Island, Newport, Conanicut Island