Collins, N. Amer. Algae
Collins, F.S. [? - ?]

Butler University
Catalog #: 503816
Mrs. W. C. Simmons #s.n.
Polysiphonia violacea (Roth) Sprengel
United States, Rhode Island, Newport

Butler University
Catalog #: 503823
Mrs. W. C. Simmons #s.n.
Polysiphonia violacea (Roth) Sprengel
United States, Rhode Island, Newport

University Herbarium, University of California, Berkeley
Catalog #: UC687513
W. C. Simmons #s.n.
Polysiphonia fucoides (Hudson) Greville
United States, Rhode Island, Newport, R. I.