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

Field Museum of Natural History
Catalog #: C0519757F
F.S. Collins #s.n. 00 December 1899
Pylaiella littoralis var. firma (C.Agardh) Kjellman
United States, Rhode Island, Newport, Portsmouth

Brown University - Algae
Catalog #: ABRU00003388
Mrs. W. C. Simmons s.n.
Pylaiella littoralis var. firma (C.Agardh) Kjellman
United States, Rhode Island, Portsmouth, RI

Yale University Herbarium
Catalog #: YU.091816
Mrs. W. C. Simmons s.n. 00 December 1899
Pylaiella littoralis var. firma (C.Agardh) Kjellman
United States, Rhode Island, Portsmouth; Portsmouth, RI

University of Michigan
Catalog #: 638434
Mrs. W.C. Simmons #s.n. 00 December 1899
Pylaiella littoralis (Linnaeus) Kjellman
United States, Rhode Island, Newport, Portsmouth

University of Michigan
Catalog #: 638450
Mrs. W.C. Simmons #s.n. 00 December 1899
Pylaiella littoralis var. firma (C.Agardh) Kjellman
United States, Rhode Island, Newport, Portsmouth

Michigan State University Algae
Catalog #: MSC0184403
Mrs. W.C. Simmons #s.n. 00 December 1899
Pylaiella littoralis (Linnaeus) Kjellman
United States, Rhode Island, Newport, Portsmouth

Miami University - Algae
Catalog #: 000187336
W.C. Simmons #s.n. 00 December 1899
Pylaiella littoralis var. firma (C.Agardh) Kjellman
United States, Rhode Island, Newport, Portsmouth