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

Brown University - Algae
Catalog #: ABRU00002649
W. A. Setchell s.n. 03 September 1892
Phormidium valderianum Gomont
United States, Rhode Island, Watch Hill Pond, Watch Hill, RI

Michigan State University Algae
Catalog #: MSC0183272
W.A. Setchell #s.n. 03 September 1892
Leptolyngbya valderiana (Gomont) Anagnostidis & Komárek
United States, Rhode Island, Washington, Watch Hill Pond, Watch Hill

Miami University - Algae
Catalog #: 000186452
W.A. Setchell #s.n. 03 September 1892
Phormidium valderianum Gomont
United States, Rhode Island, Washington, Watch Hill Pond, Watch Hill

Yale University Herbarium
Catalog #: YU.091183
William Albert Setchell s.n. 03 September 1892
Phormidium valderianum Gomont
United States, Rhode Island, Watch Hill Pond, Watch Hill, RI