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

Brown University - Algae
Catalog #: ABRU00002946
W. J. V. Osterhout s.n.
Phormidium subfuscum var. joannianum Kützing ex Gomont
United States, Rhode Island, Moshassuck River, near Woodlawn, RI

Michigan State University Algae
Catalog #: MSC0183335
W.J.V. Osterhout #s.n. 00 April 1894
Lyngbya joanniana (Kützing) Hansgirg
United States, Rhode Island, Providence, Moshassuck River, near Woodlawn

Miami University - Algae
Catalog #: 000186763
W.J.V. Osterhout #s.n. 00 April 1894
Phormidium subfuscum var. joannianum Kützing ex Gomont
United States, Rhode Island, Providence, Moshassuck River, near Woodlawn

Yale University Herbarium
Catalog #: YU.091434
Winthrop John Vanleuven Osterhout s.n. 00 April 1894
Phormidium subfuscum var. joannianum Kützing ex Gomont
United States, Rhode Island, Moshassuck River, near Woodlawn, RI