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

Brown University - Algae
Catalog #: ABRU00002834
W. G. Farlow s.n.
Nostoc microscopicum Carmichael ex Bornet & Flahault
United States, Vermont, Ripton Gorge, VT

Michigan State University Algae
Catalog #: MSC0183707
W.G. Farlow #s.n. 00 September 1896
Nostoc microscopicum Carmichael ex Bornet & Flahault
United States, Vermont, Addison, Ripton Gorge

Miami University - Algae
Catalog #: 000186661
W.G. Farlow #s.n. 00 September 1896
Nostoc microscopicum Carmichael ex Bornet & Flahault
United States, Vermont, Addison, Ripton Gorge

Yale University Herbarium
Catalog #: YU.091336
William Gilson Farlow s.n. 00 September 1896
Nostoc microscopicum Carmichael ex Bornet & Flahault
United States, Vermont, Ripton Gorge, VT