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

Brown University - Algae
Catalog #: ABRU00004481
N. L. Gardner s.n. 14 July 1906
Scytonema guyanense Bornet & Flahault
United States, California, Marin, Mount Tamalpais, CA

Michigan State University Algae
Catalog #: MSC0184645
N.L. Gardner #s.n. 14 July 1906
Scytonema guyanense Bornet & Flahault
United States, California, Marin, Mount Tamalpais

Miami University - Algae
Catalog #: 000210562
N.L. Gardner #s.n.
Scytonema guyanense Bornet & Flahault
United States, California, Marin, Mount Tamalpais

Yale University Herbarium
Catalog #: YU.094952
Nathaniel Lyon Gardner s.n. 14 July 1906
Scytonema guyanense Bornet & Flahault
United States, California, Marin, Mount Tamalpais, CA