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

Brown University - Algae
Catalog #: ABRU00005110
N. L. Gardner s.n.
Myelophycus intestinalis De A.Saunders
United States, California, Fort Point, San Francisco, CA

Field Museum of Natural History
Catalog #: C0517888F
N. L. Gardner #s.n. 00 April 1914
Myelophycus intestinalis f. tenuis Setchell & N.L.Gardner
United States, California, San Francisco, Fort Point

University of Michigan
Catalog #: 636563
N.L. Gardner #s.n. 00 April 1914
Melanosiphon intestinalis (De A.Saunders) M.J.Wynne
United States, California, San Francisco, Fort Point, San Francisco

University of Michigan
Catalog #: 636612
N.L. Gardner #s.n. 00 April 1914
Myelophycus intestinalis De A.Saunders
United States, California, San Francisco, Fort Point, San Francisco

Michigan State University Algae
Catalog #: MSC0183407
N.L. Gardner #s.n. 00 April 1914
Melanosiphon intestinalis (De A.Saunders) M.J.Wynne
United States, California, San Francisco, Fort Point, San Francisco

Miami University - Algae
Catalog #: 000210329
N.L. Gardner #s.n. 00 April 1914
Melanosiphon intestinalis (De A.Saunders) M.J.Wynne
United States, California, San Francisco, Fort Point, San Francisco

Yale University Herbarium
Catalog #: YU.095578
Nathaniel Lyon Gardner s.n.
Myelophycus intestinalis De A.Saunders
United States, California, San Francisco; Fort Point, San Francisco, CA