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

Brown University - Algae
Catalog #: ABRU00003254
F. S. Collins s.n. 18 June 1892
Ulothrix subtilis Kützing
United States, Massachusetts, Medford, MA

University of Michigan
Catalog #: 732985
F.S. Collins #s.n. 18 June 1892
Ulothrix subtilis Kützing
United States, Massachusetts, Middlesex, Medford

University of Michigan
Catalog #: 732994
F.S. Collins #s.n. 18 June 1892
Ulothrix subtilis Kützing
United States, Massachusetts, Middlesex, Medford

Michigan State University Algae
Catalog #: MSC0183154
F.S. Collins #s.n. 18 June 1892
Klebsormidium subtile (Kützing) Tracanna ex Tell
United States, Massachusetts, Middlesex, Medford

Miami University - Algae
Catalog #: 000187156
F.S. Collins #s.n. 22 August 1899
Ulothrix subtilis Kützing
United States, Massachusetts, Middlesex, Medford

Yale University Herbarium
Catalog #: YU.091697
Frank Shipley Collins s.n. 18 June 1892
Ulothrix subtilis Kützing
United States, Massachusetts, Middlesex, Medford; Medford, MA