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

University Herbarium, University of California, Berkeley
Catalog #: UC687672
F. S. Collins #s.n. 00 May 1892
Ulothrix subtilis Kützing
United States, Massachusetts, Middlesex, Medford