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

Brown University - Algae
Catalog #: ABRU00002662
I. Holden s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Bridgeport, CT

Miami University - Algae
Catalog #: 000186464
I. Holden #s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Fairfield, Bridgeport

Yale University Herbarium
Catalog #: YU.091195
Isaac Holden s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 732959
Isaac Holden #s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Fairfield, Bridgeport

University of Michigan
Catalog #: 732962
Isaac Holden #s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0185100
Isaac Holden #s.n. 07 May 1893
Ulothrix implexa (Kützing) Kützing
United States, Connecticut, Fairfield, Bridgeport