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

Brown University - Algae
Catalog #: ABRU00003314
F. S. Collins s.n. 27 March 1898
Trentepohlia umbrina var. quercina
United States, Massachusetts, Saugus, MA

University of Michigan
Catalog #: 732433
F.S. Collins #s.n. 27 May 1898
Trentepohlia umbrina var. quercina
United States, Massachusetts, Essex, Saugus

University of Michigan
Catalog #: 732435
F.S. Collins #s.n. 27 May 1898
Trentepohlia umbrina var. quercina
United States, Massachusetts, Essex, Saugus

Michigan State University Algae
Catalog #: MSC0185063
F.S. Collins #s.n. 27 March 1898
Trentepohlia umbrina var. quercina
United States, Massachusetts, Essex, Saugus

Miami University - Algae
Catalog #: 000187265
F.S. Collins #s.n. 27 May 1898
Trentepholia umbrina var. quercina
United States, Massachusetts, Essex, Saugus

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00212178
32090b7a-2788-48d9-8e65-ae2bf4a4d7f0
F.S. Collins #s.n. 27 May 1898
Trentepohlia umbrina var. quercina
United States, Massachusetts, Essex, Saugus

Yale University Herbarium
Catalog #: YU.091745
Frank Shipley Collins s.n. 27 March 1898
Trentepohlia umbrina (Kützing) Bornet
United States, Massachusetts, Saugus, MA