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

Brown University - Algae
Catalog #: ABRU00003983
I. Holden s.n. 11 May 1890
Desmidium cylindricum Greville
United States, Connecticut, Stillman's Pond, Bridgeport, CT

Yale University Herbarium
Catalog #: YU.094288
Isaac Holden s.n. 11 May 1890
Desmidium cylindricum Greville
United States, Connecticut, Stillman's Pond, Bridgeport, CT

University of Michigan
Catalog #: 736228
Isaac Holden #s.n. 11 May 1890
Desmidium cylindricum Greville
United States, Connecticut, Fairfield, Stillmans Pond, Bridgeport

University of Michigan
Catalog #: 736229
Isaac Holden #s.n. 11 May 1890
Desmidium cylindricum Greville
United States, Connecticut, Fairfield, Stillmans Pond, Bridgeport

Michigan State University Algae
Catalog #: MSC0182379
Isaac Holden #s.n. 11 May 1890
Desmidium grevillei (Kützing ex Ralfs) De Bary
United States, Connecticut, Fairfield, Stilllman's Pond, Bridgeport

Miami University - Algae
Catalog #: 000188258
Isaac Holden #s.n. 11 May 1890
Desmidium grevillei (Kützing ex Ralfs) De Bary
United States, Connecticut, Fairfield, Stilllman's Pond, Bridgeport

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00142705
7455670f-8755-4608-a9cd-f972b2bf54cc
Isaac Holden #s.n. 11 May 1890
Didymoprium K
United States, Connecticut, Stillman's Pond, Bridgeport