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

Brown University - Algae
Catalog #: ABRU00002803
I. Holden s.n.
Batrachospermum boryanum Sirodot
United States, Connecticut, Bridgeport and Stratford, CT

Yale University Herbarium
Catalog #: YU.091267
Isaac Holden s.n.
Batrachospermum boryanum Sirodot
United States, Connecticut, Bridgeport and Stratford, CT

University Herbarium, University of California, Berkeley
Catalog #: UC1836671
Isaac Holden #187a 22 March 1891
Batrachospermum boryanum Sirodot
United States, Connecticut, Fairfield, Bridgeport and Stratford

University of Michigan
Catalog #: 642768
Isaac Holden #s.n.
Batrachospermum boryanum Sirodot
United States, Connecticut, In running brooks, Bridgeport and Stratford

University of Michigan
Catalog #: 642789
Isaac Holden #s.n.
Batrachospermum boryanum Sirodot
United States, Connecticut, Bridgeport and Stratford

Michigan State University Algae
Catalog #: MSC0184691
Isaac Holden #s.n.
Sheathia boryana Sirodot
United States, Connecticut, Fairfield, In running brooks, Bridgeport and Stratford

Miami University - Algae
Catalog #: 000186586
Isaac Holden #s.n.
Batrachospermum boryanum Sirodot
United States, Connecticut, In running brooks, Bridgeport and Stratford