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

Brown University - Algae
Catalog #: ABRU00002601
I. Holden s.n.
Tetraspora bullosa var. cylindracea De Toni, 1889
United States, Connecticut, Parrott's Pond, Bridgeport, CT

Miami University - Algae
Catalog #: 000186513
I. Holden #s.n. 00 November 1891
Tetraspora bullosa var. cylindracea De Toni, 1889
United States, Connecticut, Fairfield, Parrott's Pond, Bridgeport

Yale University Herbarium
Catalog #: YU.091144
Isaac Holden s.n. 00 November 1891
Tetraspora bullosa Kützing
United States, Connecticut, Bridgeport; Parrott's Pond, Bridgeport, CT

University of Michigan
Catalog #: 732283
Isaac Holden #s.n. 00 November 1891
Tetraspora bullosa Kützing
United States, Connecticut, Fairfield, Parrotts Pond, Bridgeport

University of Michigan
Catalog #: 732287
Isaac Holden #s.n. 00 November 1891
Tetraspora bullosa Kützing
United States, Connecticut, Fairfield, Parrotts Pond, Bridgeport

Michigan State University Algae
Catalog #: MSC0183536
Isaac Holden #s.n. 00 November 1891
Monostroma bullosum (Roth) Thuret
United States, Connecticut, Fairfield, Parrott's Pond, Bridgeport