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

Brown University - Algae
Catalog #: ABRU00003228
I. Holden s.n.
Grinnellia americana (C.Agardh) Harvey
United States, Connecticut, Bridgeport, CT

Yale University Herbarium
Catalog #: YU.106531
Isaac Holden s.n. 00 July 1898
Grinnellia americana (C.Agardh) Harvey
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

Miami University - Algae
Catalog #: 000187133
Isaac Holden #s.n. 00 July 1898
Grinnellia americana (C.Agardh) Harvey
United States, Connecticut, Fairfield, Bridgeport