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

Field Museum of Natural History
Catalog #: C0518515F
F.S. Collins #s.n. 17 June 1899
Dictyosiphon hippuroides f. fragilis (Harvey) Kjellman
United States, Massachusetts, Essex, Marblehead

Brown University - Algae
Catalog #: ABRU00002976
I. Holden s.n. 18 April 1897
Porphyra leucosticta Thuret
United States, Connecticut, Bridgeport Harbor, CT

Field Museum of Natural History
Catalog #: C0503378F
I. Holden #s.n. 18 April 1897
Porphyra leucosticta Thuret
United States, Connecticut, Fairfield, Bridgeport Harbor

Yale University Herbarium
Catalog #: YU.091458
Isaac Holden s.n. 18 April 1897
Porphyra leucosticta Thuret
United States, Connecticut, Fairfield, Bridgeport Harbor, CT

University Herbarium, University of California, Berkeley
Catalog #: UC1879574
Isaac Holden #376 18 April 1897
Pyropia leucosticta (Thuret) Neefus & J.Brodie
United States, Connecticut, Fairfield, Bridgeport Harbor.

University of Michigan
Catalog #: 670643
Isaac Holden #s.n. 18 April 1897
Pyropia leucosticta (Thuret) Neefus & J.Brodie
United States, Connecticut, Bridgeport Harbor

University of Michigan
Catalog #: 670651
Isaac Holden #s.n. 18 April 1897
Pyropia leucosticta (Thuret) Neefus & J.Brodie
United States, Connecticut, Bridgeport Harbor

Michigan State University Algae
Catalog #: MSC0184344
Isaac Holden #s.n. 18 April 1897
Porphyra leucosticta Thuret
United States, Connecticut, Fairfield, Bridgeport Harbor

Miami University - Algae
Catalog #: 000186787
Isaac Holden #s.n. 18 April 1897
Porphyra leucosticta Thuret
United States, Connecticut, Bridgeport Harbor