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

Brown University - Algae
Catalog #: ABRU00002744
F. S. Collins s.n. 14 June 1895
Porphyra laciniata C.Agardh
United States, Massachusetts, Nahant, MA

University Herbarium, University of California, Berkeley
Catalog #: UC1879949
F. S. Collins #s.n. 14 June 1895
Porphyra umbilicalis Kützing
United States, Massachusetts, Essex, Nahant

Field Museum of Natural History
Catalog #: C0503376F
F.S. Collins #s.n. 14 June 1895
Porphyra laciniata C.Agardh
United States, Massachusetts, Essex, Nahant

University of Michigan
Catalog #: 669171
F.S. Collins #s.n. 14 June 1895
Porphyra umbilicalis Kützing
United States, Massachusetts, Essex, Nahant

University of Michigan
Catalog #: 669188
F.S. Collins #s.n. 14 June 1895
Porphyra umbilicalis Kützing
United States, Massachusetts, Essex, Nahant

Michigan State University Algae
Catalog #: MSC0184337
F.S. Collins #s.n. 14 June 1895
Porphyra laciniata C.Agardh
United States, Massachusetts, Essex, Nahant

Miami University - Algae
Catalog #: 000186639
F.S. Collins #s.n. 14 June 1895
Porphyra laciniata C.Agardh
United States, Massachusetts, Essex, Nahant

Yale University Herbarium
Catalog #: YU.091315
Frank Shipley Collins s.n. 14 June 1895
Porphyra laciniata C.Agardh
United States, Massachusetts, Essex, Nahant; Nahant, MA