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

Brown University - Algae
Catalog #: ABRU00003782
I. Holden s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, St. Johns, NL, Canada

Yale University Herbarium
Catalog #: YU.092165
Isaac Holden s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, St. Johns

University of Michigan
Catalog #: 638001
Isaac Holden #s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, St. John's

University of Michigan
Catalog #: 638006
Isaac Holden #s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, St. John's

Michigan State University Algae
Catalog #: MSC0183975
Isaac Holden #s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Saint John's, Newfoundland

Miami University - Algae
Catalog #: 000188065
Isaac Holden #s.n. 14 July 1897
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, St. John's