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

Brown University - Algae
Catalog #: ABRU00003783
M. A. Howe s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, Near Channel, NL, Canada

Yale University Herbarium
Catalog #: YU.106598
Marshall A. Howe s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, near Channel

University of Michigan
Catalog #: 638002
Marshall A. Howe #s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, near Channel, Newfoundland

University of Michigan
Catalog #: 638007
Marshall A. Howe #s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, near Channel, Newfoundland

Michigan State University Algae
Catalog #: MSC0183976
Marshall A. Howe #s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, near Channel, Newfoundland

Miami University - Algae
Catalog #: 000188066
Marshall A. Howe #s.n. 01 August 1901
Petalonia zosterifolia (Reinke) Kuntze
Canada, Newfoundland and Labrador, Grand Bay, near Channel, Newfoundland