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

Brown University - Algae
Catalog #: ABRU00003857
E. Butler s.n.
Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island, BC, Canada

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021472
E. Butler s.n. 00 July 1901
Polyostea bipinnata (Postels & Ruprecht) Ruprecht
United States, Minnesota, Minnesota Seaside Station, Vancouver Island

Michigan State University Algae
Catalog #: MSC0184232
E. Butler #s.n. 00 July 1901
Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island

Miami University - Algae
Catalog #: 000188137
E. Butler #s.n. 00 July 1901
Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island

Yale University Herbarium
Catalog #: YU.092228
Eloise Butler s.n.
Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island

University of Michigan
Catalog #: 669927
Eloise Butler #s.n. 00 July 1901
Polyostea bipinnata (Postels & Ruprecht) Ruprecht
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island

University of Michigan
Catalog #: 669938
Eloise Butler #s.n. 00 July 1901
Polyostea bipinnata (Postels & Ruprecht) Ruprecht
Canada, British Columbia, Minnesota Seaside Station, Vancouver Island