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

Brown University - Algae
Catalog #: ABRU00005098
F. Johansen s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor, Northwest Territories, Canada

Yale University Herbarium
Catalog #: YU.095567
Frits Johansen s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor

Field Museum of Natural History
Catalog #: C0527355F
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor

University Herbarium, University of California, Berkeley
Catalog #: UC1827716
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor, North West Territory.

University Herbarium, University of California, Berkeley
Catalog #: UC1827715
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Bernard Harbor, North West Territory.

University of Michigan
Catalog #: 731296
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor

University of Michigan
Catalog #: 1306849
Frits Johansen #s.n. 10 June 1916
Prasiola johansenii
Canada, Northwest Territories, Bernard Harbor

Michigan State University Algae
Catalog #: MSC0184162
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor

Miami University - Algae
Catalog #: 000210318
Frits Johansen #s.n. 10 June 1916
Prasiola johanseni F.S.Collins
Canada, Northwest Territories, Bernard Harbor