Thomson, Lich. Arct. [Madison (Wisconsin)]
John Walter Thomson [1 - 115]
IndExs #515968978

University of Michigan Herbarium
Catalog #: 77121
f7182360-0076-4f55-bda6-ef64fc9b359d
J. W. Thomson #s. n. 20 July 1959
Cetraria islandica (L.) Ach.
Canada, Northwest Territories, no data, Rossby Lake, in central Keewatin

Lichen Herbarium of the Museum of Evolution, Uppsala University
Catalog #: L-160626
John W. Thomson s.n. 20 July 1959
Cetraria islandica (L.) Ach.
Canada, Northwest Territories, District of Keewatin, on esker and nearby ridges of Rossby Lake in central Keewatin

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0008251
John W. Thomson #53 20 July 1959
Cetraria islandica (L.) Ach.
Canada, Nunavut, Keewatin District, Rossby Lake in central Keewatin

University of Wisconsin - Madison
Catalog #: WIS-L-0109569
John W. Thomson #s.n. 20 July 1959
Cetraria islandica (L.) Ach.
Canada, Nunavut, Keewatin District, Rossby Lake in central Keewatin

Duke University Herbarium Lichen Collection
Catalog #: 219297
f66ab30f-3742-4eae-be87-68061978d0ed
Thomson, John, W. #s.n. 20 July 1959
Cetraria islandica (L.) Ach.
Canada, Nunavut, District of Keewatin. Rossby Lake, in central Keewatin