Thomson, Lich. Arct.J.W. Thomson [1 - 90]
USDA United States National Fungus Collections
Thomson J.W. #s.n. 20 July 1959
Cetraria delisei (Bory ex Schaer.) Nyl.
Canada, Northwest Territories, Rossby Lake, in central Keewatin on esker and nearby ridges
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