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  1. By: Lesher, Robin. - Derr, Chiska C. - Geiser, Linda - United States. Bureau of Land Management. - United States. Bureau of Land Management. Oregon State Office. - United States. Forest Service.
    Edition: Version 2.0.
    Publication info: [Portland, Or.?], U.S. Department of Agriculture, Forest Service, [2000]
    Holding Institution: Bureau of Land Management
  2. By: United States. Bureau of Land Management. - United States. Bureau of Land Management. Oregon State Office. - Derr, Chiska C. - U.S. Fish and Wildlife Service - United States. Bureau of Land Management. - United States. Forest Service.
    Edition: Version 2.1.
    Publication info: [Portland, Ore.?], U.S. Dept. of the Interior, Bureau of Land Management, 2003
    Holding Institution: Bureau of Land Management
  1. By: Geiser, Linda - Dillman, Karen - Derr, Chiska C. - Stensvold, Mary C.
    Type: Article
    In: Lichenographia Thomsoniana : North American lichenology in honor of John W. Thomson
    Date: 1998
    Page Range: 201--243
    Publication Info: Ithaca, NY, Mycotaxon, Ltd, 1998