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  1. By: Spence, John R., - Shaw, Richard J
    Type: Article
    In: The Great Basin naturalist
    Volume: 41
    Date: 1981
    Page Range: 232--242
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,
  2. By: Shaw, Richard J
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 11
    Date: 1952
    Page Range: 297--304
    Publication Info: Berkeley, California Botanical Society,
  3. By: Spence, John R., - Shaw, Richard J
    Type: Article
    In: The Great Basin naturalist
    Volume: 43
    Date: 1983
    Page Range: 483--491
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,
  4. By: Shaw, Richard J
    Type: Article
    In: SIDA, contributions to botany
    Volume: 4
    Date: 1968
    Page Range: 1--56
    Publication Info: [Dallas, W. F. Mahler, etc.], 1962-