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  1. By: Christy, John A. (John Ashton), - Harpel, Judith A - Interior Columbia Basin Ecosystem Management Project (U.S.) - Oregon Natural Heritage Program. - United States. Forest Service. - United States. Bureau of Land Management.
    Publication info: [Portland, Or.], Interior Columbia Basin Ecosystem Management Project, 1995
    Holding Institution: Bureau of Land Management
  2. By: Christy, John A. (John Ashton), - Wagner, David H., - United States. Bureau of Land Management. - United States. Bureau of Land Management. Oregon State Office.
    Publication info: Portland, Or, U.S. Department of the Interior, Bureau of Land Management, Oregon-Washington State Office, 1996
    Holding Institution: Bureau of Land Management
  1. By: Christy, John A. (John Ashton), - Meyer, T A
    Type: Article
    In: Rhodora
    Volume: 93
    Date: 1991
    Page Range: 242--247
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Christy, John A. (John Ashton),
    Type: Article
    In: Evansia
    Volume: 20
    Issue: 4
    Date: 2003
    Page Range: 107--113
    Publication Info: Springfield, Mo American Bryological and Lichenological Society c1984-
  3. By: Christy, John A. (John Ashton), - Mccain, Cynthia N - Greene, Sarah E - Lippert, Jennifer D
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 61
    Date: 2014
    Page Range: 201--217
    Publication Info: Berkeley, California Botanical Society,
  4. By: Christy, John A. (John Ashton), - Alverson, Edward R - Thomas, Duncan W.
    Type: Article
    In: American fern journal
    Volume: 105
    Date: 2015
    Page Range: 56-58
    Publication Info: [Washington, etc.] American Fern Society
  5. By: Christy, John A. (John Ashton), - Helliwell, Richard - Zika, Peter F.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 38
    Date: 1991
    Page Range: 204--205
    Publication Info: Berkeley, California Botanical Society,
  6. By: Imdorf, Gregory J - Pinkava, Donald J - Mcmahon, Shelley - Fishbein, Mark - Christy, John A. (John Ashton), - Sytsma, Mark D - Vasey, Michael C.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 41
    Date: 1994
    Page Range: 330--333
    Publication Info: Berkeley, California Botanical Society,
  7. By: Constantine-Shull, Helen - Rice, Barry A. - Robison, Ramona - Randall, John M - Felger, Richard Stephen - Christy, John A. (John Ashton), - Zika, Peter F.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 47
    Date: 2000
    Page Range: 209--216
    Publication Info: Berkeley, California Botanical Society,
  8. By: Christy, John A. (John Ashton),
    Type: Article
    In: Evansia
    Volume: 6
    Issue: 1
    Date: 1989
    Page Range: 12--13
    Publication Info: Springfield, Mo American Bryological and Lichenological Society c1984-
  9. By: Christy, John A. (John Ashton),
    Type: Article
    In: Phytologia
    Volume: 63
    Date: 1987
    Page Range: 449--454
    Publication Info: Bronx Park, New York H.A. Gleason and H.N. Moldenke
  10. By: Christy, John A. (John Ashton), - Dibben, Martyn J. - Bowers, Frank D. - Andrus, Richard E. (Richard Edward),
    Type: Article
    In: Evansia
    Volume: 3
    Issue: 1
    Date: 1986
    Page Range: 12--13
    Publication Info: Springfield, Mo American Bryological and Lichenological Society c1984-
  11. By: Christy, John A. (John Ashton), - Johnson, Paul J.
    Type: Article
    In: Evansia
    Volume: 5
    Issue: 1
    Date: 1988
    Page Range: 16--16
    Publication Info: Springfield, Mo American Bryological and Lichenological Society c1984-