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  1. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 5
    Date: 1939
    Page Range: 74--74
    Publication Info: Berkeley, California Botanical Society,
  2. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1933
    Page Range: 92--93
    Publication Info: Berkeley, California Botanical Society,
  3. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1934
    Page Range: 160--160
    Publication Info: Berkeley, California Botanical Society,
  4. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1931
    Page Range: 30--31
    Publication Info: Berkeley, California Botanical Society,
  5. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1932
    Page Range: 57--57
    Publication Info: Berkeley, California Botanical Society,
  6. By: Keck, David Daniels, - Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1932
    Page Range: 76--80
    Publication Info: Berkeley, California Botanical Society,
  7. By: Keck, David Daniels, - Crum, Ethel Katherine. - Bracelin, N. Floy (Nina Floy),
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1933
    Page Range: 103--104
    Publication Info: Berkeley, California Botanical Society,
  8. By: Crum, Ethel Katherine. - Abrams, Le Roy, - Babcock, E. B. (Ernest Brown), - Epling, Carl, - Ferris, Gordon Floyd, - Howell, John Thomas, - Miller, A H - Mason, H. L. (Herbert Louis), - Miller, L H - Darlington, C. D. (Cyril Dean), - Clausen, Jens (Jens Christian), - Sumner, Francis B. (Francis Bertody), - Keck, David Daniels, - Dobzhansky, Theodosius, - Mcminn, H E
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1933
    Page Range: 110--112
    Publication Info: Berkeley, California Botanical Society,
  9. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 2
    Date: 1934
    Page Range: 136--136
    Publication Info: Berkeley, California Botanical Society,
  10. By: Gander, Frank F - Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 5
    Date: 1939
    Page Range: 79--80
    Publication Info: Berkeley, California Botanical Society,
  11. By: Epling, Carl, - Copeland, Edwin Bingham, - Crum, Ethel Katherine. - Mason, H. L. (Herbert Louis),
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 5
    Date: 1939
    Page Range: 135--136
    Publication Info: Berkeley, California Botanical Society,
  12. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1935
    Page Range: 178--180
    Publication Info: Berkeley, California Botanical Society,
  13. By: Mielke, J L - Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 6
    Date: 1941
    Page Range: 30--32
    Publication Info: Berkeley, California Botanical Society,
  14. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 6
    Date: 1941
    Page Range: 63--63
    Publication Info: Berkeley, California Botanical Society,
  15. By: Maguire, Bassett, - Tucker, John M. - Crum, Ethel Katherine. - Carter, A. - Keck, David Daniels,
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 6
    Date: 1942
    Page Range: 173--175
    Publication Info: Berkeley, California Botanical Society,
  16. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1936
    Page Range: 224--224
    Publication Info: Berkeley, California Botanical Society,
  17. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1936
    Page Range: 256--256
    Publication Info: Berkeley, California Botanical Society,
  18. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1936
    Page Range: 373--374
    Publication Info: Berkeley, California Botanical Society,
  19. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1935
    Page Range: 32--32
    Publication Info: Berkeley, California Botanical Society,
  20. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 3
    Date: 1935
    Page Range: 116--116
    Publication Info: Berkeley, California Botanical Society,
  21. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 5
    Date: 1940
    Page Range: 250--270
    Publication Info: Berkeley, California Botanical Society,
  22. By: Crum, Ethel Katherine.
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 7
    Date: 1943
    Page Range: 63--64
    Publication Info: Berkeley, California Botanical Society,