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  1. By: González Elizondo, M. Socorro (María Socorro) - Gonzalez Elizondo, Martha. - Sorensen, Paul Davidsen,
    Type: Article
    In: Acta Botánica Mexicana
    Volume: 99
    Date: 2012
    Page Range: 55--72
    Publication Info: México, Instituto de Ecología, A C, 1988-
  2. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Arnoldia
    Volume: 30
    Issue: 4
    Date: 1970
    Page Range: 121--138
    Publication Info: Jamaica Plain, Mass Arnold Arboretum, Harvard University
  3. By: Saar, Dayle E. - Sorensen, Paul Davidsen, - Hjerting, J P
    Type: Article
    In: Acta Botánica Mexicana
    Volume: 64
    Date: 2003
    Page Range: 19--24
    Publication Info: México, Instituto de Ecología, A C, 1988-
  4. By: Saar, Dayle E. - Sorensen, Paul Davidsen,
    Type: Article
    In: Novon a journal of botanical nomenclature from the Missouri Botanical Garden
    Volume: 10
    Date: 2000
    Page Range: 407--410
    Publication Info: St. Louis, MO, Missouri Botanical Garden,
  5. By: Saar, Dayle E. - Sorensen, Paul Davidsen,
    Type: Article
    In: SIDA, contributions to botany
    Volume: 21
    Date: 2005
    Page Range: 2161--2167
    Publication Info: [Dallas, W. F. Mahler, etc.], 1962-
  6. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 59
    Issue: 1
    Date: 1978
    Page Range: 68--73
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  7. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Rhodora
    Volume: 83
    Date: 1981
    Page Range: 145--146
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  8. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Rhodora
    Volume: 82
    Date: 1980
    Page Range: 353--360
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  9. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Rhodora
    Volume: 71
    Date: 1969
    Page Range: 309--365
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  10. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Rhodora
    Volume: 71
    Date: 1969
    Page Range: 367--416
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  11. By: Sorensen, Paul Davidsen,
    Type: Article
    In: Rhodora
    Volume: 71
    Date: 1969
    Page Range: 565--565
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  12. By: Saar, Dayle E. - Sorensen, Paul Davidsen,
    Type: Article
    In: SIDA, contributions to botany
    Volume: 22
    Date: 2006
    Page Range: 545--545
    Publication Info: [Dallas, W. F. Mahler, etc.], 1962-