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  1. By: Prakash, U
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 42
    Issue: 4
    Date: 1961
    Page Range: 442--446
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  2. By: Prakash, U - Barghoorn, Elso S. (Elso Sterrenberg),
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 42
    Issue: 2
    Date: 1961
    Page Range: 165--203
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-
  3. By: Prakash, U - Barghoorn, Elso S. (Elso Sterrenberg),
    Type: Article
    In: Journal of the Arnold Arboretum
    Volume: 42
    Issue: 3
    Date: 1961
    Page Range: 347--362
    Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-