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