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By: Marsden, Margery P.F. - Bailey, Irving W. (Irving Widmer),Type: ArticleIn: Journal of the Arnold ArboretumVolume: 36Series:Issue: 1Date: 1955Page Range: 1--51Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-Subjects:
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By: Marsden, Margery P.F. - Steeves, Taylor A.,Type: ArticleIn: Journal of the Arnold ArboretumVolume: 36Series:Issue: 2-3Date: 1955Page Range: 241-258Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-Subjects: