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By: Bowden, Wray M.Type: ArticleIn: Journal of the Arnold ArboretumVolume: 38Series:Issue: 4Date: 1957Page Range: 381--388Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-Subjects:
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By: Bowden, Wray M. - Miller, BertType: ArticleIn: The Canadian field-naturalistVolume: 65Series:Issue: 1Date: 1951Page Range: 27--31Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: