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By: Hotson, J WType: ArticleIn: Proceedings of the American Academy of Arts and SciencesVolume: 48Series:Issue:Date: 1912Page Range: 227--306Publication Info: Boston, Metcalf and Co, 1846-1958Subjects:
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By: Hotson, J WType: ArticleIn: Botanical gazetteVolume: 64Series:Issue: 4Date: 1917Page Range: 265--284Publication Info: Hanover, Ind, [publisher not identified], 1876-1991Subjects: