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By: Heinrich, BerndType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 68Series:Issue:Date: 1981Page Range: 370--378Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Heinrich, BerndType: ArticleIn: The Wilson bulletinVolume: 115Series:Issue: 2Date: 2003Page Range: 113--114Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: