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By: Duggar, Benjamin M. (Benjamin Minge), - Armstrong, Joanne KarrerType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 12Series:Issue:Date: 1925Page Range: 359--366Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Duggar, Benjamin M. (Benjamin Minge), - Armstrong, Joanne KarrerType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 10Series:Issue:Date: 1923Page Range: 191--212Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: