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By: Johnson, G T - Peck, Ruth EType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 24Series:Issue:Date: 1937Page Range: 161--174Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Schmitt, Francis Otto, - Johnson, G TType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 25Series:Issue:Date: 1938Page Range: 455--466Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: