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By: Dunn, David B. - Harmon, William EType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 64Series:Issue:Date: 1977Page Range: 340--365Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Nelson, Jody K - Harmon, William EType: ArticleIn: PhytologiaVolume: 83Series:Issue:Date: 1997Page Range: 286--301Publication Info: Bronx Park, New York H.A. Gleason and H.N. MoldenkeSubjects: