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By: Bowles, Marlin L. - Mcbride, J L - Betz, R. F.Type: ArticleIn: Annals of the Missouri Botanical GardenVolume: 85Series:Issue:Date: 1998Page Range: 110--125Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Betz, R. F.Type: ArticleIn: Field Museum of Natural History bulletinVolume: 43Series:Issue: 4Date: 1972Page Range: 8--9Publication Info: [Chicago, Ill.], The Museum, [1972]-©1990Subjects: