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By: Wagstaff, Steven J - Bayly, Michael J - Garnock-Jones, Philip J - Albach, Dirk CType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 89Series:Issue:Date: 2002Page Range: 38--63Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Wagstaff, Steven J - Taylor, Ronald J.Type: ArticleIn: Madroño; a West American journal of botanyVolume: 35Series:Issue:Date: 1988Page Range: 266--277Publication Info: Berkeley, California Botanical Society,Subjects:
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By: Wagstaff, Steven J - Clarkson, BeverleyType: ArticleIn: PhytoKeysVolume: 13Series:Issue:Date: 2012Page Range: 39-79Publication Info: Pensoft Publishers 2012Subjects: