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By: Seavey, Steven R - Wright, Philip - Raven, Peter HType: ArticleIn: Madroño; a West American journal of botanyVolume: 24Series:Issue:Date: 1977Page Range: 6--12Publication Info: Berkeley California Botanical SocietySubjects:
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By: Seavey, Steven R - Magill, Robert E. - Raven, Peter HType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 64Series:Issue:Date: 1977Page Range: 18--47Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: