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By: Gray, Jane,Type: ArticleIn: Madroño; a West American journal of botanyVolume: 15Series:Issue:Date: 1959Page Range: 62--63Publication Info: Berkeley, California Botanical Society,Subjects:
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By: Gray, Jane,Type: ArticleIn: Bulletin of the British Museum (Natural History) GeologyVolume: 43Series:Issue:Date: 1988-04-28Page Range: 351--358Publication Info: London, BM(NH),Subjects: