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By: Young, Joyce Redemsky. - Earle, Sylvia A. (Sylvia Alice),Type: ArticleIn: Occasional papers of the Farlow Herbarium of Cryptogamic BotanyVolume: 3Series:Issue:Date: 1972Page Range: 1--8Publication Info: Cambridge, Mass, Harvard University, Farlow Herbarium of Cryptogamic Botany,Subjects: