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By: Hansen, Gayle I.Type: ArticleIn: Occasional papers of the Farlow Herbarium of Cryptogamic BotanyVolume: 12Series:Issue:Date: 1977Page Range: 1--22Publication Info: Cambridge, Mass, Harvard University, Farlow Herbarium of Cryptogamic Botany,Subjects:
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By: Hansen, Gayle I.Type: ArticleIn: Occasional papers of the Farlow Herbarium of Cryptogamic BotanyVolume: 12Series:Issue:Date: 1977Page Range: 23--34Publication Info: Cambridge, Mass, Harvard University, Farlow Herbarium of Cryptogamic Botany,Subjects: