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By: Giulietti, Nelson - Giulietti, Ana Maria - Pirani, José Rubens - Menezes, Nanuza Luiza deType: ArticleIn: Acta Botanica BrasilicaVolume:Series:Issue:Date: 1987-12-01Page Range:Publication Info:Subjects: Cyperaceae Economic botany Eriocaulaceae Everlasting flowers Gramineae Xyridaceae