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By: Rocha, Joecildo Francisco - Machado, Silvia RodriguesType: ArticleIn: Sociedade Botânica de São PauloVolume:Series:Issue:Date: 2009-09-01Page Range:Publication Info: Sociedade Botânica de São PauloSubjects: Anatomy extrafloral nectary Hibiscus pernambucensis Histochemistry ultrastructure