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By: Vieira, Ima Célia Guimarães - Silva, José Maria Cardoso daType: ArticleIn: Sociedade Botânica de São PauloVolume:Series:Issue:Date: 1997-06-01Page Range:Publication Info: Sociedade Botânica de São Paulo 1997-06-01Subjects: Abandoned pastures Amazonia Cordia multispicata reprocuctive biology weed ecology