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  1. Matelea roulinioides, uma nova espéecie da Tribo Gonolobeae (Asclepiadaceae) do Nordeste Brasileiro
    By: Stevens, Warren - Agra, Maria De Fatima
    Type: Article
    In: Novon
    Volume: 6
    Date: 1996
    Page Range: 6--8
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  2. A new species of Solanum section Micracantha (Solanaceae) from northeastern Brazil
    By: Agra, Maria De Fatima
    Type: Article
    In: Novon
    Volume: 2
    Date: 1992
    Page Range: 179--181
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  3. A new species of Solanum subgenus Leptostemonum (Solanaceae) from Chapada da Diamantina, Bahia, Brazil
    By: Agra, Maria De Fatima
    Type: Article
    In: Novon
    Volume: 9
    Date: 1999
    Page Range: 292--295
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