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  1. Arracacia ravenii (Apiaceae), a new species from southern Mexico
    By: Affolter, J - Constance, L
    Type: Article
    In: Novon
    Volume: 5
    Date: 1995
    Page Range: 22--23
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  2. A new species of Lilaeopsis (Apiaceae) from Mauritius
    By: Affolter, J - Petersen, G
    Type: Article
    In: Novon
    Volume: 9
    Date: 1999
    Page Range: 92--94
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