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  1. By: Hernández, Valentín J Reyes - Hernández, J Jesús Vargas - Upton, Javier Lopez - Vaquera Huerta, Humberto
    Type: Article
    In: Acta Botánica Mexicana
    Volume: 70
    Date: 2005
    Page Range: 47--67
    Publication Info: México, Instituto de Ecología, A C, 1988-