004190000a2200121000450024500790000065000250007965000250010465000190012965000260014804100130017410000200018777300900020710aNeeds and opportunities of South American Botanic Gardens for conservation14aJardines botánicos14aRecursos genéticos14aConservación14aEducación ambiental0 aInglés1 aForero, Enrique1 tTropical Botanic Gardens: their role in conservation and development318q25-33d1991