1.
Rev Alerg
; 39(6): 120-5, 1992.
Artigo
em Espanhol
| MEDLINE
| ID: mdl-1492195
RESUMO
The climatic conditions and the vegetation in the valley of Mexico are analyzed in virtue of their modification during the last few years which have consequently altered the surrounding ecological systems. In this article, we were particularly interested in describing the botanical characteristics of the gimnospermas, an abundant vegetation in Mexico.