45 



Algarrobal district: Central Santa Fe and Cordoba to northern San Luis. With lower species number and 

 more xerophytic than the Nandubay district. The Algarrobo {Prosopis nigra, Prosopis alba) forests are the 

 typical communities in the district. 



Calden district: Central and southern San Luis, central La Pampa and southern Buenos Aires. Xerophytic 

 forests of Calden {Prosopis caldenia). 



Monte Province 

 Espinal Province 

 Pampean Austral district 

 Patagonica Province 

 Subantartic Province 

 ^ Yungas Province 



□ Chaquena Province 

 Occidental District 

 [^Altoandina Province 



^3 Puna Province 



Chaquefta Province 



Oriental district 

 Campos district 

 Paranaense Province 



Figure 2: Argentinian phytogeographics formations. Modified from Cabrera (1976) and 

 Burkartc/a/. (1996). 



