44 



Appendix I 



Phytogeographic provinces cited in the text 



The Argentinian phytogeographic areas were described by Cabrera (1976). The author make a general 

 description of the great regions of the world and included Argentina in this context. The main part of his 

 work corresponds to a detailed description of each phytogeographic region in the country, including area, 

 climate, relief, type of soils, predominant vegetation type, and affinities with other areas. The larger regions 

 are divided in domains, and these into provinces. The provinces are divided into districts in which 

 communities are recognized. 



Cabrera (op. cit.) mentioned that Argentina is in the Neotropical and the Antarctic region. A summary of 

 the characteristics of the domains, provinces and districts mentioned in the text is given below, describing 

 only the regions cited in the preceding checklist (see Fig. 2): 



Neotropical Region: 



Amazonian Domain: Includes the Amazonian Basin and extends south as a band along the west of the 

 Andes, to parallel 28° S. Also, includes the forests of the Brazilean Atlantic coast, of Paraguay and 

 northeastern Argentina. In the North, it includes the forests of Central America, northern South America and 

 Caribbean. 



Yungas province: Includes northern and central Salta, eastern Jujuy, central Tucuman and eastern 

 Catamarca as a band that extends over the foothills and low hills. It is a cloud forest with warm and humid 

 climate, with estival rains and hibernal frosts. 



Paranaense province: Mainly in Misiones and northeastern Corrientes. Goes south as gallery forests in 

 Parana and Uruguay Rivers and rivers and rivulets of Santa Fe, Corrientes and Entre Ri'os. Also in eastem 

 Paraguay and Brazil. Forests and savannas with warm and humid climate and rains throughout the year (to 

 2000 mm per year). There are frosts and snowfalls in localities of higher elevations. 



In this province, in the Selvas Mixtas (Mixed Forests) district, Cabrera (op. cit.) recognizes the Pinares 

 (Pine Forests) community, with a high proportion of Araucaria angustifolia and the gallery forests 

 community on the margins of great rivers. He also recognized: Campos district: in Misiones and 

 northeastern Corrientes. These are "campos" or savannas of grasses 1 to 1.5 meters high. 



Chacoan Domain: in most of Argentinian territory, practically from the Atlantic Ocean to the Andes Range 

 and from northern limit to Chubut. It includes various vegetation types and different climates, with moderate 

 to sparing rains, moderate winter and warm summer. 

 Chacoan province: Formosa, Chaco, eastern Salta, Jujuy, Catamarca and Tucuman and western Corrientes 

 in Argentina. Extends south to northern Santa Fe and Cordoba and west to La Rioja and San Luis. Enters in 

 central and western Paraguay, southwestern Bolivia and southwestern Brazil. Mostly xerophytic forests 

 with warm climate, few summer rains in western areas and abundant rains in eastern ones. 

 Chaqueno Oriental district: Eastern Formosa and Chaco, northern Santa Fe and northwestern Corrientes. 

 Xerophytic forests with palm communities and savannas. 



Chaqueiio Occidental district: Western Formosa and Chaco, tip of northeastern Santa Fe, eastern Salta 

 and Tucuman and eastem end of Jujuy and Catamarca. Mostly xerophytic forests with 500 to 800 mm of 

 annual rain. 



Chaqueiio Serrano district: Low hills (to 1800 m.) of eastem Jujuy, central Salta and Tucuman and 

 eastem end of Catamarca. Also in "Sierras" of Cordoba, La Rioja and San Luis. Mainly xerophytic forests 

 and grassy steppes. 



Espinal province: Central Corrientes and northern Entre Rios, central Santa Fe and Cordoba, San Luis, 

 center of La Pampa to southern Buenos Aires. Mainly xerophytic deciduous forests. Palm communities, 

 grassland savannas and grassy or shrubby steppes. Warm and humid climate in northern areas and template 

 and dry in southern and western regions. 



Nandubay district: Southern Corrientes, northwestern and central Entre Ri'os and central Santa Fe. Warm 

 and humid climate. Nandubay (Prosopis algarobilla) forests and specific communities, such as Palm 

 communities, steppes and grasslands. 



