102 



OUTLINE OF PLANT GEOGRAPHY 



the common species is P. rigida, further south the long-leaved 

 pine, P. palustris, occurs, but P. taeda and P. rigida, occur through- 

 out the region. These pine forests may have no other trees, 

 or there may be an undergrowth of smaller trees, especially 

 oaks. 



In South Carolina, as in Florida, there are level sandy stretches 

 of great extent, with a dense growth of the dwarf saw-palmetto 

 (Serenoa serruiata) interspersed with stunted pines, including the 



—Cypress swamp, Wakulla Springs, Florida. Taxodium distich um, with 

 Tillandsia. Photo., Professor H. Kurz. 



West Indian P. Caribaea. In Georgia are extensive pure stands of 

 the long-leaved pine (Pinus palustris), highly prized for its timber. 

 In the wet districts are often extensive " cane-brakes," in which 

 the principal element is the reed-grass, Ariindinaria macro sperma. 

 The coastal plain of the Gulf States much resembles the southern 

 Atlantic coast and the long-leaved pine is the prevailing species. 

 This formation reaches its western limit in Texas, and part of it 

 may be seen along the Southern Pacific railway, before reaching 

 the swamp-lands near New Orleans. 



As one passes from the dr} r prairies of the interior of Texas, 



