In the rich river bottoms there is usually a rather heavy 

 growth of white, willow and water oaks, beech, black and 

 sweet gum, and cypress. Redbud (Cercis canadensis) and 

 alder (Alnus serrulata) are also abundant. Along these low 

 river bottoms the bamboo-canes, Arundinaria tecta and 

 macrosperma, are well distributed over most of the Southern 

 States and form at times immense "cane-brakes." The 

 Delphacid, Stenocranus similis and the Cicadellids, Chloro- 



Fig. 3 View at edge of cane-brake in Mississippi Delta near 

 Greenville, Miss. 



tettix nacreosa, suturalis and galbanata, Thamnotettix 

 shermani, flavotinctus and crumbi, and Deltocephalus arun- 

 dineus are typical of this habitat and probably occur where- 

 ever the cane-brake occurs. Oliarus placitus was taken only 

 in this habitat in Mississippi but its host plant is probably 

 the hackberry, Celtis mississippiensis, that grows amid 



the cane-brake. 

 THE PINE-BARREN OR LONG-LEAF PINE ASSOCIATION 



The so-called pine-barrens make up a large area in 

 Georgia, Florida, Alabama and Mississippi. In the parts 

 most remote from the coast the country is moderately hilly 

 and the soil is usually a grayish sandy loam. Toward the 

 coast the relief is very flat and poorly drained, ponds and 



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