IB. TENNESSEE VALLEY. 



4ji 



ly of the oak-hickory type. The limestone slopes support 

 a great variety of hardwoods, and these forests have 

 been comparatively little disturbed, because the ground 

 is mostly too steep and rocky for agricultural purposes. 

 The chert ridges, the Little Mountains, and the bottoms, 

 banks and bluffs of the Tennessee River all have their 

 characteristic trees. 



Fires are too rare to be of any importance in this re- 

 gion, originally because of the rapid humification of the 

 fallen leaves, and now also because of the discontinuity 

 of the forests. 



LIST OF TREES. 



3-4 Pinus Taeda 



1-2 Pinus echinata 



1-2 Pinus Virginiana 



0-0 Taxodium distichum 



10-15 Juniperus Virginiana 



3-2 Juglans nigra 



5-4 Hicoria ovata 



2-1 Hicoria alba 



1-1 Hicoria glabra 



0-0 Hicoria minima 



2-4 Salix nigra 



0-0 Populus deltoides 



0-0 Carpinus Caroliniana 



0-0 Ostrya Virginiana 



1-2 Betula nigra 



6-4 Fagus grandifolia 



2-1 Castanea dentata 



4-2 Quercus alba 



3-2 Quercus stellata 



0-1 Quercus Prinus 



2-3 Quercus Muhlenbergii 



0-1 Quercus Michauxii 



4-4 Quercus falcata 



0-0 Quercus velutina 



0-0 Quercus rubra 



1-0 Quercus coccinea 



2-2 Quercus Schneckii 



1-1 Quercus Marylandica 



2-2 Quercus nigra 



2-3 Quercus Phellos 



3-2 Ulmus Americana 



Hartselle sandstone, etc. 

 Driest soils 

 Chert ridges mostly 

 Along creeks west 



of Florence 

 Limestone slopes mostlj 

 Richest soils 



Rich woods 

 Dry woods 

 pry woods 

 River banks 



j Banks of streams 

 'River banks 

 Bottoms 



Banks of creeks 

 I and rivers 



Rich woods 

 I Chert ridges, etc. 

 I Various habitats 

 'Dry non-calcareous soils 

 I Non-calcareous ridges 



Calcareous soils 



Bottoms 

 Dry soils 

 Non-calcareous ridges 



Spanish oak Dry soils 



Calcareous soils 

 Black-jack oak Driest soils 

 Water oak Low grounds 



Willow oak Flatwoods and bottoms 

 Elm Rich soils 



[Short-leaf pine 

 Short-leaf pine 



Cypress 



Cedar 



(Black) walnut 

 Scaly bark [ 



hickory 

 Hickory 

 Hickory 

 Bitternut 



hickory I 



Willow j 



Cottonwood ' 

 Ironwood 



j Birch 



Beech 

 Chestnut 

 White oak 

 Post oak 

 Chestnut oak 



Swamp chest- 

 nut oak 

 Red oak 



