l 1111 >TKATH^ 



FACING 

 PLATE PAGE 



XXIII. Stand similar to that in Plate XXII but unburned for 15 years. 



Tendency of scrubby hardwoods to replace pine. Note un- 

 necessarily high stumps; and old fire scar on butt of log on 

 right. (Photo. U. S. Forest Service.) 156 



XXIV. Crown cover of Loblolly Pine. Quality I stand, 70 years old. 



Its density is noteworthy. (Author's illustration.) 158 



XXV. Crown cover of Loblolly Pine. Quality III stand in old field, 

 age 50 years. The complete isolation of the crowns is char- 

 acteristic. Groups of seedlings are beginning to establish 

 themselves under such a canopy. (Author's illustration.) . . . 158 

 XXVI. Crown cover of Loblolly Pine, Quality II, age 35 years. Crowns 

 well developed and symmetrical. Excellent condition for 



rapid individual growth. (Author's illustration.) 160 



XXVII. Crown cover of Loblolly Pine, Quality II, age 35 years. Crowns 

 small but stems clean. Stand crowded, in urgent need of 

 thinning to develop large crowns. (Author's illustration.) . . 160 



TEXT FIGURES 



FIG. PAGE 



1. Distribution of loblolly pine and shortleaf pine in the Southern 



States. (Compiled by author.) 5 



2. Distribution of loblolly pine in North Carolina. (Prepared by 



author. ) 11 



a. and b. Roots of mature loblolly pines on upland clays. (From 



Photo, by author. ) ?T 39 



c. Two-year old loblolly pine seedling. (From Photo, by author.) ... 39 

 4a. Roots of loblolly pine saplings on dry sandy upland soils. (Adapted 



from Photo, by J. S. Holmes. ) 39 



6. Roots of loblolly pine on moist but well drained sandy loam soils. 



Small deep seated roots extending to water table. (Adapted by 



author from Photo by Von Schrenk. ) 39 



c. Roots of loblolly pine on wet soils. No deep seated roots, but a 



great mass of shallow roots. (From sketch made from nature.) 39 

 5. Relation between loblolly pine quality sites and depth of water 



table in soils of different texture. (Author's illustration.) 56 



