﻿2 BULLETIN 11, U. S. DEPARTMENT OF AGRICULTURE. 



all species and that of yellow pine in these counties in 1909, and an 

 estimate of the proportion which loblolly formed of the yellow pine 

 output. 



Table 1. — Cut of lumber in 60 counties of Delaware, Maryland, and Virginia in 1909. 





Cut of all 



species, 

 Mb. f. 



Cut of yellow pine. 



Proportion of yellow pine 



State. 



Mb.f. 



Per cent 

 of total. 



output cut from lob- 

 lolly pine. 



Delaware (2 counties; 135 square miles) 

 Maryland (13 counties; 440 square miles)... 

 Virginia (45 counties; 1,250 square miles) . . . 



51,967 



143,540 



1,295,353 



38, 767 



97,975 



1,116,334 



74.6 

 68.2 

 86.2 



90 per cent loblolly. 

 80 per cent loblolly. 

 75 per cent loblolly. 



Total (1,825 square miles) 



1,490,860 



1,253,076 



84.1 





As seen from the table, yellow pine forms the bulk of the lumber 

 output, and is in turn composed chiefly of loblolly. 



FOREST TYPES. 



Loblolly pine occurs, even in the same locality, in a number of 

 forest types arising from differences in physiography and soil. Five- 

 sixths of the region, including all of the Maryland and Delaware por- 

 tions and the larger part of the area in Virginia, lies in the compara- 

 tively flat coastal plains or "tidewater" region, with an average 

 elevation of about 100 feet above sea, and containing much wet, 

 poorly drained land. The remaining one-sixth is in the eastern 

 part of the well-drained rolling hill country or Piedmont section of 

 middle Virginia, with an elevation varying from 100 to 500 feet. The 

 soils in the Coastal Plain section are generally light, while those in 

 the Piedmont are heavy. 



• 

 Coastal Plain Types. 



In the tidewater section loblolly pine grows : 



(1) In pure stands: (a) on old fields, where most of the pure stands 

 of any extent are found; (&) on moist soils along the edges of swamps, 

 streams, and ponds, usually in comparatively small groups. 



(2) In mixture with other species in swamps or semiswamps; 

 (a) with cypress, gum, and maple on very wet land subject to over- 

 flow; (h) with maple, gum, several species of oak, and yellow poplar 

 on moist to wet land not subject to inundation. 



(3) On well-drained or upland soils in mixture with oaks, hickory, 

 cedar, and gum, and shortleaf, scrub, and pitch pines. 



In the Virginia tidewater section, covering some 11,000 square 

 miles (7,000,000 acres), loblolly is the only species of pine occurring 

 to any extent in commercial quantities, and is the important timber 

 tree. In the northern half oi' It Maryland-Delaware Coastal Plain 



