POPLAK. ASPEN. LARGE-TOOTHED ASPEN. 117 



In North Carolina it is found from the coast to the mountains, 

 growing on loamy soils along streams, and reaches a height of 30 

 feet and a diameter of 15 inches. It is rare in the high moun- 

 tains, but in the Piedmont plateau is much more abundant. 



Seed is borne abundantly and at frequent intervals, and seed- 

 lings are common on bottom lands. Trees of all sizes sprout from 

 the stump. It is easily propagated from cuttings. The smaller 

 branches and twigs are often injured by a saw fly, Cirnbex 

 americana. 



The leaves are narrow, lance-shaped, toothed arid tapering at 

 the ends. The flowers appear in early spring in drooping catkins, 

 the male and female on separate trees. The fruit is a pendulous 

 catkin, made up of small capsules containing minute seeds which 

 are clothed with long silky hairs. The roots are very fibrous and 

 tough. The light, coarse-grained wood is soft, not strong, and 

 brown in color ; the sapwood much lighter. The bark is some- 

 times used medicinally. 



Populus grandidenta, Michaux. 

 (POPLAR. ASPEN. LARGE-TOOTHED ASPEN.) 



A tree, with a short body, pyramidal crown, and rather smooth 

 gray bark, reaching a height of 80 and a diameter of 2 feet. 



It occurs in moist situations from Nova Scotia and New Bruns- 

 wick westward through Ontario to northern Minnesota, south 

 through the northern states, and along the Appalachian moun- 

 tains to North Carolina, extending westward to middle Kentucky, 

 and Tennessee. 



In this State, where it reaches an average height of 40 feet and 

 an average diameter of 12 inches, it is found in the upper part of 

 the Piedmont plateau, but is not very common. 



Although it bears seed frequently, young seedlings are uncom- 

 mon. The rate of growth is uniformly rapid. The trunk is 

 attacked by several borers and the leaves are often stripped 

 off by caterpillars. 



The leaves, which are borne on slender flattened stems are 

 roundish, with 5 to 9 large blunt teeth on each side. The flowers 



