124 Eleventh Annual Report 



found on hillsides and hill tops there are usually only a few in- 

 dividuals, which indicates that the preference of the species is for 

 moist soil conditions. 



The published records of the distribution are as follows: Clark 

 (Smith); Clay (Wilson); Delaware (Phinney); Franklin (Meyncke); 

 Gibson (Schneck); Hamilton (Wilson); Knox (Ridgway); Kosci- 

 usko (Clark) and (Scott); Putnam (Wilson); Steuben (Bradner). 



Additional records are: Crawford (Schneck); vicinity of New 

 Albany (Clapp) ; Putnam (Grimes) and (MacDougal) ; Tippecanoe 

 (Coulter); Clark, Decatur, Fulton, Jennings, Marshall, Monroe, 

 Montgomery, Noble, Owen, Porter, Posey, Steuben, Vermillion, 

 Warren and Wells (Deam). 



Economic uses. Wood soft, light and not strong. Used prin- 

 cipally for pulp and excelsior. The supply in Indiana is so limited 

 as to be of no economic importance. The pioneers were accus- 

 tomed to cut small quaking aspens into convenient sizes for tying 

 in the stalls of their stables in order that their horses might gnaw 

 off the bark which contains a bitter tonic principle. 



3. Populus heterophylla Linnaeus. Large-leaved Cottonwood, 

 Plate 2L Bark deeply furrowed, the furrows as wide as the ridges, 

 reddish-brown; winter buds glabrous or with a few hairs, slightly 

 resinous, about 6 mm. {}4 inch) long; leaves ovate, 7-15 cm. (3-6 

 inches) long, cordate or truncate at the base, velvety when 

 young gradually becoming glabrous above and paler beneath and 

 remaining somewhat pubescent, especially along the conspicuous 

 veins, petioles round or but little flattened; flowering season March 

 or April. 



Distribution. Connecticut south to Georgia and west to Louisi- 

 ana and Missouri. In Indiana it is rare and local, except in the 

 lower Wabash bottoms, where it is frequent or common around 

 ponds and in sloughs. It grows in low woods and swamps. A 

 medium sized tree, usually about 15-25 m. (48-80 feet) high and 

 less than 5 dm. (20 inches) in diameter. 



The published records of the distribution are as follows: Dela- 

 ware, Jay, Randolph and Wayne (Phinney); Franklin (Meyncke); 

 Gibson (Schneck); Hamilton (Doane); Jay (M'Caslin); Knox 

 (Ridgway); Miami (Gorby); Posey (Schneck); Vigo (Blatchley). 



Additional records are: Blackford, Laporte, Posey and Wells 

 (Deam). 



Economic uses. Too rare to be of any economic importance. 



