34 TREES OF NEW ENGLAND. 



elongating; scales reddish-brown ; ovary short-stalked ; styles 

 '2 .*!. united a1 the base; stigmas 2 .'!. conspicuous. 



Fruit. Fruiting calkins spreading or drooping, I 5 inches 

 Long: capsules usually erect, ovoid, acute, shorter than or equal- 

 ing the slender pedicels: seeds numerous, white-hairy. 



Horticultural Value. Not procurable in New England nur- 

 series or from collectors ; its usefulness in landscape gardening 

 not definitely known. 



Plate XVI. Populus heterophylla. 



1. "Winter bin Is. 4. Scale of sterile flower. 



2. Branch with sterile catkin. 5. Branch with fertile catkin. 



3. Sterile flown-. 6. Fertile flower. 



7. Fruiting branch with mature leaves. 



Populus deltoides, Marsh. 



Populus monilifera, Ait. 

 Cottonwood. Poplar. 



Habitat and Range. In moist soil ; river banks and basins, 

 shores of lakes, not uncommon in drier locations. 



Throughout Quebec and Ontario to the base of the Rocky 

 mountains. 



Maine, not reported ; New Hampshire, restricted to the 

 immediate vicinity of the Connecticut river, disappearing near 

 the northern part of Westmoreland ; Vermont, western sec- 

 tions, abundant along the shores of the Hoosac river in Pownal 

 and along Lake Champlain (W. W. Eggleston) ; in the Con- 

 necticut valley as far north as Brattleboro {Flora of Vermont. 

 1900) ; Massachusetts, along the Connecticut and its tribu- 

 taries; Rhode Island, occasional; Connecticut,- occasional 

 eastward, common along the Connecticut, Farmington, and 

 Housatonic rivers. 



South to Florida ; west to the Rocky mountains. 



Habit. A stately tree, 75-100 feet in height; trunk 3-5 

 feet in diameter, light gray, straight or sometimes slightly 

 inclined, of nearly uniform size to the point of branching, 



