TREES OF NORTH CAROLINA 81 



130. Acer pennsylvanicum L. Striped Maple. 



A small tree of the higher mountains, inhabiting 

 cool damp soil at elevations above 3000 feet. It is 

 easily distinguished by its reddish-green bark which 

 is striped with light lines, by the large three-lobed 

 leaves with very many small teeth and by the long 

 terminal panicles of drooping fruits. 



131. Acer spicatum Lam. Mountain Maple. 



A very small tree or shrub growing only at high 

 altitudes in the mountains. It is most like the Strip- 

 ed Maple, but is easily distinguished by the pubescent 

 twigs, the upright panicles of flowers and fruits and 

 the lack of stripes on the bark. 



132. Acer Negundo L. Ash-leaved Maple, Box Elder. 



A rather small, dioecious tree of sandy river banks 

 and bottoms, rather common in the Piedmont, ex- 

 tending into the lower mountain valleys, and along 

 the larger rivers in the coastal plain. The leaves 

 have three leaflets, which somewhat resemble those 

 of an ash ; fruits hanging in elongated clusters. This 

 maple is wide-spreading and of very rapid growth, 

 and for quick shade in lawns is much better than 

 the more often-used 'Silver Maple or Carolina Poplar. 

 Dates of flowering: March 15, 1903; March 25, 

 1909; March 28, 1910; April 15, 1915; April 7, 

 1916. Examples: trees at Scott's Hole. 



