22 KEY FOB THE DETERMIN ATION OF THE 



(c) Leaves toothed, oblong, small, 2 inches long; 

 buds small and acute, or large, round, and 

 flattened from the top ; flowers seeming soli- 

 tary, large and white ; fruit a cluster of red 



berries; twigs purple or green, (p. 63.) Dogwood. 



(d) Leaves oblong, 1-J- to 3 inches long, toothed 

 or entire-margined; buds, long-stalked, rusty- 

 scurfy ; flowers white, small, in flat- topped 

 clusters; fruit black or bluish, containing a 

 seed grooved on the side ; small trees or 



shrubs several kinds of - Black Haws 1 . 



(e) Leaves broader and short, 3 to 5 lobed ; fruit 



with wings. — Maples. (The three first fre- 

 quently grown as shade trees.) 



Buds red, blunt ; leaves white beneath, 



generally with 3 shallow lobes ; very 



common; wings of fruit finch long. (p. 52.) Red Maple. 



Buds red, blunt ; leaves white beneath 

 with 3 to 5 lobes; wings of fruit 



more than 1 inch long ; cultivated, (p. 51.) White Maple. 



Buds brown, acute ; leaves over 2 inches 

 wide, green or white beneath with 3 

 lobes, each lobe 3-notched ; large trees 

 with rough, hard, shaggy bark ; fruit 

 li inch in length, (p. 50.) Sugar Maple. 



Leaves as in the sugar maple, but only 

 half the size ; fruit less than one inch 

 long ; small trees with smooth gray 

 bark, branching near the ground ; 

 rocky river banks in the counties 

 drained by the Yadkin and Catawba 

 rivers White-bark Maple' 



Small trees of the high mountains, 



above 3,000 feet, with striped branches, 



green twigs and large, smooth, 3-lobed 



leaves ; long, stalked, purplish buds. (p. 49.).. Striped Maple. 



Small trees of the highest mountains, 



over 4.000 feet, with purplish twigs and 



3-lobed leaves, velvety beneath, (p. 48.) Mountain Maple. 



(4) LEAVES SIMPLE AND ALTERNATE OR SCATTERED ALONG THE TWIG. 



(a) Leaves mostly rather large, 3 or more inches 

 long, nearly as broad as long, more or less 

 heart-shaped. 



(1) Small trees ; leaves smooth and with 



entire edges; fruit a pod; flowers in 



early spring, bright red. (p. 57.) Redbud. 



(2) Larger trees, with leaves triangular, 



smoothish, finely toothed on the mar- 

 gins ; buds resinous when crushed.— 

 Cottonwood's. 



Trees of eastern swamps ; leaves 



i Species of Viburnum. 



2 Acer leucoderme, Small, Bui. Tor. Bot. CI., xxil, u, 367. 



