TREES 43 



gg-^Branchlets smooth 



h Leaflets without stalk,, buds 



black Black Ash 



hh Leaflets with stalk 



* Leaf scar concave on upper 



margin; leaflets pale below White Ash 



ii Leaf scar not concave; 

 leaflets bright green bofh 

 sides Green Ash 



cc Leaves simple 

 d Lobed 



e Leaf scars encircling twig, meeting in 



point Norway Maple (Parks) 



ee Leaf scars not encircling twigs 



/ Cleft between main lobes of leaf 



U-shaped; marginal teeth few Sugar Maple 



ff Cleft between main lobes V-shaped; 

 marginal teeth many 

 g Leaf very deeply cut; twigs 



green Soft Maple 



gg Leaf not deeply cut; twigs red Red Maple 



dd Leaves not lobed; pith streaked with 



red Flowering Dogwood 



aa Leaves only one at node, alternate 

 b Leaves compound 



c Leaf with three leaflets Hop Tree 



cc Leaf with more than three leaflets 

 d Twigs very stout, pithy 



e -Bark with diamond-shaped areas ap- 

 pearing as if made by pasting on strips 

 of paper; pith salmon Kentucky Coffee Tree 



ee Bark not showing conspicuous diamond- 

 shaped areas 

 / Leaf scars large, triangular; pith 



chocolate-brown Ailanthus 



ff Leaf scars V-shaped; pith yellow- 

 brown 



g Twigs velvety Staghorn Sumac 



gg Twigs smooth Smooth Sumac 



dd Twigs not very stout 



e Leaflets mostly broad at outer end, 

 oblanceolate 



/ Bark shaggy, with detaching flakes Shagbark Hickory 

 // Bark not shaggy 



g Leaflets 5-7 ; nut thick-shelled Pignut Hickory 



