52 KEY FOR THE IDENTIFICATION OF TREES AND SHRUBS 





"both sides. .Green Ash 



Fraxinus pennsylvantca var. 

 lanceolata Sarg. 

 47. Terminal leaflet stalked, lateral 

 leaflet sessile, sharply serrate, 

 green on both sides. 



Black Ash 



Fraxinus nigra Marsh. 

 47. Leaflets sessile, sharply toothed, 

 dark green above, pale beneath. 

 European Ash 

 Fraxinus excelstorl,. 

 48. Leaflets 5-7, wedge-shaped: obovate 



Genus Aesculus . . . . 49 

 49. Leaflet doubly blunt-toothed, sessile, 

 buds sticky. . .Horsechestnut 



Aesculus Blppocastanum L. 

 49. Leaflet doubly sharp-toothed, stalked, 

 buds slightly sticky. 



Red-flowered Horsechestnut 

 Aesculus cornea Hayne. 

 50. Leaves once compound: only one series of 



leaflets to a leaf 51 



50. Leaves twice compound: some of the leaf- 

 lets cut to their midribs into a secondary 



series of leaflets 55 



51. Leaf lets small, even-pinnate: no terminal 

 leaflet, branching thorns on twigs and 

 trunk. Occasionally there are twice- 

 compound leaves on the same tree. 



Honey Locust 

 Gledttsla trlacanthos L. 

 51. Leaf lets odd-pinnate: having a terminal 



leaflet 52 



52. Leaf large, 12-40 inches long, 13-19 

 large leaflets, a few gland-tipped 

 teeth at bases of leaflets. 



Tree of Heaven 

 Allanthus glandulosa Desf . 

 52. Leaf about 12 inches long, leaf lets 

 ovate, entire, without spines. 



Schdlar Tree, Pagoda Tree 

 Sophora Japonlca L. 

 52. Leaf about 12 inches long, 5-25 oval 

 or oblong leaflets, stipules: pro- 

 jections at base of petiole, usually 



