KEY FOR THE IDENTIFICATION OF TREES AND SHRUBS 51 



42. Leaf large, 5-6 Inches long, 

 flower bract without stalk; 

 sessl le. 



American Basswood 

 Til la amerlcana L. 

 42. Leaf large, 4-5 inches long, 

 thick, smooth, dark green 

 above, grey hairs beneath. 

 Downy Basswood 

 Tllla neilecta Spach. 

 42. Leaf 2J-4 inches long, 

 flower bract stalked. 

 European Linden 

 Tllla europaea L. 

 4 2. Leaf 2-4 inches long, 



lustrous above, pale green 

 and smooth beneath. 

 Crimean Linden 

 Tllla euchlora K. Koch. 

 42. Leaf small, 1^-2 i inches 

 . long, often broader than 

 long, flower bract stalked. 

 Little Leaf Linden 

 Tllla cordata Mill. 

 43. Compound leaves (not their leaflets) opposite 



one another on the twig 44 



43. Compound leaves alternate on the twig 50 



44. Leaf lets set along a central stalk or mid- 

 rib like the pinnae of a feather: 



plnrtately compound 45 



44. Leaf lets radiating from the tip of the 

 petiole like fingers from the palm: 



palmately compound 48 



45. Leaf odd-pinnate: the paired leaflets 



tipped by a single leaflet. ....... 46 



46. Leaf lets 3 or 5> margins with a few 

 large teeth,... See #6. 



Box Elder 

 , Acer Neiundo L. 

 46. Leaf lets 5-11. .Genus Fraxlnus .... 47 



47. Leaflets stalked, inconspicuously 

 serrate dark' green above, light 

 beneath . . .White Ash 



Fraxlnus amerlcana L. 

 47. Leaflets stalked, margin entire 

 or irregularly serrate, green on 



