DD. Leaves green beneath. 



(F. lanceolata) GREEN ASB 

 CC. Buds black; leaflets sessile. 



(F. nigra) BLACK ASK 

 BB. Branchlets, petioles, and leaf linings downy. 



C. Twigs slender; keys very long and slender. 



(F. Pennsylmnica) RED ASH 

 CC. Twigs stout; leaves pale green. 

 D. Trunk bulging at base. 



(F. pro/undo) PUMPKIN ASH 



230 



