a I) < d' e 35 



g Samara obovate to spatulate; twigs terete. 



WATER ASH (F. Caroliniana) . 

 g 2 Samara elliptic to spatulate; twigs 4-sided. 



BLUE ASH (F. quadrangulata ) . 

 e 2 Samara with seed-bearing portion subterete; wing not extending to base; 



leaflets stalked; calyx present in fertile flower 



f Wing almost entirely terminal slightly if at all decurrent on body 

 g Leaves and branchlets glabrous or nearly so. 



WHITE ASH (F. Americana). 

 g 2 Leaves beneath and branchlets pubescent. 



BILTMOBE ASH (F. Biltmoreana). 



f~ Wing decurrent somewhat on sides of body but not to base 

 g Wing of samara spatulate 



h Branchlets and leaves glabrous or nearly so; leaves green beneath. 



GREEN ASH (F. lanceolata). 

 h 2 Branchlets and petioles velvety pubescent 

 i Samara less than 2 in. long; calyx small. 



RED ASH (F. Pennsylvania). 

 i 2 Samara mostly 2 in. long or more; calyx enlarged. 



PUMPKIN ASH (F. profunda). 



g 2 Wing of samara long-linear DARLINGTON ASH (F. Darlingtonii) . 



b 2 Palmately compound; fr. large coriaceous capsule; leaflets membranaceous and 

 usually 



