\-2-2 iMi.r.ii Mamai. 



•V Lcartt'ls nxatc ti> oxate lanceolate; l)ase usuall> trun- 

 cate or rounded, unsynnnetrical; upper surface dark 

 yellow ijreen. soft jiubescent beneath : calyx lar^e. 



/'. profunda. 



0. Leaflets ovate, ovate-lanceolate, or lanceolate, usually 

 acute at the base ; calyx minute, (i. 



C). Leaflets pale beneath; ovate to ovate lanceolate. 7-11 ; 



wing of samara terminal or nearly so. P. hUtmoreana. 

 i'K l,eaflets gr^'en or greenish beneath, ovate-lanceolate to 



lanceolate, •'» — !) ; samara \\\\h a decurrent wing. 



/'. fiouisylvanica. 

 7. Leaflets pale beneath, ovate to ovate-lanceplate, entire" 



or indefinitely serrate, abruj^tly acute or acuminate. 



glabrous or somewhat pubescent ; wing of samara 



terminal. P. auiericana. 



7. Leaflets green on both sides, glabrous or somewhat 

 pubescent, usually serrate, lanceolate to ovate-lanceo- 

 late, acuminate; wing of samara decurrent on the sides 

 of the slender body. P. lanccoJatit. 



1. Fraxinus quadrangulata Mx. [>lue Ash. A large 

 tree with 4-sided or 4-winged twigs. Leaflets 7-11, ovate, 

 oblong, or lanceolate, acuminate, green on both sides, sharply 

 serrate or serrulate: samara linear-oblong or cuneate, winged 

 all around, parallel-nerved, the body extending more than 

 half way to the apex. The inner bark furnishes a blue dye. 

 Wood heavy, hard and valuable : used for flooring, carriage- 

 making, etc. Ont., Minn; and Mich, to Ala.. Iowa and Ark. 



■I. Fraxinus nigra Marsh. Black Ash. .\ large tree. 

 Leaflets 7-11 glabrous, green on both sides, sessile, oblong- 

 lanceolate, long acuminate, sharply serrate or serrulate; 

 samara oblong or linear-oblong, parallel-nerved, the body flat, 

 winged all a-round and extending to or beyond the middle. 

 Wocd heavy, soft, dark brown, used for barrel-hoops, baskets, 

 cabinet-work, and interior finish. Tn swamps and wet soil. 

 Xewf. to Man.. Va., and Ark. 



8. P rax in us excelsior L. European Ash. A fine 

 hardy tree with bright gre^n leaves. Samara flat, linear- 

 oblong. W'eeping varieties are in cultivation. Xative of 

 Europe. 



