834 TREES OF NORTH AMERICA 



Leaves usually reduced to a single ovate or orbicular leaflet; flowers polyga- 

 mous. 4. F. anomala (F). 

 Branchlets terete. 



Leaflets 5-7, oblong-ovate; fruit oblong-elliptic to spatulate, often 3-winged, 



long-stipitate. 5 F. caroliniana (A, C). 



Leaflets 3-5, oblong; fruit lanceolate to oblanceolate, the body extending to the 



base of the fruit. 6. F. pauciflora (C). 



Body of the fruit nearly terete. 



Wing of the fruit terminal or slightly decurrent on the body. 

 Leaves and branchlets glabrous (tomentose in one form of 7). 



Leaflets sessile or nearly sessile 5-7 rarely 5, ovate to oblong-ovate, rarely 

 elliptic, acute or short-acuminate, glaucescent below. 



7. F. Standleyi (H). 

 Leaflets stalked. 



Leaflets 5-7, ovate to lanceolate, abruptly pointed or acuminate, usually 

 pale below. 8. F. americana (A, C) 



Leaflets usually 5, ovate to obovate, rounded or acute at apex. 



9. F. texensis (C). 



Leaves and branches pubescent; leaflets oblong-ovate to lanceolate, pale below; 

 fruit linear-oblong. 10. F. biltmoreana (A, C). 



Wing of the fruit decurrent to below the middle of the body. 



Leaflets 7-9, usually 7 ; leaves and branches pubescent (glabrous in one form of 12) . 

 Fruit 2'-3' in length. 11. F. profunda (A, C). 



Fruit l'-2|' in length. 12. F. pennsylvanica (A, E). 



Leaflets 3-5. 



Leaves and branchlets glabrous; fruit up to 1^' in length. 



13. F. Berlandieriana (C, E). 



Leaves and branchlets pubescent or glabrous; fruit not more than \' in 

 length. 14. F. velutina (F, H) 



Leaflets 5-7 v usually 7, the lateral generally sessile; leaves and branchlets pilose- 

 pubescent, rarely glabrous- 15. F. oregona (B, G). 

 Flowers without a calyx; leaflets 5-11 ; wing of the fruit decurrent to the base of the body. 

 Branchlets quadrangular; lateral leaflets short-stalked. 1C. F. quadrangulata (A, C). 

 Branchlets terete; lateral leaflets sessile. 17. F. nigra (A, C). 



1. Fraxinus cuspidata Torr. 



Leaves 5'-7' long, with a slender pale petiole sometimes slightly wing-margined, and 3-7 

 lanceolate or ovate-lanceolate long-stalked leaflets gradually narrowed at apex into a long 

 slender point, cuneate at base nearly entire or coarsely and remotely serrate above the mid- 

 dle with recurved teeth (var. serrata Rehd.), or with 3-5, rarely 7-foliolate leaves, with 

 broader often ovate entire leaflets occasionally with simple leaves at the base of the branch- 

 lets (var. macropetala Rehd.); slightly puberulous when they unfold on the lower surface, 

 and at maturity thin, dark green above, paler below, 1|'HH' long and i'-f wide, with a 

 pale midrib and obscure veins; petiolules slender, sometimes nearly 1' in length. Flowers 

 perfect, extremely fragrant, appearing in April, in open glabrous panicles 3'-4' long and 

 broad, terminal on lateral leafy branchlets developed from the axils of leaves of the previous 

 year, calyx cup-shaped, tV long, with acute apiculate attenuate teeth of unequal length, 

 deciduous, corolla f long, thin and white, divided to below the middle into 4 linear-oblong 

 lobes pointed at apex, and much longer than the nearly sessile oblong long-pointed anthers 

 ovary 2-ceIled, with a thick 2-lobed nearly sessile stigma. Fruit elliptic to oblong-obovate, 

 1' long and \' wide, the wing round and slightly emarginate at apex, and decurrent nearly 

 to the base of the flat nerveless longer body. 



A tree, rarely 20 high, with a short trunk 6'-8 ; in diameter, and slender terete branch- 

 lets light red-brown when they first appear, soon becoming darker and marked by scattered 



