Fraxinus 863 



27. Fraxinus dimorpha, Cosson et Durieu. N. Africa. See p. 884. 



Leaflets, seven to nine, about f inch long, ovate. Rachis with wide-spreading 

 wings. 



C. Branchlets minutely pubescent ; leaflets glabrous. 



28. Fraxinus Mariesii, J. D. Hooker. Central China. See p. 892. 



Leaflets five, coriaceous, about 2\ inches long, oval, stalked, crenately serrate. 



29. Fraxinus Bungeana, De Candolle. North China. See p. 891. 



Leaflets five to seven, membranous, about \\ inch long, mostly stalked, oval 

 or rhomboid, long-acuminate, irregularly serrate. 



30. Fraxinus raibocarpa, Regel. Turkestan. See p. 886. 



Leaflets five to seven, oval, entire, about i|- inch long; upper leaflets sub- 

 sessile, lower leaflets stalked. 



D. Branchlets, leaf -rachis, and leaflets pubescent. 

 * Leaflets distinctly stalked. 



31. Fraxinus Biltmoreana, Beadle. United States. Seep. 905. 



Leaflets seven to nine, oval, about 4 inches long, white beneath ; rachis very 

 slightly grooved. 

 3 1 a. Fraxinus caroliniana, Miller. 1 S.E. United States, Cuba. Seep. 912. 



Leaflets five to seven, oval, about 3 inches long, green beneath, rounded or 

 broadly cuneate at the base ; rachis with a well-defined but shallow groove. 



* * Leaflets stalked, sessile, or sub-sessile. 



32. Fraxinus pennsylvanica, Marshall. N. America. See p. 908. 



Leaflets, seven to nine, lanceolate, 4 to 5 inches long, green beneath, pubescent 

 on both surfaces, long-acuminate, tapering at the base ; rachis densely white- 

 pubescent, and with a narrow, shallow groove. Buds reddish pubescent. 



33. Fraxinus pubinervis, Blume. Japan. See p. 896. 



Leaflets five to seven, lanceolate, 3 to 4 inches long, glabrous above, green 

 and pubescent beneath, acuminate, tapering at the base ; rachis grooved, with 

 pubescence densest at the nodes. Buds greyish pubescent. 



* * * Leaflets sessile or sub-sessile. 



34. Fraxinus oregona, Nuttall. Western United States. See p. 910. 



Leaflets seven to nine, oval, 3 to 4 inches long, green beneath, shortly 

 acuminate, entire or obscurely crenate in margin. 



35. Fraxinus velutina, Torrey. Texas to California. See p. 912. 



Leaflets three to five, about 1^ inch long ; lateral leaflets variable in shape 

 and serration, terminal leaflet obovate. 



36. Fraxinus xanthoxyloides, Wallich. Baluchistan, Afghanistan, N.W. Himalayas. 



See p. 885. 



Leaflets, five to nine, about f inch long, ovate. Rachis with wide-spreading 

 wings. 



1 Cf. No. 16. 



