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

Leaflets, seven to nine, about 3 inch long, ovate. Rachis with wide-spreading wings.

C. Branchlets minutely pubescent ; leafiets glabrous.

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

Leaflets five, coriaceous, about 2½ inches long, oval, stalked, crenately serrate.

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

Leaflets five to seven, membranous, about 1½ 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 14 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. See p. 905.

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

31a. Fraxinus caroliniana, Miller.’ S.E. United States, Cuba. See p. 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 1½ 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 ¾ inch long, ovate. Rachis with wide-spreading wings.

1 Cf. No. 16.