Quercus 1 2 1 9 



surfaces, turning scarlet in autumn, 3 to 6 in. long, 2\ to 4 in. broad. Buds 

 \ to \ in. long, whitish pubescent in their upper half. 



16. Quercus palustris, Muenchhausen. United States. See p. 1250. 



Leaves with conspicuous axil-tufts, turning scarlet in autumn, 4 to 6 in. 

 long, 2 to 4 in. wide. Buds \ in. long, pale brown, glabrous. 



17. Quercus Sckneckii, Britton. United States. See p. 1251. 



Not distinguishable with certainty in the absence of fruit from Q. palustris. 

 **** Leaves ovate, with ten or more sharp triangular teeth or lobes. 



18. Quercus Aigilops, Linnaeus. Greece, Asia Minor. Seep. 1268. 



Leaves tomentose beneath, margin and bristles ciliate, 3 to 4 in. long, 1^ to 



2 in. broad. Branchlets tomentose. Buds with persistent stipules. 



C. Leaves serrate, each serration ending in a long projecting bristle or spine. 



19. Quercus serrala, Thunberg. Himalayas, China, Japan. See p. 1275. 



Branchlets glabrescent. Leaves oblong-lanceolate, with ten to sixteen pairs 

 of lateral nerves, each ending in a serration ; green and glabrous beneath, except 

 for slight axil-tufts ; 4 to 8 in. long, 1 to 2 in. wide. 



20. Quercus variabilis, Blume. China, Japan. See p. 1276. 



Similar to the last, but with leaves covered beneath with a dense white 

 tomentum. 

 31. Quercus Libani, Olivier. Syria, Asia Minor, Armenia. See p. 1274. 



Branchlets pubescent or glabrescent. Leaves lanceolate, with nine to twelve 

 pairs of lateral nerves, each ending in a serration ; wrinkled in margin, glabrous 

 beneath except on the midrib and nerves ; 3 in. long, in. wide. 



22. Quercus semecarpifolia, Smith. Himalayas. Seep. 1297. 



Branchlets stellate-pubescent. Leaves ' subevergreen, elliptical, with six to 

 ten pairs of lateral nerves, forking before reaching the spinose-serrate margin ; 



3 in. long, 2 in. broad. 



D. Leaves lobed or toothed, each tooth or lobe ending in a projecting short mucro. 

 * Axillary buds without persistent stipules. 



23. Quercus macedonica, De Candolle. Macedonia, Albania, Montenegro, Herze- 



govina, and south-eastern Italy. See p. 1273. 

 Branchlets with scattered pubescence. Leaves lanceolate, 2 in. long, sub- 

 sessile, broad and auricled at the base, with nine to twelve pairs of nerves each 

 ending in a serration ; margin wrinkled. 



24. Quercus glandulif era, Blume. China, Korea, Japan. See p. 1327. 



Branchlets glabrescent. Leaves obovate, 3 to 5 in. long, with eight to eleven 

 pairs of nerves, all but the lowest one or two pairs, ending in a mucronate 

 serration ; lower surface appressed pubescent, and usually glaucous. 



25. Quercus Turneri, Willdenow. A hybrid. See p. 1288. 



Branchlets stellate-pubescent. Leaves subevergreen, obovate, 3 to 5 in. 

 long, with five to eight pairs of nerves, all but the lowest one or two pairs, 



1 The leaves on old trees are entire or slightly undulate and without spines. 



