LXX. CORYLA‘CEE! QUE’RCUS. 899 
1667. Q. xalapénsis. 1668. Q. glaucéscens. 
Q. glaucéscens Humb. et Bonp. Pl. Aquin. t.78., and our fig. 1668., 
Michx. N. Amer. Syl. p. 111.— Leaves on short footstalks, wedge-shaped, 
obovate ; entire at the base ; slightly repand and toothed towards the top ; 
glaucous, and quite glabrous. Fruit racemose. (Humb. et Bonp.) A very 
tall straight tree, quite glabrous ; younger branches angular. Introduced in 
1839. Horticultural Society’s Garden. 
Q. obtusata Humb. et Bonp. Pl. Aquin. t.76., and our fig. 1669., Michx. 
N. Amer. Syl. 1. p. 112.— Leaves oblong ; blunt at each end, unequal at the 
base, wavy at the margin, very veiny beneath, and somewhat downy. Fruit 
racemose. (Humb. et Bonp.) A native of New Spain, near Ario, at an 
elevation of about 6000 ft. (994 toises), A lofty tree, with a trunk from 3 ft. 
to 4 ft. in diameter, covered with a very thick deeply cracked bark. 
1669. Q. obtusata, 1670, @. pandurata. 
Q. pandurdta Humb. et Bonp. Pl. Aiquin. t. 77., and our jigs. 1670. and 
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