890 ARBORETUM ET FRUTICETUM BRITANNICUM. 
App. ii. Oaks of Africa, Asia Minor, and Persia, only partially 
introduced. 
Q. obtécta Poir. Dict. Encye. Suppl. 2. p. 218., N. Du Ham. 7. p. 163. 
— A very doubtful species. 
Q. infectoria Oliv. Voy. dans ’Emp. Ottom. 
1. p. 258. t. 14. Q. cariénsis Willd.; Chéne a 
Galles, Fr.; Farber Eiche, Ger. (Our jigs. 
1638. and 1639. ; the first from Olivier, and he 
second from Du Hamel.)—Leaves ovate-oblong, 
very smooth on both sides, 
deeply toothed, somewhat 
sinuated, deciduous. Fruit 
sessile ; ripening the second 
year. Calyx tessellated. 
Nut elongated, nearly cy- 
lindrical. (Sm.) A decidu- 
eek: “Gane ous shrub. Turkey and ( 
* @emmeen® Greece, and the North of 1639. Q. infectiria, 
Africa. Height 4 ft. to 6 ft. Introduced ?. 
The leaves are about 1 or 14 inches long, bright green, smooth on both 
sides, but paler beneath ; their serratures are deep and broad, not acutely 
pointed. Fruit solitary, nearly sessile. Cup slightly downy; its scales not 
very distinct. Acorn two or three times longer than the cup, smooth, nearly 
cylindrical. Olivier observes that this plant, besides producing the galls of 
commerce, bears a number of different kinds of this 
excrescence, which are neglected as useless. The de- 
scription and figures of these galls, and of the insects 
which cause their production, are in our first edition. 
Q. Libani Oliv. t. 49. f. 2. (our fig. 1640.), Q. rigida 
Willd. (fig. 2104. in p.1110,), Q. ibérica Stev., Q. cas- 
tanezfolia C. A. Meyer (Plante Caspico-Caucasice, 1. 
p.9. t. 1.; and our fig. 1641.), and Q. mongdlica Fisch, 
are described in our first edition. 
Q. mannifera Lind]. Bot. Reg. Chron., 1840, No. 72., 
and also Q. mongélica, appear to be nothing more than 
varieties of Q. sessilifléra. The latter produces the Koor- 
distan manna, a sweet glutinous substance, which oozes 
from the upper surface of the leaves during the hottest months of the year. 
(See Penny Cyc., art. Quercus, p. 215. ; and Q. sessilifléra, in our p. 851.) 
16:0. Q. Libani. 
1641. @. castaneetolia. 
