890 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



1638. Q. infectoria. 



1639. Q. infectoria. 



A pp. ii. Oaks of Africa, Asia Minor, and Persia, only partially 



introduced* 



Q. obtectaPoir. Diet. Encyc. Suppl. 2. p. 218., N, Du Ham. 7. p. 163. 



A very doubtful species. 



Q. infectoria Oliv. Voy. dans 1'Emp. Ottom. 

 1. p. 253. t. 14. Q. cariensis Willd. ; Chene a 



Galles, Fr. ; Farber Eiche, Ger. (Our fgs. 



1638. and 1639. ; the first from Olivier, and the 



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. (5w.) A decidu- 

 ous shrub. Turkey and 

 Greece, and the North of 



Africa. Height 4 ft. to 6 ft. Introduced ?. 



The leaves are about 1 or 1^ 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/g. 1640.), Q. rigida 



Willd. (/g.2104. in p. 1110.), Q. iberica Stev., Q. cas- 



taneaefolia C. A. Meyer (Plantae Caspico-Caucasicae, 1. 



p. 9. t. 1. ; and our^g. 1641.), and Q. mongolica Fisch. 



are described in our first edition. 



Q. mannifera Lindl. Bot. Reg. Chron., 1840, No. 72., 



and also Q. mongolica, appear to be nothing more than 



varieties of Q. sessiliflora. 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. sessiliflora, in our p. 851.) 



1641. y. 



