Naturalisation in Extra-Tropical Countries. 



Quercus cornea, Loureiro. 



China. An evergreen tree, at length 40 feet high. Acorns used 

 for food. To this species is closely related 0. rotundata (Blume) 

 from Java. 



Quercus corrng-ata, Hooker. 



Mexico. Attains a height of about 80 feet. The acorns are as 

 large as those of Q. Skinneri. 



Quercus cuspidata, Thunberg. 



Japan. A magnificent evergreen oak, grand in its proportions ; 

 bears acorns in bunches or strings, of very sweet taste when baked 

 like chestnuts, but only of small size [F. C. Christy]. These acorns 

 boiled or roasted, are regularly sold in Japan for food [Rein]. 



Quercus cyclophora, Endlicher. 



Malacca and Penang. but not reaching higher elevations than 

 3,000 feet. Noted here as one of the tallest of all Oaks, to 150 feet, 

 and as producing acorns fully If inches broad. 



Quercus densiflora, Hooker and Arnott.* 



Californian Chestnut-Oak. A large evergreen tree of beautiful 

 outline, dense foliage and compact growth. Stem-diameter finally 

 to 5 feet. Very hardy, having withstood the severest winters at 

 Edinburgh with a temperature of F. [Gorlie]. Bark very 

 valuable for. tanning ; wood however subject to rapid decay 

 [Prof. Bolander.] For fuller information on West-American 

 oaks refer to Kellogg and Green's illustrated publication, 1889. 



Quercus dentata, Thunberg.* 



Manchuria, Northern China, Japan. This is one of the species, 

 on which the Oak-silkworm (the Yama Mayon) lives. Franchet 

 and Savatier enumerate 22 distinct species of oaks as indigenous to 

 Japan. 



Quercus dilatata, Lindley. 



Afghanistan and Himalaya up to 9,000 feet ; evergreen ; attains 

 a height of 80 feet. Gregarious, therefore likely naturalized with 

 facility. Wood durable, locally used for building, implements, 

 jampan-poles and other requisites [Gamble]. Foliage extensively 

 lopped for fodder of cattle, sheep and goats. The last remark 

 applies also to Q lannginosa (D. Don) of Nepal. 



Quercus Douglasii, Hooker and Arnott. 



The Blue Oak of California. Stem reaching 9 feet in circum- 

 ference [Brewer]. Resembles the white oak in the quality of its 

 timber, its wood being particularly used in wheelwrights' work. 



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