278 SELECT PLANTS FOR INDUSTRIAL CULTURE 



Quercus dentata, Thunberg.* 



Japan. This is one of the species on which Oak Silkworm (the 

 Yama Mayon) lives. 



Quercus Douglasii, Hooker and Arnott. 



California. The Blue Oak. Stem to 7 feet in circumference 

 (Brewer). Resembles the White Oak in the quality of its timber. 



Quercus dilatata, Lindley. 



From the Himalayas to Afghanistan, at elevations from 4,500 to 

 10,000 feet. Height up to 100 feet ; crown very shady, lopped for 

 sheep fodder. The hard, heavy, and durable wood much used for 

 building purposes and implements (Madden). 



Quercus falcata, Michaux. 



North America. A tree attaining a height of 80 feet, with a stem 

 4 feet in diameter. Foliage deciduous. It lives in dry sandy 

 ground, and can also be utilised for sea-coasts. Produces an 

 excellent tanners' bark, and also galls for superior ink. The wood 

 used for staves, but not durable for structures. 



Quercus Garry ana, Douglas. 



North- West America, along the coast between the 38th and 50th 

 degrees. A gigantic tree, 100 feet high or more, with a stem 6 

 feet in diameter. This, with Q. Douglasii, and Q. lobata, passes as 

 Californian White Oak. The timber is remarkably pale for an 

 Oak, hard and fine-grained, of great strength and durability, well 

 suited for almost every kind of construction for which the White 

 or the European Oak is employed. The acorns, being sweet and 

 agreeable, form an excellent mast for hogs. 



Quercus glabra, Thunberg. 



Japan. The acorns are consumed for food by the Japanese. 



Quercus glauca, Thunberg. 



The Kashi of Japan. A large and truly magnificent evergreen tree, 

 80 feet high. The hard and close-grained wood is chosen there for 

 select tools, particularly planes and utensils (Christy). 



Quercus Ilex, Linne. 



The Holly Oak of South Europe ; extending also to Algeria and to 

 the Himalayas, which it ascends up to about 10,000 feet. Height 

 of tree 50 feet. Wood in use for ship-building, bark for tanning. 

 From varieties of this tree are obtained the sweet and nourishing 

 Ballota and Chestnut acorns. 



