

in Extra-Tropical Countries. 315 



Quercus lancifolia, Roxburgh (not Chamisso nor Bentham). 



A tall evergreen timber-tree of the Himalayas. Wood valued for 

 its durability; its medullary rays exceedingly fine (Brandis). 



Quercus lobata, Ne'e. 



California. The Sacramento White Oak. A tree finally about 

 150 feet high, with a stem six feet in diameter, with wide-spreading 



, branches, which often bend to the ground. Hardy in Middle Europe 

 (C. Koch). The wood is brittle when green, but hard and tough 

 when seasoned; its value has been much underrated (Gibbons). The 

 acorns of this oak used to form a large proportion of the winter-food 

 of the aboriginal inhabitants of North -California. 



Quercus lyrata, Walter. 



The Overcup-Oak of the South-Eastern States of North-America, 

 extending from South-Illinois to Florida and Louisiana. A tree of 

 majestic size, with a stem to four feet in diameter. Lately recom- 

 mended as valuable for timber-cultivation, especially in wet ground. 



Quercus macrocarpa, Michaux. 



The Burr-Oak of Eastern North-America. Tree to about 70 feet 

 high; stem-diameter sometimes 8 feet. . Hardy at Christiania. The 

 timber regarded by some almost as good as that, of the white oak. 

 The bark contains about 8 per cent, tannin. Circumferential stem- 

 measurement after 22 years' growth 3J feet in Nebraska (Furnas). 



Quercus macrolepsis, Kotschy.* 



Greece. This evergreen oak also yields Valonia, being closely 

 allied to Q. aegilops. A. de Candolle unites it with Q. Grseca of 

 Kotschy. 



Quercus magnolifolia. Ne'e. 



Mexico, in cooler mountain-regions. From NeVs note it would 

 appear, that he saw on this oak the numerous caterpillars, which con- 

 struct ovate cocoons eight inches long, consisting of a kind of grey 

 silk, which was there locally manufactured into stockings and 

 handkerchiefs. 



iQuercus Mongolica, Fischer.* 



Manchuria and Northern China. It is on this tree and on Q. 

 serrata and Q. dentata, that the silk-insect peculiar to oak-trees 

 mainly, if not solely, is reared, as shown by Dr. Hance. 



Quercus Muehlenbergii, Engelmann. 



Middle and Eastern States of North-America. A middle-sized 

 tree; its wood compact, strong, durable for posts and railway-ties 

 (Sargent). 



Quercus palustris, Du Roi. 



, The Pin-Oak or Marsh-Oak of South-Eastern North- America. 

 Hardy at Christiania. Height at length 80 feet; of quick growth. 



