406 Select Plants for Industrial Culture and 



Qnrcus macrocarpa, Michaux. 



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

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

 Requires better soil than many other oaks. The timber reg'arded 

 by some almost as good as that of the white oak ; it is heavy, hard; 

 strong and tough ; in contact with soil it is one of the most durable 

 among that of American oaks [B. E. Fernow], Accounts from 

 Canada are far less favorable to this wood. The bark contains 

 about 8 per cent, tannin, Circumferential stem-measurement after 

 22 years' growth 3| feet in Nebraska [Furnas], 



Quercus macrolepsis, Kotschy.* 



Greece. This evergreen oak also yields Valonia, being closely 

 allied to Q. Aegilops. A de Candolle unites with it Q. Graeca of 

 Kotschy. 



Quercus inagnolitolia. Nee. 



Mexico, in cooler mountain-regions^ From Nee's note it would 

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

 construct ovate cocoons eight inches long, consisting of a kind of 

 grey silk, which was there locally manufactured into stockings and 

 handkerchiefs. 



Quercus XVXong-olica, 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 is reared, as shown by Dr. Hance. Closely allied to this 

 Q. Griffithi (J. Hooker and T. Thomson), 



Quercus IVIuehlenberg ii, Eugelmann. 



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

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

 [Sargent]. 



Quercus pachyphylla, Kurz. 



The commonest Oak of Sikkim - Himalaya, at 7,000 10,000 

 feet. Acorns large, 3-seeded. A large evergreen tree. Wood 

 extensively used for planking, palings, shingles and other requisites 

 [Gamble]. 



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. 

 The wood is fine-grained, strong and tough; it is ornamental for 

 furniture on account of the strong development of medullary rays. 



