VEGETABLES. 



251 



very deep and angular, of a dark green on the upper 

 surface, lightly downy underneath, cup almost shal- 

 low, very scaly, scales not adhesive, acorn round- 

 ish, a little depressed. Grows in almost all parts 

 of the union. This tree is called black oak, but 

 the true black oak is that of Catesby, growing in. 

 sandy soils, whereas the q. tinctoria grows only ia 

 rich soils, always removed from the sea. Bartram 

 measured some in CaroHna from six to eight feet 

 in diameter.... Those which Michaux saw on lake 

 Champlain were from three to four feet, but between 

 the high mountains of North Carolina, they are 

 double that diameter. 



[Mr. Michaux, jun. assures the author, that the 

 sinuosa and angulosa, which are marked as varieties 

 in his father's work, are the same. It is this variety 

 which Dr. Bancroft calls quercitron, asad which is 

 so useful as a yellow^ dye and tonic remedy. The 

 black oak is much used for shingles and rails.] 



14. Qu€7xus triloba^ downy black oak. 



Height from 55 to 65 feet, grows rapidly, bark 

 plain, leaves oblongly wedge formed, three lobed 

 at their tops, napped and ash-coloured underneath, 

 petiole much longer than that of the black oak» 

 Acorn globe-shaped and small. Grows throughout 

 the United States. 



The vegetation of this tree is very rapid, even ia 

 bad soils. After the annual firing of the woods in 

 America, suckers come out daring the first year, 

 the leaves of which do not resemble those of the full 

 grown tree. The lateral and intermediate divisions 

 are much more deep, and the divisions are more 

 numerous. 



