THE TREE AND ITS FORMS. 



23 



New England and New York, and becomes more prominent westward 

 through southern Pennsylvania and West Virginia. In northern 

 Ohio and Indiana, in the lower Ohio Valley, and in the river bottoms 

 of the lower Mississippi Valley it is the commonest of the hickories. 

 Since most of the remaining virgin hickory is in the lower Mississippi 

 Valley, and since cutting is now especially heavy there, it is probable 

 that most of the hickory on the market is shagbark. 



Nutmeg hickory. 



Bitternut. 



FIG. 10. Ranges of the pecan hickories. The light-shaded areas show the botanical ranges; the 

 darker areas, the commercial ranges. 



The commercial distribution of pignut corresponds closely to that 

 of shagbark, except that it extends farther toward the coast in the 

 southeast. West of the Mississippi it is represented chiefly by the 

 pale-leaf hickory (villosa) y which, because of its small size, is as yet but 

 little cut. Pignut is most prominent in the Cumberland Mountains 

 of Tennessee, Kentucky, and West Virginia, and on the hills of the 

 Ohio Valley. In these regions it furnishes most of the cut. 



Mockernut is characteristically a southern species. It is fairly com- 

 mon in southeastern Pennsylvania and New Jersey, and becomes more 



