BOTANY OF THE PLANT. 



11 



are now rare, the constant search for the plants tending 

 to prevent their full development. Such sizes and 

 weights are, however, possible in cultivated beds. 



FIG. 6. THREE AND FOUR YEAR OLD ROOTS. 



a, Bud ; b, scar. 



When young, the root is shaped and colored like a 

 little parsnip, but usually becomes more or less forked 

 and darker in color as it grows older. Its size is largely 

 governed by the supply of food, exposure and other con- 



