THE ROOT. 61 



character of the soil itself and the amount of moisture and 

 organic matter in it. 



97. Buds. — New shoots may be formed by the roots, either 

 as a result of injuries, or normally. In a partially developed 

 form, these constitute huds (see ^ loi ). Whether ibrmed 

 as a result of injuries or normally, they are known as adven- 

 titious buds. The^' arise in the same pjlaces and develop in 

 the same wav as lateral roots ; that is, they are endogenous, 

 and, as they continue to grow, burst through the cortex. 

 The shoots so produced grow in the normal manner. Very 

 rareh' the grooving point of the root, casting off the root- 

 cap, becomes itself the growing point of the shoot. This 

 alteration is usually the result of artificial reversal of the posi- 

 tion of the root, being brought about m some potted plants 

 by turning them upside down. 



