Adventitious Shoots 



with varnish. Both are dormant shoots, 

 having rested through the winter in their case 

 of down and scales. In the spring, obeying 

 the common law, they lengthen into branches, 

 while in the axil of their leaves other shoots 

 appear which have no protective envelope, 

 and develop at once. The vine and the 

 peach thus produce two generations in one 

 year : the one provided with scaly shoots 

 that have lived through the winter, and the 

 other by naked shoots which were only 

 formed in spring. The branches produced 

 by the latter give birth to scaly shoots, 

 which sleep through the winter and repro- 

 duce the same series of facts in the following 

 year. 



The axillary and terminal shoots belong to 

 the regular course of events, appearing on 

 every plant that lives for several years. But 

 when the plant is in danger, or that acci- 

 dentally the regular shoots are lacking or 

 insufficient, others will appear here and 

 there, even on the root itself, to revive the 

 sick plant and restore it to prosperity. These 

 accidental shoots are to the aerial portion 

 of the plant what the adventitious roots are 

 to that which is underground, and the peril 

 of the moment calls them into existence at 



77 



