WINTER -KILLED BUDS 73 



tinguished in winter except by their position 

 upon the tree. In the walnuts and hickories, 

 the pistillate flowers are co- terminal, but the 

 staminate flowers arise from lateral winter 

 flower -buds on the last year's growth. 



If the reader has followed the discussions in 

 this chapter he will have derived a general 

 knowledge of the external features of fruit -spurs 

 and fruit-buds. It now remains for him to ver- 

 ify and expand his knowedge by examining the 

 plants themselves. It will not be profitable to 

 detain him longer here. It will be necessary only 

 to answer the question which 

 he will be sure to ask, how 

 to tell when fruit -buds are 

 winter -killed. It is generally 

 the embryo flowers which are 06. Apricot buds live, 

 killed by cold, although, in and dead - Lon ^- 



. . , . , _ tudinal section. 



severe winters, the entire bud 

 of the mixed fruit -bud type 

 may be killed, so that the 

 bud makes no attempt to swell 

 on the approach of spring. The 

 normal color of the interior of 6L Peach buds ' live 



and dead. Cross 



fruit -buds is green or greenish. section. 



When the interior is black or 

 very dark brown, it is generally safe to infer that 

 the bud is dead. Figs. 66 and 67 illustrate dif- 

 ferences between live and dead buds, the dead 

 buds being on the right in each case. It should 



