THE OPENING OF THE BUDS, CONTINUED 55 



is, the axis has elongated considerably since the 

 opening of the bud. A quince flower is drawn in 

 Fig. 53. This, too, is borne upon a leafy shoot 

 of the season. (The pupil should now explain 

 why this shoot is said to be of the current sea- 

 son's growth.) Now let the pupil examine the 

 flower-clusters and shoots of grapes, raspberries, 



Fig. 54. 

 Twig of quince. 



blackberries and walnuts. We have already found 

 (49) that some fruit-buds are simple and others 

 mixed. We now find that there is still a third 

 class, those which may be called co-terminal, be- 

 cause they terminate the axial growth of the 

 season, and thereby cause a diffuse or deter- 

 minate growth of the plant. 



56. We can now interpret the winter twigs of 



