BUDS AND BRANCHES. 

 Pig. 12. 



65 



ix 



A year's growth of the horse-chestnut branch, crowned with a terminal hud; a, 

 scars left hy the hud-scales of the preyious year; 6, leaf-scars, with round dots, show- 

 ing the points of issue of the fasciculi, or bundles of woody fibre which form the 

 petiole ; Cy axillary huds, developed at the base of the petiole of the fallen leaves. 



and the leaves themselves developed in a rudimentary state, 

 assume a scale-like appearance, and overlap each other symme- 

 trically in accordance with their natural arrangement on the 

 stem. The formation of buds is the natural result of the 

 cessation of the growth of the internodes, and the partial 

 development of the leaves at the nodes. 



That the scales of buds are leaves in an imperfectly formed 

 or rudimentary state, is evident from the fact that they are the 



