BUDS 



126 



136. Vernation. — Procure a considerable niunber of buds which 

 are just about to burst, and others which have begun to open. Cut 

 each across with a razor or very sharp scalpel ; examine first with 

 the magnifying glass, and then with the lowest power of the micro- 

 scope. Pick to pieces other buds of the same 

 kinds under the magnifying glass, and report 

 upon the manner in which the leaves are 

 packed away. 



The arrangement of leaves in the 

 bud is called vernation; some of the 

 principal modes are shown in Fig. 



ax. 



Fig. 85. —A slowly grown Twig 

 of Cherry, 3 inclies long and 

 about ten years old. 



The pointed bud 2 is a leaf -bud ; 

 the more obtuse accessory 

 buds /, / are flower-buds. 



Fig. 86. 



B, a twig of European elm ; A, a longitudi- 

 nal section of the buds of B (considerably 

 magnified) ; ax, the axis of the bud, which 

 will elongate into a shoot ; so, leaf-scars. 



In the cherry the two halves of the leaf are folded 

 together flat, with the under surfaces outward ; in the 

 walnut the separate leaflets, or parts of the leaf, are folded 



