4 8 



BOTANY FOR BEGINNERS 



CHAP. 



The arrangement of the individual leaf in the bud is shown 

 below in a tabular form : 



i. If the leaf is not folded at all, the vernation \^ plane. 



2. If the leaf is folded along the mid-rib, it is conduplicate, 

 e.g.) Bean. 



3. If the leaf is folded into a number of longitudinal or 

 oblique pleats, it is plicate, e.g., Beech. 



4. If the leaf is folded in all directions, it is crumpled, e.g., 

 Poppy. 



5. If the leaf is folded inwards towards the mid-rib, it is 

 involute, e.g., Violet. 



FIG. 67. Transverse sec- 

 tion of leaf-bud of Ash. 

 (X 7 -) 



FIG. 68. Transverse 

 section through leaf- 

 bud of Beech. (X6.) 



6. If the leaf is folded backwards towards the mid-rib, it is 

 revolute, e.g.", Dock. 



7. If the leaf is folded up from one side to the other, it is 

 convolute, e.g., Banana. 



The arrangement of the several leaves in the bud is shown 

 below : 



i. If the leaves in a bud just touch by their margins, the 

 vernation is valvate. 



2. If the leaves in a bud overlap each other, it is imbricated. 



3. If the leaves in a bud overlap each other in regular order, 

 it is twisted or contorted. 



4. If the outer conduplicated leaves in a bud enclose those 

 within in regular order, it is equitant. 



