172 THE FIRST BOOK OF BOTANY. 



When leaves are neither folded nor rolled in the 

 bud, they are said to be FLAT. 



ARRANGEMENT OF LEAVES IN THE BUD. 



By the arrangement of the leaves in a bud is 

 meant the ways in which they are placed in relation 

 to each other. For instance, Fig. 285 shows what 

 is called the equita/nt arrangement. 



FIG. 285. 



EQ'UITAOT. "When opposite con duplicate leaves 

 overlap each other at the base, as seen in Fig. 285, 

 the arrangement is called equitant. 



Leaves are always arranged in one or other of the 

 two ways called valvate and imbricate. 



The YAL'VATE arrangement is seen when the edges 

 of corresponding leaves barely touch each other. 



The IM'BKICATE arrangement is seen when the 

 edges of the leaves overlap each other. Fig. 285 

 shows an imbricate arrangement. 



