90 MORPHOLOGICAL BOTANY. 



Section 1. KINDS OF THE BUD. 

 The bud varies according to its position, function, and 

 structure, so that it may be classified in three ways. 



1. KINDS OF THE BUD ACCORDING TO ITS POSITION. 



The bud is developed either at the end of a stem, or 

 Pig. 107. laterally upon a stem, root, or leaf ; the 



former kind is said to be Terminal, and the 

 latter, Lateral. (See Fig. 107.) 



KINDS OF THE BUD ACCORDING ( Terminal Bud. 

 TO ITS POSITION {Lateral Bud. 



The terminal buds and those lateral- 

 ones, which are developed regularly in the 

 axil of a leaf (as in all the flowering plants),, 

 or immediately below or by the side of a 

 leaf (as in many flowerless plants), are said 

 to be Normal. (See Fig. 107.) Those 

 lateral buds, which are developed irregu- 

 larly on older parts of stems, roots, or 

 leaves, are said to be Adventitious. 



2. KINDS OF THE BOD ACCORDING 

 TO ITS FUNCTION. 



According to its function, the bud is 

 either Vegetative or Reproductive. 

 Fia. 107.— Shoot As the vegetative bud produces foliage- 

 iSteraltadtTd kaves, it is also called the Leaf -bud. Some 

 a terminal one. reproductive buds produce flowers; while 

 others, as the globular buds of the Yamanoimo (Dioscorea 

 japonica) and Tsukuimo (D. Batatas) (Fig. 108), or the 

 bulb-like buds of the Oniyuri and Yamayuri, reproduce new 

 plants when they fall to the ground. Those of the former 



