DEVELOPMENT OF BUDS. 



99 



top, arising higher and higher, as it unfolds its axis into the 

 joints (called nodes and internodes) of the stem, its outei 

 scales into leave*, and is itself continually renewed from 

 within. Thus the ascending stem, or axis, is always termi- 

 nated by a bud. 



Fig. 329. Bud of Currant unfolding, the scales () gradually becoming leaves. 

 Fig. 830. Bud of Tulip-tree, the scales unfolding into stipules (). 



203. Soon other buds appear. There is one in the axil of 

 each leaf. So long as the terminal bud only is developrd, 

 the plant grows up a simple stem. But by the growth of 

 these axillary buds, if they grow at all, branches are pro- 

 duced ; and these branches, from their axillary buds, produce 

 hranchlets, and so on. 



202. What do you understand by the nodes and internodes f How Is ,lo 

 ids always terminated? 

 20& In what case will the stem be simple? How are branches pioduoA 



