BUDS 



lai 



132. Nature of Bud-Scales. — The 



fact that the bud-scales are in certain 

 cases Aerely imperfectly developed 

 leaves or leaf-stalks is often clearly 

 manifest from the series of steps con- 

 necting the bud-scale on the one hand 

 with the young leaf on the other, which 

 may be found in many opening buds, 

 as illustrated by Fig. 80. In other 

 buds the scales are not imperfect leaves, 

 but^the little appendages (stipules, Figs. 

 98, 99) which occur at the bases of 

 leaves. This kind of bud-scale is 

 especially well shown in the magnolia 

 and the tulip tree. 



133. Naked Buds. — All of the buds 

 above mentioned are winter buds, capa- 

 ble of living through the colder months 

 of the year, and are scaly buds. 



In the herbs of temperate climates, 

 and even in shrubs and trees of tropical 

 regions, the buds are often naked, that 

 is, nearly or quite destitute of scaly 

 coverings (Fig. 81). 



Make a study of the naked buds of any 

 convenient herb, such as one of the common 

 " geraniums " (^Pelargonium), and record what 

 you find in it. 



134. Position of Buds. — The dis- 

 tinction between lateral and terminal 

 buds has already been alluded to. 



I 



I 



Fio, 81. —Tip of Branch 

 of Ailanthus in Winter 

 Condition, showing 

 very Large Leaf-Scars 

 and nearly Naked Buds. 



