CHAPTER III. 



THE BUD continued. 



General characters reviewed Formation of bud Protective action 

 of bud-scales Number of leaves in bud Sizes of buds Shapes 

 of buds Buried buds Extra-axillary buds Accessory buds 

 Different kinds of buds on the same plant Various kinds of 

 bud-coverings General nature of bud-scales Terminal and 

 axillary buds Suppressed buds Bud- sections. 



A BUD, then, is the tip of a shoot surrounded by leaves, 

 and, whatever its apparent position may be, it has been 

 formed from the first shoot or plumule. Most buds as 

 seen on a developed plant are either terminal, that is at 

 the end of a twig or shoot, or lateral to that twig or shoot, . 

 and are usually produced in the axils of leaves, and in the 

 case of deciduous trees and shrubs in winter i.e. of plants 

 which cast their leaves the leaf-scar left by the fallen 

 leaf will be found just below the bud. These statements 

 are easily verified by examining a branch of Horse-chestnut, 

 Ash, Oak, Currant, Walnut, Maple, Lilac, Poplar, Fig, 

 Vine, &c. 



The formation of a bud depends especially on the fact 

 that the slowly-growing end of the shoot elongates less 

 rapidly than some of the leaves it has itself produced, and 

 these arch over the tip and protect it. 



