CHAPTER III. 



THE BVD 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 th-e shoot elongates less 

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

 these arch over the tip and protect it. 



