24 PRACTICAL FORESTRY. 



favorable conditions they deyeloi? into flowers, imder 

 others they merely produce leaves or their axis is extend- 

 ed into a branch. The terminal buds, which crown the 

 apex of a stem or the ends of branches, consist of un- 

 developed leaves, which only require an elongation of the 

 stem to allow for their full development. 



Axillary buds are those on the axil of each leaf, on 

 the small twigs or on the yearling stems of seedlings, 

 and from these the branches or lateral shoots are pro- 

 duced. 



Accessory buds are merely a multiplication of the axil- 

 lary bud, two, three, or even more in a cluster, but it is 

 seldom that more than one of the number develops, 

 the others remaining dormant. 



Adventitious buds are those which may be developed 

 from almost any part of the stem, and are in no Avay de- 

 pendent upon any natural location of leaves, joints, or 

 internodes. In some plants, like the willows, poplars, 

 hickories, and chestnut, they may appear from wounds 

 on the stems of large trees or from exposed roots, in 

 fact, the cells of some kinds of trees appear to possess 

 an inherent property, which enables them to become 

 buds or roots, according to the conditions under which 

 they are placed. Such plants are usually considered as 

 very tenacious of life, or as having great vitality, while 

 those of an opposite nature are far more difficult to prop- 

 agate, and require more care to cultivate. But this 

 may be due in part, at least, to our ignorance in regard to 

 Avhat they require for their full development, under arti- 

 ficial conditions. 



