HAIRS. 93 



The vegetative bud is one which produces foliage-leaves. 



The reproductive bud is one which is related to reproduction. 



The floioer-bud is one which produces floral leaves. " 



The fleshy bud is one which becomes an independent plant when it falls 

 to the ground. 



The scaly but is one which is protected by special scales. 



The naked bud is one which is not protected by special scales. 



The prcefoliation is the arrangement of leaves in the bud. 



The independent prcefoliation is the arrangement of each separate leaf in 

 the bud. 



The relative prafoliation is the arrangement of leaves in relation to each 

 other in the bud. 



The independent prafoliation is said to be flat when the leaves are not 

 folded in the bud. 



The independent prsefoliation is said to be folded when the leaves are 

 doubled or several times bent. 



The independent prsefoliation is said to be rolled when the leaves are 

 coiled in various ways. 



The relative prsefoliation is said to be valvate when the margins of 

 contiguous leaves touch without overlapping. 



The relative prsefoliation is said to be imbricate when the margins of 

 contiguous leaves overlap one another. 



CHAPTER V. 



HAIRS. 



The Hairs are the protuberances developed from the 

 outermost surface or epidermis of any part of the plant. 



Section 1. KINDS OF HAIRS. 



Some hairs secrete fluid-substances, as those on the young 



branches of the Choshin (Bom indica) (Fig. 109.a) and 



Tabako ; while others do not secrete any substances, as 



those on the seeds of the Wata (Gossypium Jierbaceum) 



