LEA VES. 



more irregularly so, the butter- 

 cup more irregularly still, but the 

 edge of the daisy leaf is not 

 notched at all. 



The general shape of a leaf is 

 also to be noticed. You will find 

 them egg-shaped, heart-shaped 

 (Fig. 1 6), shield-shaped, fiddle- 

 shaped, and many others. 



Fig. 19. A compound 

 leaf. 



As for the surface of leaves, sometimes they are 

 smooth and shiny, as in the ivy or the holly ; some- 

 times they are downy, or woolly, or rough with 

 hairs. These hairs are of many kinds, and are 

 found on other parts of a plant besides the leaves. 

 Some of them are hooked, like those of the 

 common Harriff (hair-rough). I dare say you do 

 not know the plant by its name, but perhaps you 

 have found it or its seeds hooked fast to your clothes 

 when you have been walking in a wood, or picking 

 flowers from the hedge-side. Some hairs have little 

 bags belonging to them. In one kind of rose these 

 little bags are scent-bags, so it is called sweetbriar. 

 But in the nettle they are poison-bags, and when its 

 little hairs pierce you they sting, as I dare say you 

 know very well. 



Now, in the primrose the surface of the leaf is un- 

 even ; or if we can see a thistle we shall find that its 

 leaves are quite crumpled, and are also armed with 

 little spines. Can we find a holly bush? But, no 



