294 



TYPICAL FLOWERING PLANTS 



thick, fleshy stalks of their leaves. In 

 cabbages, the blade of the leaf is the 

 place of storage, while in onions it is 

 the thick enlarged base of the leaves. 



Clematis and nasturtiums climb by 

 twining the petioles of their leaves 

 around a support. 



Pitcher plants have leaves which hold 

 water and entrap insects. Venus's fly- 

 trap and sundew both use their leaves to 

 catch insects. 



Plants which have leaves lasting more 

 than one year are called evergreen; and 

 those that shed their leaves every autumn 

 are called deciduous (Latin, deciduus, 

 falling off). The blade of some leaves 

 is in one piece, as is the case with the 

 geranium. Such leaves are called simple 

 leaves to distinguish them from the com- 

 pound leaves, like the rose or horse-chestnut, in which one 

 petiole supports several leaflets. 



Figure 302. — Pea 

 Plant. 



Leaves modified in- 

 to tendrils. 



Figure 303. — Leaf of Oak. 

 Simple leaf. 



Figure 304. — Leaf 



of Elm. 



Simple deciduous 



leaf. 



