174 



THE VEGETABLE KINGDOM. 



6. CISTACEJE (Helianthemum Vulgare) Helianthemum. 



These plants are for the most part 

 evergreens ; the Yellow Cistus 

 is our most familiar example 

 of the order. In Turkey the 

 Rock-roses are much cultivated, 

 they exhale a gum having a 

 highly aromatic odour, which is 

 there used as a perfume. 



Heliant hernuin . 



7. BEBBERIDACEJE (Berberis vulgaris) Common Berberry. 



The Berberry is commonly found 

 in our hedge-rows, and its fruit 

 is sometimes eaten ; in Italy it 

 grows to a good-sized tree. It 

 is remarkable as furnishing an 

 example of vegetable motion, 

 from the irritability of its sta- 

 mens, which if touched will bend 

 forward in a curved position, and 

 touch the stigma with the an- 

 ther, and after remaining a 

 short time in that position the 

 stamens recover their natural 



Common Berberry. form. 



