1 44 



On Floivers and Insects. 



which are united at their edges and at the top (fig. 

 43), so as to form a tube, within which is the 

 pistil. The anthers open inwards, so as to shed the 

 pollen into this box, the lower part of which is 



Fig. 44. Floret of FEVERFEW (Chrysanthemum parlhenium}, 



somewhat more advanced. 

 Fig. 45- Floret of FEVERFEW (Chrysanthemum par thenium], 



with the stigmas expanded. 



formed by the stigma, or upper part of the pistil. 

 As the latter elongates, it presses the pollen against 

 the upper part of the box, which at length is forced 

 open, and the pollen is pushed out (fig. 44)- Any 

 insect then alighting on the flower would carry off 



