THE FLOWBK 101 



up the flower so that an insect may be able easily to reach the 

 honey-tube. 



Drawing Exercise : (a) Draw the five petals of a geranium 

 flower, showing how they differ in size, (b) Draw two or three 

 rose sepals, showing how they differ in shape. 



XVII.— THE FLOWER.— Pabt III. 



The Pakts of a Flo web (continued). 



1. We have looked at the calyx of the scarlet 

 geranium, and we have seen how the calyx protects 

 the flower when it is young. We have looked also at 

 the corolla whose gay colour calls out to passing 

 insects: "Here is pollen; come and eat: here is 

 honey; come and sip !" 



2. We have now to look at the stamens, the parts of 

 the flower that bear the pollen - cases. Take a 

 flower that is only half-open, and, with the help 

 of a pin, turn back the sepals, and hold them between 

 finger and thumb. Then, still using the pin, take off 

 very gently the outsids small petal. You can easily 

 And this outside petal because it is always opposite to 

 the largest sepal. Then take off the other small petal, 

 and then the three largest petals. Notice, as you do 

 this, how beautifully the petals are folded. Tou see 

 now ten small red stalks, some of which end in red 

 pollen-cases. The stalks are the stamens and the 

 pollen-eases are called anthers. You will see that 

 there are no pollen-cases on three of the stamens ; 

 and we guess from this that the flower has learned to 



