LESSONS WITH PLANTS 



325 



or the corolla, or both, are missing. Sometimes flowers have 

 stamens and no pistils and vice versa. This also is a device 

 for cross-pollination. Types of flowers illustrating these 

 modifications in structure should be shown. 



Let primary children study flowers chiefly with an aesthetic 

 interest. Xeach them to recognize the parts of a perfect 



FIG. 124. Staminate and Pistillate Flowers of a Squash Cut Open 



flower. Also let them watch window or outdoor plants and 

 see that the flower goes to seed. The process of pollination 

 may be briefly studied. Watch the bees and other insects 

 crawling in the flowers and see how they become dusted 

 with pollen. Let the pupils begin to identify the common 

 wild flowers. 



In intermediate grades other points may be taken up. 

 Study the floral organs more in detail, particularly the stamens 



