Crocuses 



21 



That of most flowers is a modest affair (Fig. 20), 

 composed of tiny green leaves, or sepals, which 



Valerian. 



Flax. 



Loosestrife. 



FIG. 2a. Calyces of differing forms. 

 (From the Vegetable World.) 



are quite eclipsed by the superior size and bril- 

 liancy of the petals or flower-leaves within them 

 (Fig. 2b). 



