20 



THE SECOND BOOK OF BOTANY. 



EXERCISE IV. 



Dichlamyd'eous, MonoMamyd'eous, and Achla- 

 myd'eous Flowers. 



When the protecting organs, calyx and corolla, 

 are present in a flower, it is said to be dichlamydeous 

 (Fig. 8). 



FIG. 8. 



Dichlamydeous Flower (Gray). 



When there is but one whorl of protecting organs, 

 whatever its color or texture, it is called a calyx, and 

 the flower is monochlamydeous (Figs. 9 and 10). 



FIG. 9. 



FIG. 10. 



Monochlamydeous Flower. 



Monochlamydeous Flower. 



