18 



THE SECOND BOOK OF BOTANY. 



EXEKCISE II. 

 Complete and Incomplete Flowers. 



The collection of flowers that in the previous ex- 

 ercise were separated into symmetrical and unsym- 

 metrical ones, may now be rearranged, separating 

 the complete from the incomplete, according to the 

 following definitions : 



COMPLETE FLOWEES consist of calyx, corolla, sta- 

 mens, and pistil (Fig. 5). 



FIG. 5. 



Complete Flower. 



INCOMPLETE FLOWEES have one or more of the 

 floral whorls absent (Figs. 6 and 7). 



FIG. 6. 



FIG. 7. 



Incomplete Flower. 



Incomplete Flower. 



