108 THE FIRST BOOK OF BOTANY. 



EXERCISE XLV. 

 Kinds of Regular Polypetalous Corollas. 



FIG. 200. 



Cruciferous. Caryophyllaceous. 



A CRUCTF'EROUS COROLLA has four petals growing 

 in the shape of a cross. 



A CARYOPHYLLA'CEOUS COROLLA has five petals, 

 having each a long, slender claw, and a spreading 

 blade. 



FIG. 202. 



FIG. 2C3. 



Rosaceous. 



Liliaceous. 



A ROSA'CEOUS COROLLA has five petals, with spread^ 

 ing lamina and short claw. 



A LILIACEOUS PERIANTH has six leaves, bending 

 away something like a bell. 



