156 



THE SECOND BOOK OF BOTANY. 



is given in section, and here follows its schedule- 

 description. 



SCHEDULE TENTH. 



Now look at an ovary that has attained its full 

 size, and lost its petals and stamens. It has turned 

 brown, the furrows on its sides are deepened, and it 

 separates into two halves, commonly called seeds 

 (caraway- seed, for example). This ovary requires 

 close study. In Fig. 310 you see its two carpels sus- 

 pended in a peculiar manner. You may see in your 

 specimen this slender, forked carpophore. 



The fruit of the umbelliferae consists of two 

 achenia, called a cremocarp, and each achenium, or 

 carpel, is called a mericarp. The inner faces of the 

 carpels, which are in contact before ripening, are 

 called the commissure. 



Fig. 311 is a magnified view of the back of a 



