THE FRUIT. 



187 



of the marsh marigold, the columbine, and a good many other 

 plants, often produce a fruit which dehisces along a single 

 suture, usually the ventral one. Such a fruit is called a 

 follicle, Fig. 171. 



224, The Legume. — A legume is a one-celled pod, formed 

 by the maturing of a simple pistil, which dehisces along both 

 of its sutures, as already seen in the case of the bean pod, and 

 illustrated in Fig. 176. 



225. The Capsule. — The dehiscent fruit formed by the 



SiQ. 172. — Winged Fruits. 

 I, elm ; II, maple. 



ripening of a compound pistil is called a capsule. Such a 

 fruit may be one-celled, as in the linear pod of the celandine, 

 Fig. 176, or several-celled, as in the fruit of the poppy, the 

 morning-glory and the Jamestown weed, Fig. 176. 



226. Dry Fruits and Fleshy Fruits. — In all the cases 

 discussed or described in §§ 213-219 the wall of the ovary 

 (and the adherent calyx when present) ripen Into tissues 

 which are somewhat hard and dry. Often, however, these 

 parts become developed into a juicy or fleshy mass by which 



