XVII 



MORPHOLOGY OF SEEDS AND FRUIT 



229 



many one-seeded fruits, and these enclose the seeds until 

 germination (Fig. 223). Examples Fool's Parsley, Maple, and 

 Geranium. 



FIG. 222. Achenes of Buttercup. (S.) FIG. 223. Schizocarp of Sycamore. 



Dehiscent. (a) The capsule is a dry, syncarpous fruit which 

 opens by pores, valves, or teeth (Fig. 224). Examples Poppy, 

 Lily, Foxglove, and Stellaria. 



FIG. 224. A, Capsule of Poppy ; B, transverse section of capsule ; C, seeds. (One- 

 fourth nat. size.) 



(V) The siliqua is formed of two carpels ; it is superior and 

 syncarpous (Fig. 226). Examples Wallflower, Rape and 

 Mustard. 



If the siliqua is short and wide it is called a Siiicula. Ex- 

 ample Shepherd's Purse (Fig. 227). 



(c) The legume or pod is composed of a single carpel which 



