114 



PART I. — ORGANOGRAPHY. 



into the loculi or cavities of the cells, as in Fig. 331. All these 

 are forms of valvular dehiscence. The Violet and Gentian 

 afford examples in which the valvular dehiscence is complete, as 

 shown in Fig. 332, while in the capsule of Lychnis, Fig. ^^^, it is 

 partial or incomplete, and the partial separation takes place at 

 the top of the capsules. In the capsules of the Hare-bell and 

 of Cinchona Calisaya, see Fig. 334, it occurs at the base, 

 (d) The porous. In this form, Fig. 335, the dehiscence takes 

 place by small openings or pores, as in the Poppy. It is really 

 a variety of the valvular dehiscence, (e) The circumseissile is 



Fig. 332. 



Fig. 333. 



Fig. 334. 



Fig. 335. 



Fig. 332. — Capsule of the Gentian, dehiscing septicidally into two valves. 

 Fig. 333. — Capsule of Lychnis, showing partial dehiscence of capsule. 

 Fig. 334. — Kasally dehiscent capsule of Cinchona Calisaya. 

 Fig. 335. — Capsule of the Poppy, showing porous dehiscence. 



that form in which the upper portion of the capsule separates 

 from the lower, like a lid, by a transverse dehiscence, as in the 

 capsule of Hyoscyamus, Fig. 336. Such a capsule is often 

 termed a pyxis, (f) The irregular, or that form in which the 

 dehiscence takes place in an indefinite manner or by an irregular 

 rupture of the pericarp, as in the garden Snap-dragon. 



The following capsules have peculiarities which make it 

 convenient to apply special names to them : One which is 

 elongated, two-valved, and the valves of which separate from 

 the base upward, leaving the seed-bearing placentas in place, as 

 in the Mustard and Celandine, Fig. 337, is called a silique ; and 

 a shortened silique, like that of Shepherd's Purse, Fig. 338, is 

 termed a silicle. 



Fruits that are the product of one flower, but of more than 

 one pistil, are often called aggregated 'fruits. 





