160 THE VEGETABLE WORLD. 
dium, from pyxios, “a box.’ We see it in the Red Pimpernel and 
Henbane (Fig. 235). In others, the pericarp comes away in two 
valves, which, by théir fall, uncover a frame formed by the placenta 
furnished with their seed; this kind of fruit is called s¢dzqua, a 
pod or husk ; the fruit of the Gilliflower is of this sort (Fig. 236). 
Can anything be more ingenious than the plan of opening in the 
capsule of the Poppy (Fig. 237), or of the Field-Poppy? In these 
instances dehiscence takes place by means of a certain number of 
small reflex valves disposed in a circle on the 
flattened top of the fruit. The seeds in it are 
very numerous; but, in consequence of the 
beautiful arrangement just mentioned, they only 
fall; one by one, when the capsule is bent over 
by the wind, thus forming a kind of natural 
seed-drill. 
The fruit of the Foxglove (Digitalis), Fig. 238, 
which is also a capsule, opens with two valves, 
by the severance of the partitions in it, and each valve corresponds 
with a carpel; this is called septicidal dehiscence. 'The capsule of 
the Tulip (Fig. 239) opens with three valves, each valve corre 
Fig. 238,—Capsule of 
Digitalis. 
Fig. 239.—Fruit of the Tulip. Fig. 240,—Fruit of the Sandbox-tree. 
sponding with the two halves of the carpel, and has a partition 
im the middle. This is called loculicidal dehiscence. 
