OTHER METHODS OF OBTAINING FOOD 199 
brought into contact with more and more of the drops, be- 
coming hopelessly captured. The stimulus of contact pro- 
vokes a movement of the stalked glands, all of which slowly 
bend over and bring their viscid heads to bear upon the 
struggling insect. The same disturbance causes an outflow 
of acid enzyme-containing secretion, which surrounds the 
prey, and digestion and absorption follow as before. After 
Fic. 96.—Lrar or Dionea muscipula. 
1, open; 2, closed : a, lateral view, b, surface view; 3, one of the sensitive 
spines ( x 60); 4, glands on the surface of the leaf ( x 100). 
a time the glands unfold again and resume their normal 
attitude, and the leaf is ready to receive another visitor. 
Dionza affords an instance in which the movement of 
capture is effected with greater rapidity. Like most of the 
insectivorous plants it possesses a rosette of leaves which 
rest upon the ground, and from the centre of the rosette 
it gives off a single inflorescence. The leaves are very 
different from those of Drosera. They have a flat ex- 
panded petiole, at the end of which the lamina is attached 
