122 THE VEGETATIVE PUNCTIONS OF PLANTS 



Fig. 8i. — Sensitive plant {Mimosa pudica). B, normal position of foliage 

 in light; A, position of foliage after the plant was slightly shaken. 



Fig. y,2.^0xalisbupkurifolia. i", Petiole; &, trifoliolate blade. At the 

 left, leaflets in normal attitude in light; at the right, attitude of leaflets at 

 night or after sudden shock. 



