Growth and Movement. 



125 



affords a most no- 

 table example. 

 Figure 61 shows 

 photographs of a 

 seedling of this 

 plant under dif- 

 ferent conditions : 

 A represents the 

 plant in diffuse 

 light, with its leaf- 

 lets spread out to 

 catch the light ; 

 B shows the leaf- 

 lets somewhat 

 folded together as 

 the result of a 

 short exposure to 

 direct sunlight ; 

 in this position 

 the leaflets stand 

 more nearly paral- 

 lel with the inci- 

 dent light ; C ex- 

 hibits the plant 

 directly after 

 being shaken by 

 a strong wind. 



Figure 62 rep- 

 resents a leaf of 

 a mature sensitive 

 plant in its open 

 position at A, and 

 in its closed posi- 



