Fruits and Seeds. 



183 



seed-chamber places itself at right angles to the 

 pillar (fig. 69, a). The edges then separate, but they 

 are provided with a fringe of hairs, just strong 

 enough to retain the seed in its position, yet suffici- 

 ently elastic to allow it to escape when the carpels 



Diagram. 



Fig. 69. THE CUT-LEAVED GERANIUM. 

 just before throwing seed ; b, just after throwing seed ; c, the 

 capsule still attached to the rod ; </, the seed. 



burst away, remaining attached, however, to the 

 central pillar by their upper ends (fig. 69, c}. 



3. In the common Herb Robert (fig. 68 and 70), 

 and some other species, the arrangement is somewhat 

 different. In the first place the whole carpel springs 



