III.] 



OTHER SPECIES OF GERANIUM. 



59 



raises itself into an upright position (Fig. 41, «) ; the 

 outer layers of the rod-like termination of the seed- 

 capsule come to be in a state of great tension, and 

 eventually detach the rod with a jerk, and thus throw 

 the seed some little distance. Fig. 41, ^ represents 

 the central rod after the seeds have been thrown. In 



Diagram. 

 Fig. 42. — Geranium dissecium, 

 Ut just before throwing seed ; ^, just after throwing seed ; Ct the capsule still attached 

 to the rod ; d, the seed. . 



some species, as for instance in Geranium dissectum. 

 Fig. 42, the capsule-rod remains attached to the central 

 column and the seed only is ejected. 



It will, however, be remembered that the capsule is, 

 as already observed, a leaf folded on itself, with the 

 edges inwards, and in fact in the Geranium the seed- 



