THE FRUIT. 



207 



attached to the replum, in the axis of the fruit. These pla- 

 centa thus united together by the replum, frequently remain 

 after the fall of the valves, until the foliage of the plant finally 

 decays. 



102. 



Fig. 102. The fruiting branch of the Shepherd's purse (Capsella bursa pastoris,) 

 supporting siliculse. a. Magnified silicula, opening by two valves from the back 

 upwards, each valve leaving its placenta covered with seeds, and attached to the 

 replum in the centre of the fruit. 



5. The Silicula. This is simply a short and broad Siliqua 

 containing sometimes only one or two seeds. It is also peculiar 

 to Cruciferous plants. 



