THE SECOND BOOK OF BOTANY. 



the carpels flatten out as soon as they are released 

 from each other. 



FIG. 196. 



FIG. 197. 



FIG. 198. 



Septifragal. 



The dehiscence is SEPTIFEAGAL where the valves 

 fall away, leaving the dissepiments behind attached 

 to the axis (Figs. 196 and 197). 



IRREGULAR DEHISCENCE. Seeds are sometimes dis- 

 charged through chinks, or pores (porous dehiscence) 

 (Fig. 198), or the ovary may burst in some part irregu-. 

 larly. 



Now compare the capsules in your collection with 

 the figures and definitions given in this exercise, and 

 determine, if you can, the mode of dehiscence of each 

 of them. 



How would you produce loculicidal dehiscence in 

 the compound ovary you have made with leaves, as 

 directed in the opening of this exercise ? 



How septicidal ? How septifragal ? 



