FlG. 430. Microsporangia (synangia) of Cycadeoidea. After WlELAND. 



FIG. 431. Diagram of strobilus of Benn&- 

 tiles i in which the seeds are mature; showing 

 the sheathfng bracts, the long-stalked seeds, 

 and the broad-tipped interseminal scales. 

 After SOLMS and POTONIE. 



180 



FIG. 432. Sectic.1 of 

 a seed of Bennettites l 

 showing the large dicoty- 

 ledonous embryo. After 

 SOLMS. 



