Fig. 430. — Microsporangia (synangia) of Cycadeoidea. — After Wieland. 



Fig. 431. — Diagram of strobilus of Bennett 

 iiteSy in which the seeds are mature; showing 

 the sheathing bracts, the long-stalked seeds, 

 and the broad-tipped interseminal scales. — 

 After SoLM^and Potonik. 



iSg 



Fig. 432. — Section of 

 a seed of Bcniiettites, 

 showing the large dicoty- 

 ledonous embryo. — After 



SOLMS. 



