CYCADALES 123 



in the Bennettitales the meristem, after producing the staminate 

 sporophylls, produces an ovulate strobilus which terminates that 

 axis; while in Cycas the meristem, after producing ovulate sporophylls, 

 produces vegetative leaves. 



In Cycas revoluta the megasporophylls are more nearly like the 



Fig. 113. — Cycas revoluta: loose ovulate strobilus, Kochi, Fosa, Japan, August 4, 

 1909. — From photograph by Miyake. 



vegetative leaves than in any other cycad (fig. 114). C. circinalis 

 and C. Normanbyana show more reduction, but the pinnate charac- 

 ter of the vegetative leaf is still conspicuous. In Dioon edule the 

 pinnate character is not conspicuous, but the blade is still leaflike, 

 and the strobilus has to some extent the loose arrangement of sporo- 



