Further Notes on Floral Struetui 





81 



nules and attached synangia with quite well-marked traces of 

 wall structure, and finally the central ovulate cone with its 

 large pithy axis bearing the young zone of seed stems and 

 interseminal scales. And we can also see traces of the sporan 

 gia, either a young condition being indicated, or pollen shed- 



Fig. 4. 



Fig. 4. Cycadeoidea Marshiana. 



Longitudinal and serial transverse sections through core in which are' - 

 embedded two adjacent ovulate cones, x 3/2 nearly. The secant lines in 

 sections 723-725 indicate the position of the longitudinal section 722. In 

 the latter the position of the foregoing transverse sections is indicated. At 

 S in 722 there is a mass of tissue left by the breaking down of a disk. 



