PLATE IV. 



Fi g . 3 . Structure, of Carpogonuun 

 a/. Chora/ ~b . 



i. I Portum; vfLeat' with,' rnaZf & 



Large, lateral leaflet - 



JttffltrLduzrn; 



Fi ^.5. afrrmnattng Carpogotuum 

 T^rotmbryo 



Fig 4-. Development of Ovpocfcrrvuxm, 

 Cell. 



eiidvscd in filutntnt& 



, J./X'Z originating die 

 THE BRACKEN FERN (PTERIS AQUILI N A ) 



Fig. 3. Partit in" the L<-af 



Fi4. 8. Partumi of TrvthaUu* 

 o 



