PLAJE 24 



A. — Longitudinal section of the fertile pistil at the time the silk has started to elon- 

 gate: ovw, ovary wall; sc, stylar canal; ovc, ovule coats; ov, ovule; ms, megaspore 

 mother cell; sk, silk. X 300. 



B.— Longitudinal section of the fertile pistil at the time the ovule has started to 

 invert: ovw, ovary wall; sc, stylar canal; sk, silk; ovc, ovule coats; ms, megaspore- 

 mother cell. X 300. 



