MOEPHOLOGY OF BEPRODUCTIVE ORGANS 229 



contains no differentiated oosphere. It is a unioelMar or multi- 

 cellular structure known as a procarp (fig. 498), and consists 



Fig. 493. 



Fig. 496. 



^ (V-^^ 



Fig. 493. Vertical section of a female conceptacle of Fitcus vesiculostis 



contairuug oogonia and paraphyses. After Thnret. Fig. 494. 



Antheridia, a, a, on the branched hairs of the male conceptacle. 

 After Thnret. Fig. 495. Oogonium with the oospheres fnlly differen- 

 tiated and disengaging themselves from their coverings. After Thnret. 



Fig, 496. An oosphere surrounded by a number of antherozoids, one of 



which ultimately fuses with it, 



of a slightly swollen basal portion, prolonged upwards into a 

 filament called the trichogyne, which is the part which fuses 

 with the spermatium in fertilisation. The procarp does not 



