6o4 



A TEXTBOOK OF THEORETICAL BOTANY 



II 



I 



CYTOPLASMIC 

 VESICLE 



Fig. 6i^.—Isoetes lacustris. Mature antherozoid. 

 {After Dracinschi.) 



Development of the Embryo 



The first division of the fertiUzed oosphere is more or less inchned to the 

 i he hrst aiv ^^^^^ ^^^ ^^^ ^^ suspensor. The upper 



"prod^c!^^^^^^^^ and th^e lower portion the cotyledon and the 



