THE FEMALE GAMETOPHYTE 



123 



Fig. 78. Development of embryo sac in Adoxa moschatellina. A, megaspore 

 mother cell. B, two-nucleate stage. C, two nuclei dividing. D-G, four-nucleate 

 embryo sacs. H, division of four nuclei. /, same, telophase. J,K, mature embryo 

 sacs. (After Fagerlind, 1938a.) 



