Fig. 36. -LiUum phiiadelphicum. E, mitotic figure of the reduction division showing 

 the short, thick chromosomes characteristic of this stage; F. binucleate embryo- 

 sac : '/. four-nucleate embryo-sac : ^//'double fertilization "; in the egg the darker 

 nucleus is the male and the lighter one the female; just beyond the egg three 

 nuclei are t'u>iiiL r ; the antipodal polar nucleus forms about one-half of the complex, 

 while the micropylar polar nucleus and the male nucleus form the other half, the 

 male nucleus being on the rijrht and touching both polar nuclei. E-6 x 466; 

 11 y 520.— Negatives by W. .!. G. Land. 



