Darling: Sex in dioecious plants 199 



33. Polar views of the metaphase of the second division showing thirteen chromo- 

 somes in each plate. 



34. Early stage in reconstruction of the daughter nuclei ; the ones opposite each 

 other are derived from the same nucleus; the two derived from one show three chro- 

 matin bodies each, the other two show but two each. 



35. A later stage in reconstruction, in which the bodies are all fused into one chro- 

 matin nucleolus in two of the nuclei ; while in the other two fusion is taking place in 

 one and not in the other. 



36. The resting nuclei after the second division ; each nucleus contains the single 

 spherical nucleolus with the small non-staining bodies about the nuclear walL 



