CELL-DIVISION. 



Ill 



Fig. 85. — The Monaster Stage in a Cell of the Root-tip of HyaciiUlnt.s. 

 The chromosomes are in reality double, but the duplication cannot be 

 seen when the loops are seen in surface view {from a photomicrograph). 



Fig. 86. — The Monaster Stage sben erom the side troot-tip of 

 Allium). 



