130 



MORPHOLOGY OF AXGIOSPERMS 



The number of chromosomes observed in connection with 

 the reduction division have been noted in the preceding chap- 

 ter (p. SI). 



Fig. 61. — First division of pollen mother-cell, showing formation of the bipolar from the 

 multipolar spindle A, B. E. F, Lilium Martagon; C-D, L. candidvm. A, double 

 row of chromatin granules upon the linin thread ; B. later stage in which the entire 

 thread has split longitudinally ; C, formation of a weft of fibers about the nucleus; 

 I), multipolar spindle ; E, bipolar spindle ; F, telophase of first division showing 

 that the division is of the successive type. — After Mottier. 49 



