659 
McAllister—C 'ology and Embryology. 
Figure 35. A multipolar spindle stage of the second reduc¬ 
tion division. The characteristic V-shape of the 
chromosomes of the late anaphases of the first divi¬ 
sion is again seen here. 
Plate III. 
Figure 36. A telophase of the first division of the embryo-sac 
mother cell. Hjote the dissimilarity of the two 
daughter cells in size. 
Figure 37. Telophase of the homoeotypic division of the em¬ 
bryo-sac mother cell. A wall is formed between the 
daughter cells of the first division and a cell plate be¬ 
tween the outer pair of nuclei. 
Figure 38. Four fully separated macrospores formed from 
the two divisions of the embryo-sac mother cell. The 
inner spores are smaller. 
Figure 39. A stage similar to figure 38, though later. Ho 
wall showing between the inner pair of nuclei while 
a trace of a plasma membrane shows between the 
outer pair. 
Figure 40. The inner pair of nuclei small and evidently in 
early stages of degeneration. The outer pair large 
and healthy with no trace of division membranes be¬ 
tween them. 
Figure 41. Division of the two outer nuclei to form the four 
nucleate embryo-sac. The inner nuclei nearly de¬ 
generated. 
Figure 42. The four nuclei fully formed in the embryo sac 
while the outer pair still retain their form in the 
small inner cell. The nucellar wall is here two cell 
layers in thickness. 
Figure 43. The division of the four nuclei to form! the eight 
nucleate embryo-sac. This embryo-sac was cut ob¬ 
liquely and in this figure the upper end is shown, and 
a polar view 1 of one of the lower nuclei in process of 
division. The inner pair of macrospores is still to 
be identified. 
