INFLORESCENCE AND FLOWERS—FRUIT AND SEED 129 
down in its apex also a nucleated mass of protoplasm, 
and it passes this over into the egg-cell in the embryo- 
B 
« 
‘wae 
SeNesententis 
Fig. 35.—Various stages in the development of the ovule. 
nm, nucellus; 7, i’, integuments; p, point of attachment 
to placenta; e, embryo-sac ; 7, vascular cord supplying 
ovule; m, micropyle; #, young embryo. (Partly after 
Th, Hartig.) 
sac; the union of the nucleus from the pollen-tube 
with the nucleus of the egg-cell constitutes the act of 
K 
