230 



BOTANT. 



it enters the ovule through the opening in the coats (Pig. 

 131, A). Here it comes in contact with the apex of the 

 ovule-body, and soon reaches the emhryo-sac. The contents 



ff ' 



Via. 133.— Embryo of Shepherd's Purse (Capsella), in various stages, i), the 

 suspensor. In V the root-cells, w, first appear, the rudimentary leaves, c, c, and 

 stem, s, already formed. Highly magnified. 



of the pollen-tube unite with the germ-cell, which then 

 forms a wall about itself; it then divides transversely one 

 or more times, forming a row of cells (the suspensor), at the 



