THE DEVELOPMENT OF THE OVULE INTO A SEED 45 
Fic. 54. — A, a vertical section through an Oat ovary showing one style 
and stigma, the ovary wall, and the parts of the ovule. B, a vertical section 
through an Oat kernel showing its parts. After comparing with Figure 53 
label the parts of A and B and with lines indicate the parts of A from which 
the parts of B have developed. 
Fic. 55.— A diagram showing the relation of the parts of the ovule to 
those of the seed in Red Clover. A, ovule just after fertilization showing 
the egg (e) and the endosperm nucleus (d). B, seed with half of the seed 
coat (s) removed to show the large embryo (em). The dotted lines indicate 
the relation of the parts of the ovule to those of the seed. 
