HOW THE SEEDS BEHAVE 13 
then see that the 
stem is a continua- 
tion above from the 
root, jomed to one 
end of the two thick 
parts or cotyledons. 
This part of the stem 
now grows rapidly, 

Fic. 26. Beans with one cotyledon removed to see 
how the cotyledons are raised up from the ground. 
arches up in a loop, 
and lifts the bean 
upward. 
The pea. ‘The 
pea germinates in 
a different way. 
After the root be- 
gins to grow the “{)sccnow the cotyledons are left in the 
pea swells, so that 8°u"® 
the thin coat is cracked. The stem, just as in 
the bean, is joined at one side to the two thick 
cotyledons of the pea. But this part of the 


