227 
In a freshly opened blossom each 
stamen is bent over, as you see they are 
pent “over im’ the- picture (Fig. 233). 
Their dust boxes are caught in little 
pockets of the flower cup. When a bee 
lights on a flower (Fig. 234), the jar causes 
the dust boxes to spring from the pockets 
with so much violence that the pollen is 
shaken over the body of the visiting bee, which 
is sure to leave some of F™% 73! 
it on the pistil of the next flower. 
Some flowers take special care 
to prevent their pistils from 
being dusted with pollen 
from the dust boxes of the 
same blossom. The fireweed 
bears such blossoms as these. 
: In Fig. 235 you see. that the 
“S. stamens of the fireweed are 
Fic. 232 Jarge and ripe, and ready to 
shed their pollen; but the pistil is bent sideways, 
pushing its closed tip quite out of the corolla, and out 
of reach of any pollen from a neighboring 
stamen. 
Fig. 236 shows you another blossom from 
