A HOMELY WEED 
Fig. I 
conditions are to be 
found on this cluster. 
A small wasp is now 
seen hovering about the 
flowers, and we must 
turn our attention to 
him as seen in Figs, i, 
2, and 3. The insect 
^ alights, we will assume, 
on a blossom of the second day 
(Fig. i), clinging with all his 
feet, and thrusting his tongue 
into the beads of nectar shown 
at A 1 and B r . He now brings his breast or 
thorax, or perhaps the underside of his head, 
against the pollen, and is thoroughly dusted with 
it. Leaving the blossom, we see him in flight, as 
at Fig. 2, and very soon he is seen to come to a 
freshly opened flower, which he sips as be- 
fore. The pollen is thus pushed against 
the projecting stigma, as 
shown at Fig. 3, and 
thus, one by one, the 
flowers are cross-ster- 
ilized. 
The stigma, after re- 
ceiving pollen, imme- 
diately bends down- 
ward and backward, 
Fig. 2 
