FERTILIZATION. Fit 
the projecting stamens and receive pollen from them, as is 
indicated in Fig. 154. 
209. Movements of Floral Organs to aid in Fertilization. — 
Besides the slow movements which the stamens and pistil 
make in such cases as those of the Clerodendron and the 
mallow, already described, the parts of the flower often admit 
of considerable and rather quick movements to assist the 
insect-visitor to become dusted or smeared with pollen. 
In some flowers whose stamens perform rapid movements 
when an insect enters, it is easy to see how directly useful 
the motion of the stamens is in securing cross-fertilization. 
Fic. 155. —Two Flowers of Common Sage, one of them visited by a bee. 
The stamens of the laurel, Kalmia, throw little masses of 
pollen, with a quick jerk, against the body of the visiting 
insect. Barberry stamens spring up against the visitor and 
dust him with pollen. The common garden sage matures 
its anthers earlier than its stigmas. In Fig. 155, A, the 
young flower is seen, visited by a bee, and one anther is 
shown pressed closely against the side of the bee’s abdomen. 
The stigma s¢ is hidden within the upper lip of the corolla. 
In B, an older flower, the anthers have withered and the 
stigma is now lowered so as to brush against the body of any 
