Pollination and Fertilization 



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base and suddenly enlarge about tbe middle, where honey is 

 made which fills the lower part of the tube. The stamen 

 attached to the front sepal is arched backward and brought 

 into line with the two at the back, which by a twist of the 

 filaments turn the anthers so that they all discharge their pollen 

 toward the centre of the flower. In the younger flowers at the 

 top of the stalk the stamens ready to discharge their pollen 



Fig. 146. — Antholyza revoliita. 



hang forward below the style, whose three branches are closed 

 like the pages of a book. In the older flowers below, the 

 anthers which have discharged their pollen are drawn back by 

 the drying of their filaments. The lobes of the stigma are 

 unfolded and hang down below the stamens. An insect in 

 search of honey sips and flies away, unconscious of the dust on 

 its back, or that this dust is brushed off on to the stigmas of 

 other flowers. When a stigma is well dusted the perianth 



