124 TALKS AFIELD. 



ter, except at the inflated top. They are 

 spirally twisted about half a revolution, the 

 twist being usually to the left. Running 

 lengthwise the pitcher is a narrow wing, ex- 

 tending from the ground to the orifice. 

 This wing is best seen in the pitcher to the 

 right in Fig. 86. The top of the pitcher is 

 an inflated sac two to four inches across, 

 with translucent dots or windows in its roof, 

 and having an opening underneath, an inch 

 or less in diameter. At the upper extremity 

 of this opening hangs a two-lobed blade, re- 

 sembling a fish's tail, which is attractively 

 colored and peculiarly twisted, and furnished 

 on its inside with stilf hairs pointing up- 

 wards. Like the Sarracenias this plant has 

 the honey -bait about the mouth of the 

 pitcher and the secreted fluid in the tube. 

 A crawling insect finds the base of the 

 pitcher, and wishing to explore follows the 

 fence-like wing upwards until he comes to 

 the sweet-lipped brim. Other insects are at 

 once attracted by the gaudy fish-tail blade, 

 and they light upon its outer surface. This 

 blade is twisted in such a manner that an 

 insect lights upon the outside, follows the 

 enticing folds, and presently finds himself 

 upon the inside of it. He walks upwards 



