226 Field, Forest, and Wayside Flowers 



the corn-cockle's butterfly friends go to rest, it 



closes. 



The evening-lychnis, which is still somewhat rare 



in this country, resembles the corn-cockle almost 



exactly in size, 

 form, and foliage, 

 but is adapted in 

 several interesting 

 ways to its chosen 

 friends, the night- 

 moths. It opens 

 at evening, after 

 remaining partially 

 closed all day, and 

 thus it saves its 

 nectar for its noc- 

 turnal guests. That 

 they may more read- 

 ily see it in the 

 dark fields it glim- 

 mers white, and as 

 an additional help 



al Report of U. S. Department 

 Agriculture for 1886.) 



. . a 



it the flower is 

 fragrant. Lastly, the evening-lychnis has no lines 

 to indicate the whereabouts of its nectar, for these 



