The Evening Primrose and the Hovering Moth 



but they is one thini!; what you never tole us about 

 yit. Why is it that the buds on so meny evening 

 primroses swell up so big and never open ? Some 

 of them has holes into them, but I never seen 

 nothing cum out." 



This same question must have been mentally pro- 

 pounded by many observers 

 who have noted this singular 

 peculiarity of the buds — two 

 sorts of buds, one of them 

 long and slender, and with a -' 

 lonofcr tube ; the other short 

 and stout, with no tube at all 

 — both of which are shown 

 in proper proportion in my 

 illustration. It is well to 

 contrast their outward form, 

 and to note wherein they 

 differ. In the normal or 

 lono-er bud the tube is slen- 



dcr, and extended to a length of an inch or more, 

 while in the shorter specimen this portion is reduced 

 to about a fifth or a sixth of that length, while the 

 corolla enclosed within its sepals is much shortened 

 and swollen. 



The difference in the shape and development of 



51 



