62 



tube, retaining the color naturally longer within, hut it 

 finally breaks up into numerous })urj)le clots. The two addi- 

 tional streaks of yellow in Catalpa may be a more recent 

 color [)roduced when the flower became bi-lateral and the 

 ridges formed, necessitating the insect to take that course. 



Jmpatiens fulva is similarly marked with purple dots 

 equally distributed over all the lobes. 



Example 10. — In the preceding examples we have shown 

 how a bee can assist Nature in variegating a flower with 

 another C()h)r. We are al)le to demonstrate farther that a 

 bee not only assists, but actually produces color, and that 

 the same bee may be instrumental in developing three or 

 four distinct colors in the same flower ! We will endeavor 



