BEES AS BUILDERS OF FLOAVERS 



formed by the sides of the upper Up. (Fig. 41.) Their inner 

 faces are appHed together to form a single chamber or cavity 

 into which the pollen, when ripe, falls. The contiguous edges 



Fig. 27. Two varieties of Monkey-Flower. Mimulus luteus 



A bee-flower 



are densely woolly to protect the pollen and to prevent the 

 relative displacement of the anthers by connecting the first 

 pair above, and the first and second pairs at the sides. When 



59 



