THE FLOWER VXD THE BEE 



The flowers of the alder arc in calkins or aments. A cat- 

 kin is a cylindrical flower-cluster composed of many small, 



Fig. 4. Common Alder. Ahum incana 

 .1, fertile catkins ; B, staminate catkins ; a wind-pollinated shrub 



nearly sessile flowers, and numerous protecting scales. The 

 stamens and pistils are always in different catkins. In a 



