439 



easily determine that this orange-colored one is Clitocyhc illndcus and 

 is not edible. 



It must not be supposed that this key to the genera is in any sense 

 complete. It includes all the genera represented in this article, and 

 a few others, but in order to make it as little complex as possible a 

 considerable number of less common genera have l^een left out. 



