SAXIFRAGE FAMILY 



most interesting, for it is a case where the duty of attracting 

 insects has fallen upon the calyx. The red bell is all calyx; the 

 corolla is represented by five tiny points to be looked for between 



Heuchera. Heuchera sangiiinea 



and a little below the lobes of the bell. So insignificant has the 

 corolla become that some species of Heuchera dispense with it 

 altogether. 



The astringency of the root Juices gives the common name 

 Alum Root to the genus. 



234 



