ON BELL-FLOWERS 37 



rest, the Bell-flowers must have come late in the stages 

 of evolution. 



If I had to pick out what I regarded as the most 

 precious of the foregoing Campanulas, I should be dis- 

 posed to take the double white form of the Peach-leaved 

 (persicifolia alba plena). It is a graceful, lasting, and 

 beautiful plant, which in my experience is not fastidious 

 as to soil, and is well suited for a suburban garden. It 

 is stocked by all the hardy plant dealers, and costs but 

 a small sum. Grandiflora and glomerata dahurica are 

 two valuable species. 



All the Campanula like cool conditions in the 

 summer ; they enjoy a semi-shady position and a 

 friable soil. Little summer attention is needed except 

 staking. 



