394 CAMPANULACEiE. [part h. 



ORDER CXIL— CAMPANULACE^ THE 



CAMPANULA TRIBE. 



The plants in this order have a bell-shaped 

 regular corolla, consisting of five petals, usually 

 grown together so as to form a monopetalous 

 corolla with five lobes, each lobe having a con- 

 spicuous central nerve or vein. There are five 

 or more stamens, which are generally distinct, 

 and which have broad bearded filaments bend- 

 ing over the ovary. The style is at first short, 

 but it gradually elongates itself, and both it and 

 the stiofmas are furnished with tufts of stiff 

 hairs, which, as the style pushes itself through 

 the stamens, brush off the pollen, and retain it 

 till the stigma is in a proper state to receive it. 

 The anthers burst as soon as the corolla opens. 

 The capsules have generally two, three, or five 

 cells, and each cell contains many seeds. 



In the genus Campanula, the capsule opens 

 by little valves, which look as though cut with 

 scissors. The juice of the plants is milkv, but 

 not poisonous. The principal genera are Cam- 

 panula, Prismatocarpus (Yenus's Looking-glass), 

 Roellia, Phyteuma (the petals of which are 

 distinct), Trachelium, AVahlenbergia, and Ade- 

 nophora. Lobeliacese and Goodenoviacese were 

 formerly included in this order. 



