I.] 



CAMPANUI.ACE^:. 



179 



Herbs. Stamens 5, epigynous. Ovary 2 5-ceIled, ovules 

 indefinite 



Type Harebell (Campanula rotundifolid). 



Adscumbent perennial herb, with milky juice, rounded 

 or cordate radical, and alternate linear cauline leaves, 

 and racemose few-flowered cymes of drooping blue 

 flowers. 



A deviation from this type we find in Lobelia and 

 some allied exotic genera, in which the corolla is 

 irregular, and the anthers usually more or less distinctly 

 syngenesious. 



OBSERVE the valvate aestivation of the corolla : the 

 early dehiscence of the anthers : the mode of dehiscence 

 of the capsule. 



In some species two kinds of flower are produced 

 one of the usual form, the other (cleistogamous) very 

 minute and with the corolla hermetically sealed over 

 the stamens and pistil, so as to insure self-fertiliza- 

 tion. The root of Campanula Rapunculus is cooked, 

 under the name of Rampion. This is the only esculent 

 species. Several are favourite garden flowers. 



39. Natural Order Ericaceae. The Heath Family. 



DISTRIBUTION. Arctic and temperate zones of both 

 hemispheres, excepting in Australia ; continued along 



N 2 



