PHANEROGAMIA 



677 



BRITISH GEXKUA ( 59 ). Campanula, numerous species with showy flowers. 

 Phytcumn, with spike-like inflorescences. The petals separate at the base, remaining 



o 



V\<;. 7">!t. Floral diagram of Campanula 

 medium. (After EICHLEB.) 



FIG. 760. Campanula rotundifolia. a, Flower ; b, the 

 same cut through longitudinally. (Nat. size.) 



united at the tip until the pollen, which is shed in the bud, is swept out by the 

 hairs on the style ; after this the lobes of the 

 stigma, which until now have been closed, ex- 

 pand. Jasione resembles the Compositae in 

 having its flowers in heads and its anthers 

 united to form a tube. 



Family 2. Lobeliaceae. Herbs with milky 

 juice, closely related to the Campanulaceae. 

 Flowers zygomorphic ; carpels 2. The median 

 sepal is anterior and comes below a deep in- 

 cision in the corolla. The normal position is 

 assumed by torsion of the whole flower through 

 180 or inversion of the flower ; these methods 

 also occur in the Orchidaceae (Fig. 761). In 

 Britain Lobelia Dortmanna, an aquatic plant 

 of northern regions which reaches its southern 

 limit in the north of Germany. 



OFFICIAL. Lobelia inflata from N. America 

 (Fig. 762) yields LOBELIA. 



Fie. 701. Floral diagram of Lobelia fulgens. (After 



Kli FII.DR.) 



Fi<:. 7i'>2. Lobelia inflata ( nat. size). 

 OFFICIAL. 



Family 3. Cucurbitaceae ( 60 ). Herbs, without milky juice, climbing by 



