SECT. II 



PHANEROGAMIA 



673 



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 



Fig. 718. — Floral diagram'of Canvpanula 

 inedmm. (After Eichler.) 



Fig. Il^.—Campamda rotuncUfolta. a, Flower ; 6,;the 

 same cut through longitudinally. (Xat. size.) 



closed, expand. 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 Cam- 

 panulaceae. Flowers zygomorphic ; carpels 

 2. The median sepal is anterior and comes 

 below a deep incision 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. 720). In Britain Lobelia 

 Dortmanna, an aquatic plant of northern 

 regions which reaches its southern limit in 

 the north of Germany. The family is chiefly 

 distributed in the tropics and in the southern 

 temperate zone. 



Official. — Lobelia inflate/, from N. 

 America (Fig. 721) yields lobelia. 



Family 3. Cucurbitaceae (~). — Herbs, 

 without milky juice, climbing by means 



Fig. 720. — Floral diagram of Lobelia 

 fulgens. (After Eichler.) 



Fig. 721 .—Lobelia inflata (§ nat. size). 

 Official. 



of tendrils ; the cordate or palmately lobed leaves bear coarse hairs 



2 X 



