238 



POPULAR GARDEN BOTANY. 



ROELLA. 



Gen. Char. {Pentandria Monogynia.) Flowers monopetalous ; 

 corolla funnel-shaped, closed at the bottom with staminiferous 

 valves ; stigma two-cleft ; capsule cylindrical, inferior. 



Named after Roelle, of Amsterdam. R. ciliata is a very 

 pretty evergreen shrub, with blue and white flowers, which 

 is rather a favourite for the greenhouse ; the flowers are 

 large, sessile, and the leaves very narrow r , ciliated, and up- 

 right ; this is quite the best species. The soil should be 

 peat, and light loam. 



L OB ELI A CE2E. 



Exogens, with the calyx superior, five-lobed. Corolla mono- 

 petalous, irregular, five-lobed or deeply five-cleft, inserted in the 

 calyx. Stamens five, inserted in the calyx alternately with the 

 lobes of the corolla ; anthers cohering. Leaves alternate. — 

 Herbaceous plants or shrubs, with milky juice ; natives principally 

 of the Tropics ; properties dangerous from the acrid milk. 



LOBELIA. 



Gen. Char. (Pentandria Monogynia.) Corolla with the tube 

 split on one side, the limb two-lipped, five-parted ; stigma two- 

 lobed, sometimes entire ; capsule two or three-celled, two-valved 

 at the end. 



