Classification of Plants 



365 



the odd sepal is at the back, and three petals form the lower 

 lip. The two lower or all the anthers are bearded. 



Weak herbs or small shrubs, with alternate toothed leaves and blue 

 or violet flowers. 



Parastranthus (Inverted flower) has the odd sepal in 

 front and the upper lip of three petals, as there is no twist as 

 in Lobelia. Herbs similar 

 to Lobelia, with yellow, 

 white or blue flowers. 



AA. Corolla regular ; 

 anthers separate — 



B. Capsule opening at 

 the top by triangular lids — 



Lightfootia. — Corolla 

 open to the base, or nearly 

 so. Filaments broad, fringed 

 with soft hairs. Capsule 

 half below the flower. 

 Small shrubs or herbs. 

 Leaves sometimes opposite. 

 Flowers mostly in racemes, 

 blue or white. Eastern and 

 Western. 



Wahlenbergia.— 

 Funnel-shaped or tubular. 

 Filaments broad at base. 

 Stigmas 5-3. Herbs with 

 long forked flower-stalks, 

 axillary or terminal. 

 Flowers blue. The droop- 

 ing flowers protect the pol- 

 len. 



Fig. 347. — Wahlenbergia capensis, 

 A.D.C. The fruit becomes erect on 

 ripening. 



The capsules after flowering stand erect, so that the seeds do not all 

 fall out at once, but blow out a few at a time. Forty-six species. 



Roella. — Corolla large, funnel-, tubular-, or bell-shaped. 

 Ovary 2 -celled. Stigmas 2, thick. Capsule opening by a 

 large pore at the top. 



