Ruellia. DIDVNAMIA ANGIOSPERMIA. 51 



Roots often biennial. Stems herbaceous, ascending, or 

 erect, ramoui*, jointed, a little flattened, bairy, from two to 

 three feet high. Branches opposite, like the stem, and also 

 nearly erect. Leaves, an exterior, opposite, sessile pair 

 at each joint, within these, and sub-alternate with the spines, 

 several small ones in a verticel ; all are linear-lanceolate ; 

 margins often revolute, hairy, I may almost say bristly ; 

 size various. Spines six in each verticel, between the leaves 

 and flowers, awl-shaped, spreading, and a little recurved. 

 Floivers verticelled, numerous, sessile, large, of a bright-blue, 

 or in some varieties, rose-coloured. Bractes lanceolate, mar- 

 gins and outside bristly. Calyx of two pairs of nearly 

 equal leaflets, clothed with soft hair. Corol two-lipped j 

 lips nearly equal ; upper two-parted, with the division emar- 

 ginate ; the under one three-parted, with the divisions also 

 emarginate, in the under a coloured body like a large oblong- 

 anther. Filaments connected at the base ; second pair larger 

 than usual in the genus. Anthers sagittate. Stigma subulate, 

 involute, with a fissure on the upper side. 



19. R. hirsuia. R. 



Annual, erect. Leaves lanceolar, entire, hirsute. Flowers 

 sessile, crowded in both axills. Bractes numerous, linear, 

 and with the five acute segments of the calyx very hairy. 



A native of Chittagong. 



20. R. ohovata. R. 



Annual. Leaves short-petioled, from oval to obovate, cu- 

 neate, obtuse, hairy. Flowers axillary, crowded, sessile. 

 Bractes and calyx ciliate. Corol ringent. Capsule cylin- 

 dric, smooth, many-seeded. 



Nir schulli. Rheed. Mai. ii. t. 46. 



Found in moist situations in the province of Chittagono-. 

 Flowers about the close of the rains, and the seed ripens in 

 February and March. 



This species certainly agrees much better with VanRheed's 



G2 



