78 GENTIANACEM. [Swbbtia. 



F. B. I in, 125 ; Watt F. D ,• Collett Fl. Siml. 327 ; Burkill in Journ. As. 

 Soc. Beng. ii, No. 8 (1905, 373. S. elegans, Wall. Cat 4376. S. pul- 

 chella, Buch.-Ham. I. c. (nomen nudum ; Wall. Cat. 4375. Clarke in 

 F. B. L I. c. ; in Journ Linn. Soc. xxv, 48. S. amnis, Clarke in F. B. I. 

 iv, 126. Ophelia angustifolia, D. Don. in Trans. Linn. Soc, xvii, 524. 

 O. porrigens, D. Don. ex G. Don- Gen. Syst. iv, 178. 0. pulchella, D. 

 Don in Trans. Linn Soc. xvii, 524. O. pretensis, Edgew. in Trans. 

 Linn, xx, 86. O. afflnis, W. Sf A. O. elegans, Wight. 



Stems erect, 1-3 ft., much 3-chotomously branched, 4 gonous, the angles 

 narrowly winged. Leaves 2-2| in. long, narrowly lanceolate, acute, 1-3 

 nerved. Flowers white or bluish, 4-merous. Ca lyx 4- partite ; segments 

 lanceolate or oblong linear, acute, often much longer than the corolla. 

 Corolla tube oblong or ovate-lanceolate, acute, often veined with blue 

 and marked with blue or black dots ; each lobe with a solitary impressed 

 circular gland near the base, naked or partially closed by a small scale. 



Vae. 1 Bamiltnniana, Rurkill.— Sepals equalling or slightly longer than 

 the corolla. — Dehra Dan (Dathie). Disteib. Himalaya, westwards 

 to Hazara and eastwards to Sikkim, up to 6,000 ft., extending to Assam 

 and China. 



Vak. 2. pulchella, Burkill.— S. pulchella, Buch.-Ham. S. affinis, Clarke 

 in F. B.I. iv, 126. Ophelia porrigens G.^ Don. — Sepals shorter than 

 the corolla. Corolla lobes erect and connivent in young fruit. Plant 

 about 1-ft. high.— Dehra Dun (Gamble); Siwalik range in the Mohand 

 Pass (Eoyle), Sub-Siwalik tract (Edgeworth).— Distrib. Himalayas, 

 westwards to Dalhousie, up to 10,000 ft. and eastwards to Sikkim ; 

 also on the Khasi-Naga Hills, Chota-Nagpur, the Central Provinces 

 and southwards along the E. Ghats to S. India, extending to C. and 

 Upper Burma, the Shan States and China. 



Vab. 3. elegans, Clarke. S. elegans, Wall.— Corolla-lobes somewhat spread- 

 ing in young fruit. Plant dwarf — Oudh, Terai. in shisham forest 

 (Wallich) ; f orests in the Kheri district of N. Oudh (T. Thomson and 

 Duthie). 



S. angustifolia and its varieties all possess more or less the bitter pro- 

 perties of the true Chiretta (S. Cldrata, Buch.-Ham. a species widely 

 distributed on the Himalaya), they are not, however, extensively made 

 use of medicinally except where S. Chirata is unobtainable. 



S. LIMNANTHEMUM, S. P. GmeL; Fl. Brit. Ind. iv, 131. 



Aquatic herbs, floating or creeping. Stems erect or runner-like 

 or resembling petioles. Leaves orbicular, elliptic or ovate, deeply- 

 cordate or peltate, entire or obscurely sinuate. Peduncles clustered 

 at the nodes ; flowers white or yellow, dimorphic, solitary or in pairs 



