414 EUBIACE^. [Oldknlandu. 



shoi'ter than the leaves, nsnally 2-3-flowered ; 'pedicels filiform ; hrads. 

 Huhnlate. Calyx-teeth sulDTilate, nearly equalling the tube when in 

 flower. Corolla white, its tube short. Capsule usually broad, didym- 

 ous or globose or narrowed to the base, not ribbed, the crown not rising 

 above the base of the calyx- teeth. 



An abundant weed throughout the area. Distetb. Common all over 

 India from' the Puniab southward to Ceylon and eastward to Malaya, 

 China, Java, and the Philippines ; on the Himalaya it extends up to 

 6,000 ft., and is found also in Trop. Africa and America. It is an 

 extremely variable plant, and some of its forms cannot easily be dis- 

 tinguished from 0. diffusa. A decoction of this plant is much used by 

 native doctors as a remedy for bilious attacks. 



2. O. diffusa. Boxh. Eort. Beng. 11 ; Fl. Ind. i, 423 : F.B.I, Hi, 65 ; 



CooJce Fl. Bomb, i, 5S9. 



A glabrous diffuse annual with prostrate stems which often root at the 

 nodes. Leaves f-l| in. long, linear, acute, margins usually revolute ; 

 stipules short, laciniate. Peduncles axillary,, solitary and usually 1-flow- 

 ered.. Flowers sessile or nearly so. Calyx-teeth subulate, rather shorter 

 than the corolla-tube, not contigaous when in fruit. Corolla white. 

 Capsule subglobose, smooth, its crown low. 



A very common weed throughout the area. Distbib. Abundant all over 

 India, also in Ceylon and Malaya, extending' to the Malay Islands, the 

 Philippines, China and Japan. 



3. O. crystallina, Roxh. Eort. Beng . 11 ; Fl.Ind.i, 422; F, B. I. %ii, 

 ^5 ; Coolie Fl. Bomh. i, 589 ; Collett Fl. Siml. 230. Hedyotis pumila, Linn 

 ,i.; W. 4^ A' Prod. 414. 



A glabrous or slightly hispid annual with many diffuse flaccid leafy 

 ^branches: Leaves snbsessile, i-| in. long, ovate or elliptic-lanceolate, 

 ■«5ub-acute, flat; stipules bristly. Ped^tncles solitary, usually 1-2- 

 flowered, filiform, shorter than or equalling the leaves. Calyx-teeth 

 large, triangular-lanceolate, their bases touching in fruit. Corolla 

 white, not much exceeding the calyx, its tube short. Capsule obovoid, 

 laterally compressed, glabrous, ribbed, the crown depressed, 



Bundelkhand (Mrs. Bell). Disteib. : Punjab plain below Jamu, and on 

 the W. Himalaya near Simla and in Garhwal. Elsewhere it occurs in 

 - E. Bengal and in the Deccan, and extends to Java. Cystoliths 

 abound in the tissues of this plant, as in some forms of 0. corymhosa. 



4. O. brachiata, HooTc. f. in F. B. J. Hi, 66. Hedyotis brachiata 

 Wight; W. Sr A. Prod. 415. 



A slender glabrous annual. Stem erect, acutely 4-angled. Leaves narrowly 

 linear. Peduncles solitary, axillary, l-flowered a'ld in open dichotomous 

 . terminal cymes. Calyx-teeth subulate, rather shorter than corolla-tube. 

 ,./7.a;Pswle small, broadly didymous, its crown low. 



