Tribulus. ] Geraniacee. 35 
Page 194.— 
Tribulus terrestris Linn. Gorkatu, S. Nerungali, T. 
(F. Lewis). 
Page 195.— 
XXVITI.—GERANIACE/E. 
Add to key: 
Petals contorted : 
Herbs with capsular fruit ; . Oxatis & BIOPHYTUM. 
Trees with fleshy fruit. : . Averrhoa. 
2. Oxatis Linn, 
Flowers yellow. , : : : = 2. OW CORNICUERTA, 
Flowers pinkish-mauve : 
Petiole glabrous; leaf lobes cuneate x 22 -O. latifolia. 
Petiole hairy; leaf lobes rounded . . 3. O. corymbosa. 
1. O. corniculata Linn.; Wilmott in Journ. Bot. LIII, pp. 172- 
174 (1925). Puliyari, T. (F. Lewis). 
220). vaTirovia H. B. K. Nov. Gen. and Sp: V, p. 237° t. 467 
(1815-25); Petch in Ann. Perad. VII, p. 50 (1919) ; Calder in Rec. Bot. 
Surv. Ind. VI, p. 335 t. 8 (1919). O. violacea Trim. Hort. Zeyl. p. 13 
(1888); Petch in Ann. Perad. V, p. 541 (1914) non Linn. Jonoxalis 
latifolia Rose in Contr. U.S. Nat. Herb. X, p. 113 (1906). 
Perennial bulbous herb; leaves all radical, trifoliate; 
petioles about g in., glabrous; leaflets broadly deltoid with 
cuneate lobes, 4 in. long, 2 in. broad, glabrous; scapes nearly 
1 ft. long; infl. umbellate, minutely bracteate; fls. pedicellate; 
sepals elliptic-oblong, obtuse; petals mauve; stamens 10, 
cuneate at base; ovary glabrous, 5-celled, with 4 ovules in 
each cell; styles 5. 
Not as common as O. corymbosa. Introduced by the Botanic 
Gardens prior to 1879. 
Native of Mexico. 
3. O. corympBosa DC. Prodr. I, p. 696 (1824); Petch in Ann. Perad. 
mere, 54%.(1914);.L c.. VII, p. 80 (1919); Calder. |. c. pz 337 &..¢- 
O. latifolia Trim. 1. c. non H. B. K.; O. violacea Trim. Fl. Ceyl. I, 
p- 997 (1893) non Linn. 
Perennial bulbous herb; leaves all radical, trifoliate, 
stipulate; petioles usually 4-5 in. long, pubescent; leaflets 
broadly obcordate usually 4-2 long, pubescent; scapes about 
8 in. long; pubescent; cymes umbelliform, with minute 
bracts; fils. pedicellate; sepals elliptic, acute; petals mauve; 
stamens 10, united at base; ovary glabrous; styles 5. 
Introduced and now common up-country, where it is sometimes 
called Manickwatte weed. First recorded by Ferguson from Kotmale 
in 1882. 
Native of S. America (Calder). 
Part I. 
