PiCRiDiUM.] COMPOSITE. 49i^ 



oblanceo]ate, transversely rugose, 3-ribbed on the faces, beak twice as . 

 long- as the body. Fajpjpus i in., white. 



Siwalik range (Duthie), Dehra Dun (Gamble). Distrib. Punjab on the 

 Salt range, and on the Himalaya from Kashmir and W. Tibet to - 

 Bhutan, ascending to 8,000 ft. ; also in Afghanistan and Baluchistan. 



4. L. polycephala, Benth. # HooTc.f- Gen. ii, 526; F B. I. in, 410. 



A slender glabrous flaccid annual, 6-18 in. high. Radical leaves petioled : 

 3-10 in. long, linear or lanceolate, entire, sinuate-toothed or pinnatifid 

 narrowed to the base ; cauline sessile, oblong or lanceolate, finely 

 acuminate, usually broader than the radical, sagittate at the base with 

 acute auricles, ilowering stems simple or branched. Heads erect, 

 ^-5 in. in diam., many-flowered, arranged in dichotomous or sub- 

 umbellate corymbs. Outer invol-hracts minute ; inner 6-10, linear- 

 oblong, green. Ligules jeUow. Achenes elliptic-lanceolate, hardly com- 

 pressed, smooth, narrowed into a short slender beak, smooth, 10- 

 ribbed. Pa;ppus | in. silvery. 



Dehra Dun (Gamble), Moradabad (T. Thomson), in wet places. Distrib. 

 Punjab Plain, Bengal, and up to 6,000 ft. on the Himalaya from 

 Kashmir to Si kkim also on the Khasia, Hills and in Upper Burma 

 extending to China, and Afghanistan. 



The garden lettuce (Lactuca sativa, L.) is the cultivated variety of L. 

 Scariola, L,, a tall and somewhat prickly herb which is found wild on - 

 the W. Himalaya and in Europe. It is grown to a large extent through- 

 out India, but chiefly for the use of the European population. 



51. PICRIDIUM, Desf. ; Fl. Brit. Ind. iii, 418. 



Perennial or annual glabrous milky herbs. Leaves radical or 

 alternate, toothed or pinnatifid, with often crisped and toothed or 

 spinulose lobes. Heads campanulate, yellow, homogamous. Flowers 

 ail ligulate. Involucre campanulate; bracts many -seriate, thinly 

 herbaceous; innermost subequal, lanceolate, unchanged in fruit; 

 outer shorter, broader, with scarious margins. Eeceptacle flat, naked. 

 Achenes oblong, truncate at both ends, constricted at the tip ; ribs . 

 4-5, thick, transversely rugose. P<2p^w5-hairs many-seriate, slender, 

 simple, soft, white, connate at the base into a deciduous ring. — 

 Species 5 or 6, in Europe, N. Africa and W. Asia. 



P. tingitanum, Besf. Fl. Atlant. ii, 220; F. B. I. iii, 413. 



An annual 6-lS in. high, with a stout glabrous stem. Leaves 1-5 in. long, 

 variable in breadth ; radical elongate-obovate or spathulate, obtuse, 

 sinuate-toothed or pinnatifid, denticulate, rarely entire ; cauline 

 |-amplexicaul, auricled. Heads 1| in. in diam., on peduncles thickened'. 



