416 1 78. Chondrilla. 39. COMPOSITE, A. PL ex. cal. 
Root woody; stem round, upright; radical leaves petioled ; 
panicle divaricated ; flowers bracteated, yellow. 
/3. integrifolia. Upper leaves not cut. 
IV. 179. PRENANTHES. Vaillant. Vrenanth . 
Bractece few, short ; pericline cylindrical ; scales 8 or 
10, equal, membranaceous at the edge; clinanthus with 
hollow dots, bald; flowers 5 or 6 in one series; akenium 
ovate, compressed, streaked, rather rough ; pappus sessile, 
very soft, snow-white, fugacious. — Leaves radical and cau- 
line ; flowers divaricatedly panicled, yellow or purple. 
Prenanthes pulchra. Handsome prenanth . 
Leaves rather rough ; root-leaves runcinate ; stem-leaves 
embracing the stem, ovate, lanceolate, arrowlike at the base; 
panicle corymbosely divaricated, naked. 
Crepis pulchra, Lin. S. P. 1134. 
Lapsana pulchra, Vill. Dauph. 3,163. 
Chcndrilla pulchra, Lamarck Enel. Meth. 277. 
Prenanthes hieraciifolia, Willd. S. P. 3, 1541. 
Prenanthes pulchra, Mcench Meth. 534. 
Alpine rocks ; annual ; June to September. 
Stem slender, spreading; flowers small, yellow; pericline 
pyramidical, bald. 
V. 180. LACTUCA. Pliny. Lettuce. 
Bractece 8 or 10, unequal, pointed ; pericline cylin- 
drical ; scales 8, membranaceous at the edge, pointed ; 
clinanthus flat, bald, with hollow dots ; calathide many- 
flowered, 7-rowed ; akenium ovate, attenuated, compressed, 
streaked lengthways ; pappus stipitate, very soft, hairlike, 
fugacious.— -Stem mostly prickly. 
1. Lactuca sativa . Cultivated lettuce . 
Root-leaves oblong, lanceolate, toothed at the edge; stem- 
leaves heartshape ; flowers corymbose. 
Lactuca sativa, Ger. cm. 306, 1 ; Lin. S. P. 1 1 18. 
Coss Lettuce. 
Cultivated for a potherb and salad ; annual ; June, Sept. 
Lower leaves spreading, oblong, wrinkled; akenium white ; 
pappus-stipes little shorter than the akenium.— Leaves nar- 
cotic ; if eaten in large quantities laxative, especially if 
boiled. 
