228 45. COMPOSITE. 



E. B. 707. St. 2 feet high, slender, wavy, slightly branched. 



Heads in small alternate tufts forming long clusters. Flowers 

 yellow. Chalky places and near the sea. B, VII. VIII. E. 



2. L. virosa (L.) ; upper I. horizontal oblong auricled and 

 clasping mucronate- dentate or sinuate, beak equalling the black 

 fruit. E. B. 1957. St. scabrous, 24 feet high, leafy, branched 



above, panicled. Heads scattered, with many heartshaped acute 

 bracts, rarely runcinate. Plant full of acrid milky juice. Dry 

 banks. B. VII. VIII. Acrid Lettuce. E. S, 



3. L. Serriola (L.) : upper L upright arrowshaped at the base 

 and clasping sinuate, beak equalling the pale fruit. E. B. 268. 

 St. slightly scabrous below, 2 5 feet high, leafy, panicled. 

 Heads scattered, with many heartshaped acute bracts. Juice 

 rather less acrid than in Sp. 2. Waste places, rare. B. VII. 

 VIII. Prickly Lettuce. E. 



** Beak short. Leaves with a smooth keel. 



4. L. murdlis (Fresen.) ; florets 5, 1. lyrate-runcinate angled 

 and toothed clasping terminal lobe largest, beak much shorter 

 than the fruit, heads panicled. Prenanthes L. E. B. 457. 

 St. erect, a foot high, smooth, round, hollow. Flowers bright 

 yellow. Fruit black. Banks and old walls. P. VII. E. I. 



43. TARAX'ACUM Juss. Dandelion. 



1. T. officindle (Weber) ; L runcinate toothed, fr. linear-obo- 

 vate blunt and muricate at the top longitudinally striatewith a 

 long beak. Stalks single-headed, radical, hollow. Fl. yellow. 

 L. all radical, very variable, glabrous or slightly hispid. 

 a. Leontodon Taraxacum (L.) ; outer phyll. linear deflexed inner 

 ones simple at tip, fr. yellow its upper half muricate, crown of the 

 root glabrous or woolly, 1. runcinate broad. E. B. 510. /3. T. 

 Icevigatum (DC.) ; outer phyll. erect-patent ovate, inner gibbous 

 or appendaged at tip, fr. reddish yellow muricate at the top, 

 beak with a thickened and coloured base, 1. runcinate-pinnatih'd 

 with unequal teeth. y. T. erythrospermum (DC.) ; outer phyll. 

 lanceolate, adpressed or patent, inner gibbous or appendaged at 

 tip, fr. bright red muricate at the top, beak with a thickened 

 and coloured base, 1. runcinate-pinnatifid with unequal teeth and 

 intermediate smaller ones. Lowermost 1. sometimes obovate 

 and dentate (or runcinate when it becomes T. obovatum DC.). 

 Sy. E. B. 803. [fl. T.udum (Jord.) ; outer phyll. at first adpressed 

 ultimately spreading, inner almost simple at tip, styles bright yellow, fr. 

 yellowish green, muricate-aculeate at the top.] *. L. palustre (Sm.) ; 



