LEONTODON. 189 
Heads in small alternate tufts forming long clusters. Florets 
yellow.—Chalky places and near the sea. B. VII. VIII. Least 
Lettuce. E. 
2. L. virosa (L.); %. horizontal oblong auricled and clasping 
mucronate-dentate or sinuated, beak equalling the black fruit.— 
E. B.1957.—St. 24 feet high, leafy, branched above, panicled. 
Heads scattered with numerous heartshaped acute bracts. Plant 
full of acrid milky juice.—Dry banks. B. VII. VIII. Acrid 
Lettuce. E.S. 
3. L. Seariola (L.); J. upright arrowshaped at the base and 
clasping sinwate, beak equalling the pale fruit E. B. 268.—St. 
2—5 feet high, leafy, panicled. Heads scattered with numerous 
heartshaped bracts. Juice rather less acrid than in the preceding. 
Waste places, rare. B. VII. VIII. Prickly Lettuce. 
** Beak short. Leaves with a smooth keel. 
4. L. muralis (DC.) ; florets 5, 1. lyrate-runcinate angled and 
toothed clasping, terminal lobe largest angled, beak much shorter 
than the fruit, heads panicled.—Prenanthes Sm., E. B. 457.— 
St. erect, a foot high, smooth, round, hollow. Florets bright 
yellow. Fruit black—Banks and oldwals. A.? VII. ELL 
43. Lrontopvon Linn. 
1. L. Taraxacum (L.); 1. runcinate toothed, fr. limear-obovate 
blunt and squamosely muricated at the summit longitudinally 
striated with a long beak.—Stalks single-headed, radical. Florets 
yellow. L. all radical, very variable, glabrous or shghtly hispid. 
The following varieties are considered as species by DeCandolle, 
but are connected by intermediate forms.—I. Outer involucral 
scales reflexed or patent.—«. L. Taraxacum (Sm.) ; outer scales 
linear defleed, fr. yellow its upper half muricated, glabrous or 
woolly at the crown of the root, 1. runcinate broad. E. B, 510. 
—. Taraxacum levigatum (DC.); outer scales erect-patent ovate, 
fr. reddish-yellow muricated at the summit, beak with a thickened 
and coloured base, |. runcinate-pimnatifid with unequal teeth.— 
y. T. erythrospermum (DC.); outer scales lanceolate adpressed or 
patent, fr. bnght red muricated at the summit, beak with a 
thickened and coloured base, |. runcinate-pmnatifid with unequal 
teeth and intermediate smaller ones. Lowermost |. sometimes 
obovate and dentate not runcinate when it becomes T. cbovatum 
DC.—II. Outer scales adpressed.—d. L. palustre (Sm.); outer 
scales ovate-acuminate, fr. pale yellow or brown muricated at the 
summit, l. oblong and entire sinuate-dentate or runcinate ; or 
outer scales ovate-lanceolate or (L. leptocephalum R.) lanceolate. 
E. B. 553.—Very common, y. in dry places, 4. in bogs or damp 
places. P. IIL.—X. Dandelion. 
