64 
S. palustris. Marsh Sow-Thistle. Fig. 631. 
Leaves runcinate; upper ones arrow-shaped, with very long lobes. 
Involucrum hairy. River-sides ; rare. 7-8 ft. Perenn. July. Yellow. 
(§) E.B. 1.935. E.B. 2.1066. II.fyAm. 213. Bab. 195. Lind. 156. 
S. arvensis. Corn Sow-Thistle. Fig. 632. 
Creeping at the root. Lower leaves runcinate; upper ones entire. 
Involucrum hairy. Corn-fields; common. 3-4 ft. Perenn. Aug. 
Golden yellow, (f) E.B. 1. 674. E. B. 2. 1067. H. Am. 213. 
Bab. 195. Lind. 156. 
S. oleraceus. Sow-Thistle. Fig. 633. 
Leaves more or less pinnatifid; lower ones with foot-stalks. Invo¬ 
lucrum smooth. A common weed. 1-3 ft. Ann. June-Oct. Yellow, 
(f) E. B. 1.843. E.B. 2. 1068. II.fyArn. 213. Bab. 195. Lind.156. 
S. asper. Rough Sow-Thistle. Fig. 634. 
Leaves with rounded bases; lower ones sessile, spiny at the margin. 
A mere variety of oleraceus. (f) E. B. Supp. 2765. E. B. 2. 1068*. 
H. ^Arn. 214. Bab. 195. Lind. 328. 
Genus 5. Lactuca. 
L. virosa. Wild Lettuce. Fig. 635. 
Leaves horizontal, oblong, finely toothed. Stem prickly. Flowers 
in panicles. Hedge-banks; common. Very narcotic. 3-4 ft. Bienn. 
Aug. Yellow, (f) E.B. 1. 1957. E.B. 2.1069. H.^ Am. 212. 
Bab. 194. Lind. 156. 
L. Scariola. Prickly Lettuce. Fig. 636. 
Leaves nearly erect, lobed, prickly. Flowers in a terminal panicle. 
Waste places. 2-3 ft. Bienn. Aug. Yellow, (f) E.B. 1.268. 
E.B. 2. 1070. II. fy Am. 212. Bab. 194. Lind. 156. 
L. saligna. Small Lettuce. Fig. 637. 
Root-leaves lanceolate, entire; upper ones linear-lanceolate, sagittate. 
Flowers nearly sessile. Near the sea. 6 in.-l ft. Bienn. Aug. 
Pale yellow, (f) E.B. 1. 707. E. B. 2. 1071. II. & Am. 212. 
Bab. 194. Lind. 15 7. 
Genus 6. Prenanthes. 
P. muralis. Ivy-leaved Wall-Lettuce. Fig. 638. 
Leaves lyrate; terminal lobe large and angular. Florets 5. Walls 
and cliffs. 1 ft. Perenn. July and Aug. Pale yellow, (f) E. B. 
1. 457. E. B. 2. 1072. II. Am. 212. Bab. 194. Lind. 157. 
P. hieraciifolia. Hawk-weed Wall-Lettuce. Fig. 639. 
Leaves oblong-obovate, downy, toothed. Panicle corymbose, spread¬ 
ing. Near Forfar. 1ft. Ann. June-Sept. Yellow, anthers brown, (f) 
E.B. 1.2325. E.B. 2.1073. H.fyArn. 214. Bab. 197- Lind. 158. 
Genus 7. Leontodon. 
L. Taraxacum. Dandelion. Fig. 640. 
Leaves runcinate, smooth, all springing from the root. Outer scales 
of involucrum reflexed. A common weed. Diuretic. 6 in. Perenn. 
April-Oct. Bright yellow. (|) £’.21.1.510. E.B. 2.1074. H.fy 
Am. 216. Bab. 195. Lind. 157• 
