SENECIO. 213 



involucre oblong-CDnical, glabrous; fl. yellow; fr. silky. 

 Barely [var. radiatus, Koch] there is a single row of ligulate 

 minute revolute marginal flowers. Common. A. I. XII. 

 Groundsel E. S. I. 



2. S. sylvat'icus (L.) ; 1. deeply pinnatifid downy, segments 

 oblong unequally toothed, heads corymbose, involucre downy, 

 outer phyll. very short glabrous (or slightly downy), ray small 

 revolute, fr. silky. E. B. 748. Slightly viscid. St. 12 feet 

 high, erect, more or less branched, hairy. L. narrower than in 

 Sp. 3. Inv. conical ; fl. yellow. S. lividus (Sm.) is a slight 

 var. with the upper 1. more distinctly auricled and clasping. 

 Dry and gravelly places. A. VII. IX. E. S. I. 



3. S. viscosus (L.) ; I. deeply pinnatifid viscid glandidar-hairy , 

 segments oblong unequally toothed and lobed, heads in an irre- 

 gular corymb, involucre viscid, outer phyll. half the length of the 

 inner hairy, ray small, fr. glabrous. E. .#.32. Very viscid. 

 St. 1 2 feet high, much branched, spreading. Heads on long 

 stalks ; inv. cylindrical ; fl. velJow. Waste ground, rare. A. 

 VII. IX. E. S. I. 



#* Heads with spreading rays. Leaves pinnatifid. 



[*& squal'idus (L.) ; /. pinnatifid glabrous, segments linear or 

 oblong distant toothed irregular, heads loosely corymbose, in- 

 volucre glabrous, outer phyll. few small, fr. silky. E. B. 600. 

 S. chrysanthemifoliu's DC. St. much branched, leafy, smooth. 

 L. sessile, often auricled, deeply and irregularly lobed. Heads 

 few, broad. Outer phyll. very small, sometimes very few. 

 Many awlshaped scattered bracts below the heads. Fl. yellow. 

 Walls. Oxford. Bideford, Devon. Cork. [The hybrid with 

 Sp. 1 has been found at Oxford and Cork.] A. VI. X.] E. 1. 



4. S. erucifolius (L.) ; I. pinnatifid margins somewhat revolute 

 cottony beneath, lower 1. stalked, segments linear the lowermost 

 smallest entire and clasping the stem, outer phyll. half as long as 

 the inner, ribs of all thefr. silky. S. tenuifolius Sm. E. B. 574. 

 Creeping slightly. St. erect, 2 feet high, angular, furrowed, 

 somewhat cottony, simple. Lower 1. oblong-ovate, deeply pin- 

 natifid, cottony especially beneath ; segments often linear. Fr. 

 each having a persistent pappus. FL yellow. When the 1. 

 are divided into very narrow segments it is S. tenuifolius Jacq. 

 Calcareous soils. P. VII. VIII. E. S. I. 



5. & Jacobs' a (L.) ; /. glabrous, lower I. oblong-ovate attenuate 

 below lyrate-pinnatifid stalked, stem-1. sessile bipinnatifid, seg- 

 ments spreading oblong deeply and irregularly toothed and cut, 



