Senccio.] COMPOSITE. 1 17 



naked. Flowers discoid or radiant. Pappus simple, sessile. 

 — Name ; scnex, an old man. See Erigeron. 



Syngenesia. Superflua. 



H< Flowers without rays. 



1. S. vulgaris, Linn. Common Groundsel. Leaves pinna- 

 tifid, toothed, clasping at the base; flowers in clustered corymbs, 

 destitute of a ray. Br. Fl. L. p. 360. E. Fl. v. u\.p. 428. E. 

 Bot. t. 747. 



Waste ground, fields, and hedges. Fl. all summer. ©. — A span 

 to a foot high. Flowers small, yellow. 



% * Flowers rayed, with the ray rolled bach. 



2. S. viscosus, Linn. Stinking Groundsel. Ray revolute; 

 leaves pinnatifid and viscid ; scales of the involucre lax, hairy ; 

 stem branching, diffuse. Br. Fl. 1. p. 360. E. FL v. iii. p. 

 429. E. Bot. t. 32. 



Waste and sandy grounds near Dublin, as well as about Cork, Bel- 

 fast, and other pi-aces. Fl. July, Aug. 0. — Steins one to two feet 

 high, much branched and spreading ; remarkable for its viscid hairs and 

 fetid smell. 



3. S. sylcaticus, Linn. Mountain Groundsel. Ray revo- 

 lute ; leaves sessile, pinnatifid, lobed and toothed, often eared 

 at the base ; outer scales of the involucre very short, glabrous ; 

 stem erect, straight; flowers corymbose. Br. Fl. 1. p. 360. 

 E. Fl. v. iii. p. 430. E. Bot. t. 748. 



Waste grounds and dry upland mo?sy soils. Tittour, near Round- 

 wood. Waste ground near Cork ; Mr. J. Drummond. Near Lame ; 

 Mr. Templeton. Fl. July. ©.—One foot high. Leaves finely divided. 

 Plant with a disagreeable smell, but not so powerful as S. viscosus. 



* * * Floioers xoith patent rays. Leaves pinnatifid. 



4. S. tenuifolius, Jacq. Hoary Ragwort. Ray spreading, 

 its corollas oblong; leaves closely pinnatifid, their margins 

 somewhat revolute, pale and downy beneath ; stem erect, 

 loosely cottony ; all the fruit hairy. Br. Fl. 1. p. 361. E. Fl. 

 v. iii. p. 432. E. Bot. t. 574. 



Hedges and road-sides, both on the north and south side of Dublin, 

 frequent. Fl. July, Aug. if,. — Allied to the following. Leaves 

 deeply pinnatifid, dark green above, whitish beneath. Flowers bright 

 yellow. 



5. S. Jacobcea, Linn. Common Ragwort. Ray spreading, 

 oblong, toothed ; leaves doubly pinnatifid, somewhat lyrate, 

 with spreading, toothed, smooth segments; seeds of the disk, 

 silky. Br. Fl. 1. p. 361. E. Fl. v. iii. p. 433. E. Bot. t. 

 1130. 



