CL. XIX.] SVNGENESIA POLYGAMIA SUPERFLUA. 325 



anthers united into a cylindrical tube. Germen inversely egg- 

 shaped, small. Style thread-shaped, as long as the stamens ; 

 stigmas two, oblong, spreading. Seed inversely egg-shaped ; 

 seed-down simple, sessile. Receptacle naked, slightly convex. 

 Name from senex, an old man. 395. 



* Florets all tubular. 



1. S.vulgfiris. Common Groundsel. Flowers destitute of ray; leaves 



pinnatifid, toothed, half embracing the stem. Stem about six inches 



high, branched, with numerous corymbose, yellow flowers. Annual : 

 flowers from February to November : but individuals may be got in 

 flower through the winter: grows in cultivated and waste ground : com- 

 mon. Eng. Bot. vol. xi. pi. 747. Eng. Fl. vol. iii. p. 428. 1190. 



** Flowers rayed, the ray rolled back. 



2. S. viscdsus. Stinking Groundsel. Rays revolute ; leaves half em- 

 bracing, pinnatifid, clammy; outer calyx loose, nearly as long as the 



inner ; stem branched. The whole plant clammy, generally covered 



with dust, with a disagreeable smell : stem about a foot high : flowers 

 yellow. Annual : flowers from June to October : grows in waste ground, 

 and among rubbish : not uncommon. Eng. Bot. vol. i. pi. 32. Eng. Fl. 

 vol. iii. p. 429. 1191. 



3. S. sylvdticus. Mountain Groundsel. Rays revolute ; leaves sessile, 

 pinnatifid, lobed, minutely toothed ; scales of the calyx linear ; stem 



erect, straight, branched, corymbose. Stem from six inches to two 



feet high or more. It emits a. disagreeable odour. Annual: flowers in 

 July and August : grows in dry barren pastures : common. Eng. Bot. 

 vol. xi. pi. 784. Eng. FL vol. iii. p. 430. A variety, with the leaves dis- 

 tinctly eared and embracing the stem, is the S. Lividus, Green-scaled 

 Groundsel. Eng. Bot. vol. xxxv. pi. 251-5. Eng. FL vol. iii. p. 430. 



1192. 

 *** Flowers with spreading rays ; leaves pinnatifid. 



4. 5. tfnuifiilius. Hoary Ragwort. Ray spreading, with oblong, mi- 

 nutely toothed corollas ; leaves pinnatifid, paler and cottony beneath ; 



stem erect, loosely cottony. Stem two or three feet high, furrowed : 



leaves alternate, sessile : flowers yellow. Perennial : flowers in July 

 and August : grows in woods, hedges, and by roads, in England: frequent. 

 Eng. Bot. vol. viii. pi. 574. Eng. FL vol. iii. p. 432. 1 193. 



5. S. Jacoba'a. Common Ragwort. Ray spreading, somewhat revo- 

 lute, with oblong, toothed corollas; leaves lyrate.twice pinnatifid, divari- 

 cate, toothed, smooth; seeds hairy. Stem about two feet high, purple 



at the base, branched : flowers golden-yellow, very numerous, in corymbs, 

 emitting a strong smell of honey. Perennial: flowers in July and 

 August : grows in dry pastures, and by roads : common. Eng. Bt. 

 vol. xvi. pi. 1130. Ens. FL vol. iii. p. 438. 1 194. 



6. S. aqufiticus. Marsh Ragwort. Ray spreading ; with elliptical, 

 toothed corollas ; leaves lyrate, serrate, smooth, the lower inversely egg- 

 shaped, undivided ; seeds smooth. Stem about two feet high, purple : 



flowers larger and fewer than in the preceding species, scentless, in 

 corymbs. Perennial: flowers in July and August : grows by the sides 

 of rivers, and in wet pastures : common. Eng. Bot. vol. xvi. pi. 1131. 

 En*. Fl. vol. iii. p. 434. 1195. 



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