COMPOSITJE. 85 



SPECIES VI.-S E N E C I O JACOBS A. Linn. 

 Plate DCCLV. 

 Jieich. Ic. Fl. Germ, et Helv. Vol. XVI. Tab. C:\ILXIV. Fig. 2. 

 Mlot, Fl. Gall, et Germ. E.ksIcc. No. 46. 



Perennial. Rootstock rather fleshy, slightly oblique, not creep- 

 ing. Stem stiff, straight, corymbosely branched towards the apex, 

 with the branches erect. Eadical leaves obovate, pinuatipartite or 

 Ivrate-pinnatipartite ; lower stem-leaves stalked, upper ones semi- 

 amplcxicaul, embracing the stem with palmately-cut auricles ; all 

 firm, much undulated, glabrous or sub-glabrous, bi-pinnatipartite, 

 with the primary segments pinuatipartite, the secondary ones 

 toothed. Corymbs combined into a large terminal compound 

 flat-topped dense corymb. Anthodes erect. Pericline cylindrical- 

 hemisplicrical, sub-glabrous ; outer phyllaries few, not one-fourth 

 the length of the inner, subulate. Achenes of the circumference 

 glabrous, tliose of the disk liipsid. Plant glabrous or sub-glabrous, 

 or more rarely arachnoid-hairy on the stem, midrib of leaves, and 

 base of phyllaries. 



In pastures, borders of fields, waste places, &c. Very common, 

 and generally distributed. 



England, Scotland, Ireland. Perennial. Late Summer 

 and Autumn. 



Stem solitary or 2 or 3 together, 18 inches to 4 feet high, much 

 branched towards the tip in large examples. Eadical leaves vari- 

 able in the relative size of the terminal lobe to the lateral segments, 

 which become smaller towards the base of the petiole ; stem-leaves 

 always much divided, and undulated somewhat like those of curled 

 parsley. Anthodes very numerous, f to 1 inch across the ray. 

 Peduncles with bracts. Pericline as broad as long, generally gla- 

 brous. Plorets bright - yellow, those of the ray rather narrow, 

 numerous, mostly l-nerved, rarely absent. Achenes oblong-cylin- 

 drical, those of the ray destitute of the hairs which are so common in 

 this genus, and which are present on those of the disk. Plant gene- 

 rally glabrous, deep-green. 



.Mr. J. Waddy finds near Churchtown, co. Wexford, a form with 



the anthodes destitute of ray-Horets, and has favoured me with 



recent specimens. It has been also observed by Mr. U. C. Watson 



in Sutherland. ^ -r, i 



Common liar/wort. 



French, Senegoti Jacohie. German, Jacobs Baldgreis. 

 All wlio walk along country lanes or roadsides in July and August must oflen 

 have seen this conimou plaut, with its heads of bright goldeu-ytllow flowers, and 



