220 
Composite. 
auricles, entire or 2-fid. Achenes all pubescent.—Road¬ 
sides, slopes; more common in western than in eastern 
Switz. 7, 8, later than S. Jacobsea erucifolius L. 1216. 
— Leaflets of the outer invol. gen, only 1—2, several times 
shorter than the invol. Rt-stock short, at last prsemorse 10 
10. Ls slightly gray-webbed underneath, lyrate, with a very 
large terminal segment. S. subalpinus Reut. ex Rap.; 
S. cordifolius-Jacobsea. *) — Among the parent pis, but 
by preference in eastern Switz. 7 * lyratifolius Rchb. 1217. 
— Ls glabr. underneath or slightly webbed-woolly. Achenes, 
at least those of the circumference, glabr. Type of S. 
Jacobcea ......... 11 
11. Achenes of the disk very villous. Lower ls gen. withered 
at flowering-time, the middle ones pinnatipartite with 
lobes separating from the rachis almost at a right-angle, 
with multifid auricles. — Yar. like 1216 with ray-fls short 
or (v. flosculosus Jord.) 0.—Road-sides, hills; distrib., 
but rarer in western Switz. 6, 7 . . Jacobaea L. 1218. 
— Achenes of the disk glabr. or faintly pubescent. Lower 
ls gen. still green at flowering-time, the middle ones 
lyrate-pinnatifid, (the lower sometimes undiv.) . 12 
12. Stem terminated by a corymb, with erect-spreading 
branches. Ls light green; lateral segments springing 
obliquely from the rachis. Stem lower than in the last; 
heads larger. S. pratensis Richt. (a larger form). —Damp 
fields; not everywhere (wanting in G. L.). 6; earlier than 
the last. aquaticus Huds. 1219. 
— Stem div. almost to the middle, almost in a corymb 
with spreading or divergent, long, unequal, 
fairly leafless branches. Ls dark green; lateral segments 
springing almost at a right angle or slightly bent for¬ 
wards. Heads smaller than in the last. S. erraticus Bert. 
—Misox: Briigg.; Gex, not far from Geneva: Michalet. 
7, later than the 2 last . . barbareifolius Krock. 1220. 
18 (5). Stem 1-headed, head large, rarely 2—3 rather smaller 
heads. Invol.-leaflets rather pointed. Achenes villous. 
Ls very white-tomentose.—High Alp.; W. (Simplon, Saas, 
Zermatt). 7. uniflorus All. 1221. 
— Stem with several heads smaller than in the last; achenes 
glabr., rarely slightly pubescent at the top . . 11 
14. Ls white-tomentose.—High Alp.; T. \V. O. U. 7 
incanus L. 1222. 
*) Gremblich distinguishes, in the Tyrol, a S. Reisachii (cord.-Jacob.) 
achenes glabr. at the edges, and a S. lyratifolius (cord.-erucifol.), all the 
achenes pubescent. 
