252 
Composite. 
and more imbricated); further: Is slightly sinuate- 
dentate, the stem, at the same time, taller (v. dentiferum 
N. Beitr. III. 13).—b. helveticum (H. flexuosum lielveticum 
Fr.! II. speciosum Rap. not Hornem,, H. Rapini Grml. 
B. S. M.* *) Ls fairly glabr., the rad. often partly withered 
at the time of flowering, the caul, numerous, long, with 
almost entire and often almost parallel edges, the base 
broad, almost half-clasping. Invols darker, slightly villous, 
with stellate hairs. —Alp., subalp. and Jura; b. Alps of 
Zermatt and Gruyere. 6 . scorzonerifolium Vill. 1377. 
— Ls distinctly toothed, the rad. withered at the time 
of flowering (especially in cultivated pis); the caul. 5 —S 
(in the cultivated pi. as many as 15), long-lanceolate, 
the lower ones narrowed gradually at the base Invol. 
Is (villous and covered with stellate hairs) ending in a 
rather blunt point. A critical species, intermediate between 
H. dentatum and H. scorzonerif.— Alp., very rare; Binn- 
thal! Zermatt? Bagnethal! Briilltobel, Ct. Appenzell 
(Zoll.); not Chasseral. 7, 8 . speciosum Hornem. 1378. 
39 (37). Ls distinctly glaucous, the caul., when present, nar¬ 
rowed at the base ....... 40 
— Ls green or only bluish underneath (gen. hairy on both 
sides. Invol. ls with few stellate hairs, the inner ones 
finely acuminate) . . . . . . 42 
40- Invol. ls faintly villous, with isolated pale glands, and 
pale edges. — Alp., rare; Grindelwald. Oeschinensee, Kan- 
dersteg, Rosenlaui, Unterwald. 7 
bernense Christener! 1379. 
— Invol. ls without glands . . . . .41 
41. Ls gen. hairy on both sides, toothed, the caul. 0 — 2 
(rarely 3), reduced or only one developed. PI. gen. weaker 
than H. villosum and II. dentatum, less villous than the 
former. The almost leafless specimens ought not to be 
confounded with H. piliferum which differs in its ls 
not being petioled, narrower and entire, and in its 
bearded-villous invol. H. subnudum Schl.I Heg. not 
Frol., H. Schraderi dentatum Gaud.! H. dentatum pu- 
siolum Fr.! H. pilosum Frol.—Alp. and subalp.; G. \V. 
Y. B. 0. U. A. 7 . . . Gaudini Christen. 1380.**) 
— Ls gen. glabr. above, coarsely toothed, the caul. 2—4, 
fairly developed (sometimes as large as the rad.), oval- 
lanceolate. PI. less hairy than H. villosum. . Stem often 
*) H. chloraefolium Arv.-Touv. ! (Simplon) which is also almost 
glabr., resembling that form, but with shorter, broader Is.— H. callianthum 
Arv.-Touv. ! differing from II. scorzonifer. in its stronger villosity, its broader 
caul, ls and its rather larger heads; near Lourtier in Wallis. 
*) H. incisum Hoppe Fr. nec Koch, with large heads becoming blackish, 
is perhaps an H. murorum-villosum. Bernina-Heuthal. 
