COMPOS I TJE. 
167 
St. 6 — 12 in. high, branching. Heads small ; involucre oblong- 
conical glabrous, llorets yellow, fr. with silky hairs. — /3. radiatua 
(Koch) ; with a single row of ligulate minute revolute marginal 
florets. — Common. A. L — XII. Groundsel. 
2. S. viscosus (L.) ; I. deeply pinnatifid viscid glemdulor-haitff : 
segments oblong unequally toothed and lobed, heads in an irre- 
gular corymb, involucre viscid outer scales half the length of the 
inner, ray small revolute,/; - . (jlahrous. — E. B. 32. — St. 1 — 2 feet 
high, much branched, spreading, viscid. Heads on long stalks, 
involucre cylindrical, florets yellow. — Waste ground on a calca- 
reous soil. A. VII. — IX. 
3. S. syloaticus (L.) ; 1. deeply pinnatifid downy, segments ob- 
long unequally toothed, heads corymbose, involucre downy outer 
scales very short, ray small revolute, fr. silky. — E. B. 748. — 
St. 1 — 2 feet high, erect, more or less branched, hairy. L. nar- 
rower than in the last. Involucres conical, florets yellow. — 
(i. lividus ; upper 1. distinctly auricled and clasping, lower with- 
out (?) auricles. E. B. 2515. — Dry and gravelly hills. A. 
VII.— IX. 
** Heads ivith spreading rays. 
*4. S. squalidus (L.) ; I. pinnatifid glabrous : segments linear 
or oblong distant toothed irregular, heads loosely corymbose, in- 
volucre glabrous, outer scales few and small, fr. silky. — E. B. 600. 
— St. much branched, leafy, smooth. L. sessile, often auricled, 
deeply and irregularly lobed. Heads few, broad. Outer involu- 
cral scales very small and sometimes very few. St. with many 
awlshaped scattered bracts below the heads. Florets yellow. — 
Walls at Oxford and Bideford, Devon. A. VI— X. E. 
5. S. erucif olius (L.) ; I. pinnatifid margins somewhat revolute 
downy beneath the lower ones stalked, segments linear the lower- 
most smallest entire and clasping the stem, outer involucral scales 
half as long as the inner, fr. all silky. — E. B. 574. S. tenuifolius 
Sm. — Root creeping. St. erect, 2 feet high, angular, furrowed, 
somewhat cottony, simple. Lower 1. oblong-ovate deeply pin- 
natifid, the segments often linear downy on both surfaces but 
particularly beneath. Fr. all equally provided with persistent 
pappus. Florets yellow. — Calcareous soils. P. VII. VIII. 
G. S. Jacobcea (L.) ; loioer I. oblong-obovate attenuated below 
lyrate-piniialifid stalked, stem 1. sessile bipinnatifid : segments 
spreading oblong deeply and irregularly toothed and cut lower- 
most much divided clasping, outer involucral scales scattered 
few lax fr. hairy those of the ray glabrous. — E. B. 1130. — Root 
fleshy. St. 2 — 3 feet high, smooth, striated, branched, leafy. 
Corymb with erect branches. L. glabrous. Fr. of the ray quite 
glabrous, the pappus deciduous. Florets yellow. — Waste ground. 
P. VII.— IX. Ragwort. 
