St 
GROUP I. 
Flower-heads purple, numerous, but each one containing. 
( only 5 or 6 florets. ; 
{ Eupato'rium cannabinum. Hemp Agrimony. 
Heads yellow, each of numerous florets, the outer aoa 
often large and leaf-like. J 
Bidens. ur-Marigold. 
GROUP II. 
Leaves narrow, entire, grass-like; outer bracts very Bees 
and narrow ; heads yellow or purple. : 
Tragopo’gon. 
Leaves not grass-like. 
Heads bright blue; pappus of short scales. 4 
( Cicho'rium In'tybus. Chicory. ) 
~Heads yellow ; pappus of hairs or none. 
Fruits without any pappus at their summit. 
Stalk swollen and hollow under the flower-head ;~ 
f leaves all from the root. 
L Arnos’eris pusil'la. Lamb’s Succory. 
Stem leafy ; stalks of the flower-heads slender, 
not swollen. 
L Lap'sana communis. Nipplewort. 
Fruits bearing a pappus of hairs. 
Pappus with the hairs (or most of them) 
( ‘feathered ” with minute lateral hairs. 
eat 4 or 5 outermost bracts very wide, enclos- 
| ing the rest. ee 
§ Helmin'thia echioi‘des. Ox-tongue. 
Outermost bracts smaller than the rest. 
co leafy, rough with more or less ote Bar 
| hooked hairs. 3 J 
L Pi'cris hieracioi'des. 
Stem rarely leaty; hairs not hooked. 
oe scales among the florets and fruits >) 
| hairs on the leaves simple. J 
| Hypocheeris. Cat’s-ear. 
~No such scales; hairs often forked, or,- 
if simple, leaves with very narrow BEE 
L ments. Leon'todon. Hawkdit. 
Pappus-hairs all simple, not feathered with lateral ) 
hairs. 
— 
Sarees? Pe Nes 
