THE DAISY FAMILY. 297 



II, Leaves simple, oblong, or egg-shaped, more or 

 less deeply jagged or lobed ; often runcinate, 

 and sometimes inclining to pinnatifid. 



Stems many-flowered. 

 Leaves all, or nearly all, from the root. 

 Leaves rough on both sides ; stem glabrous ; 



basket hairy C. Cchimon Cat's-ear. 



Leaves glabrous, or nearly so. 

 Leaves oblong, wavy, toothed ; small bracts 



among the florets 5. Smooth Cat's-ear. 



Leaves long, narrow, somewhat pinnatifid ; no 



bracts among the florets 4. Autumnal Hawkbit. 



Leaves dispersed over the whole plant. 

 Leaves cleft into three to five long, lanceolate, 



toothed segments 34. Three-Lobed Bidens. 



Leaves lyrate, or lobed, and partly pinnatifid. 

 a. Florets all tubular ; scales of the basket with 



black tips 47. Common Groundsel. 



h. Florets both tubular and Ugulate ; the latter 



minute and recurved. Plant fragrant . . 48. Heath Groundsel. 

 c. Florets all Ugulate. 

 Florets only four to five. Leaves lyrate, purple 

 underneath, the terminal lobe angled. 



Panicle branched in all directions. ... 7. Lyrate Lettuce. 

 Florets more than four or five. 



A. Basket angular ; florets sixteen ; radi- 



cal leaves Ij'rate, green on both 



sides 20. Nipplewort. 



B. Basket not angular. Achenia angular. 



Plant covered with stifl", spreading hairs. 13. Bristly Crepis, 

 Plant glabrous, or nearly so. 

 Leaves runcinate and pinnatifid, the 

 lobes of the upper ones cui-ving 

 towards the apex, their edges 



entire 11. Smooth Hedge Ckepis. 



Leaves runcinate, the upper ones oval, 



and sharply auricled 12. Marsh Ceepis. 



c. Basket not angular. Achenia flattened. 

 Leaves chiefly runcinate, the edges 

 toothed, and more or less thorny. 

 a. Basket hairy at the base ; auricles 



short, broad, and rounded 8. Corn Sow-thistle. 



6. Basket haiiy at the base ; auricles 



narrow and pointed 10. Marsh Sow-thistle. 



c. Basket glabrous ; flowers lemon co- 

 loured, inconspicuous 9. Common Sow-thistle. 



