KEY. 285 



axillary and terminal. Stem-leaves oblong or lanceolate, 

 partly clasping, the uppermost rigid, minute, the lowest and 

 radical ones runcinate. Oichorium Intybus, L. 



091. Outer pappus of 5 broad chaffy scales, the inner of 

 as many alternate, slender bristles. Heads small, terminat- 

 ing the scapes and branches. Leaves chiefly radical, lyrate 

 and toothed, sometimes roundish ; the other leaves narrower. 



Krigia Virginica, Willd. 



Outer pappus of numerous, very small, bristle- 

 chaffy scales, the inner of many long, capillary bristles. 

 Heads rather showy, single at the summit of the scapes or 

 naked peduncles. Cynthia. 



99^, Pappus bright white 997 



Pappus reddish, tawny, or dirty white 993 



993. Flowers yellow 994 



Flowers bluish, or cream-color turning bluish. 

 Achenia contracted above into a short neck or beak. Leaves 

 irregularly pinnatifid, sometimes, or rather often, runcinate, 

 coarsely toothed (the upper ones undivided). Heads in a 

 large compound panicle. Herb tall and stout, 3-12 feet high. 

 Mulgedium leucophaeum, D. C. (998). 



994. Achenia not beaked 995 



Achenia long-beaked, nearly terete. Pappus soft. 

 Heads solitary, terminal on both stem and branches, rather 

 large. Leaves oblong or lanceolate, entire, cut, or pinnatifid; 

 those of the stem sessile and somewhat clasping. 



Pyrrhopappus Carolinianus, D. C. 



995. Flowers whitish, rose-purple, or purplish 996 



Flowers yellow. Stems sometimes scape-like. 



Leaves entire, or toothed. Heads single, or panicled ; flow- 

 ers yellow. Hieracium. 



{Hawk-weed.) 



996. Flowers rose-purple, about 5 in each head. Stem 

 almost leafless, scape-like, erect, slender, once or twice 

 forked above. Leaves linear-subulate. Heads few, erect, on 

 long peduncles. Radical leaves 6-10 inches long. 



Lygodesmia juncea, Don. 



