4 A gtate, somewhat pubescent, in - 
oe Subgenus * Krwarteti: + Achenia Se. deco lc 
mith» narrow ese : 
430 DESCRIPTIONS OF NEW SPECIES 
_ Pyrrhopappus grandiflorus. Borkhausia grandiflora, Nutt. in Journ. Acad. 
Nat. Sci. Philad., Vol. VIL, p. 69. Pyrrhopappus scaposus, Decand. Prod., 
Vol. VIL, p. 144. ee achenium, seen in a young Btate, exhibits a short ros- 
trum. 
__ Has. In the plains of, Pet (Dr. Pitcher;) also in Mexico, (Berlandier.) 
Pyryhopappus Capobrsanus 8. * maximus; smooth, leaves for the most part 
laciniately pinnatifid, acuminate; capitulum very many-flowered. 
Has. In Arkansa. T'wo to three feet high; the root apparently perennial; the lower leaves a 
foot long, with divaricate, linear Mal — of the — —— twice its length. The 
pappus decidedly simple, not in the lea th Sepals with 
Adateral, obtuse tooth at the | it, as in the site nas eantaa of the stigma short, 
‘rather obtuse, and pubescent. 
TARAXACUM. -(Haller.) 
Laraxacum * montanum; very smooth; leaves spathulate-oblong, nearly en- 
tire or runcinately toothed; scape smooth, much longer than the poayen cali- 
, Short and appressed, the scales ovate, or lancer 
seni Reanccous margins; sepals not corniculate, about twelve: AC henium spl- 
no, "y nlgticteeag at the summit, scarcely half the length of the rostrum. 
‘On the banks of > Platte, i in ‘subsaline situations towards the Rocky Mountains, and in 
- Has. O 
the highest valleys of the Colorado of the West. Allied very nearly to 7. obovatum and 7. colli- 
num. Perennial. Leaves three or four i in e 
nel long, half to three-quarters of an inch wide, erect; 
here pinnatifid, mostly obtuse,. dbo teeth hallow and simple. Base of the stem, in in} 
only. Seape six to ten inches high, perfectly smooth: 
Flowers rather small. 
MACRORHYNCHUS. (Lessing.) 
Oss. “he genus ought probably to be ee to the © species with an alate 
winged acheniutn. } | 
alated, ten-ribbed, the 
mings undulated; the exterior series —— pag the interior smooth, 
