SYNGEXESIA. SUPERFLUA. 147" 



pappus. Seed very small, rather smooth, oWong, and 

 compressed; pappus simply pilose, deciduous, not mucli 

 longer than the seed, extenor pappus minute and palea- 

 ceous. 



§ I. Stem simple. 

 Species. \.V.. alpintun. 2.* pumilum. Hirsute; stems ag- 

 gretjated, l-tiowered, leaves oblong-linear, entire and ses- 

 sile; flower large and hemispherical, l^efore flowering nu- 

 tant; caliKvcr\ hirsute. H-va. On the plains ofihe Missouri. 

 Flowering in May. E. hirsutum. Vh. 2- Suppl. p. 742. 

 but this name has been previously enjployed for another 

 species. Obs. Stems several from the same root, often ^ 

 indeed, connected at the base, 4 or 5 inches high, l-flo\v- 

 ercd. Leaves 2 inches, more or less, nearly linear, atten- 

 uated downwards, scarcely 2 lines wide, i'lower naked, 

 (or pedunculate) white, and large as a Daisy; rays as long 

 as the calix, narrow and numerous. Pappus double, in- 

 icinal short, about 12-rayed. 



3. * arperum, Hirsutely scabrous; stem about 2-flow- 

 ered, slender; leaves lanceolate-acute and entire; flower 

 hemispherical, white. Hab. On the plains of the Mis- 

 souri. Flowering in August. Stem solitary, scarcely 12 

 inches high, covered with short and very hispid hairs la 

 common with the leaves. Leaves narrow; radical ories 

 spatlmlate-lanceolate. Peduncles 2 or 3, subterniinal, the 

 lateral one longest, after the manner of E. nudicanlc. 

 Hays numerous, white. Papj>us double, interior simply 

 pilose, of about 20 rays, much longer than the smooth 

 seed, slightly rufescent. 



4. nudicaule. Considerably allied to the preceding, but 

 with the radical leaves smooth, the stem slender and re- 

 markably naked, peduncles proliferous, and ^g-w, the pri- 

 mary ones subfastigiate. Flowers small and hemispheri- 

 cal, nearly white. Pappus double. 



5. * ambiguum. Pubescent and somewhat scabrous; 

 stem terete, leafy and attenuated, few-flowered; leaves 

 elongated, oblong-linear; lower ones subserrulate towards 

 the middle; flowers small and yellowish, by pairs, partly 

 axillar and terminal; calix hemispherical. Hab. In 

 Georgia. May this be E. caroUnianum? certainly not f. 

 hy as opi folium of Michaus; but the stem is simple and not 

 paniculated, and about 18 inches high. Leaves 2 to 4 

 inches long, 2 to 4 lines wide, sessile, and attenuated 

 downwards. Flowers about 8 or 10, n^ore or less, small, 

 and pale yellow. Pappus double? 



6. * glabelhim. Perennial; leaves linear-lanceolate, en- 

 tire, smooth and acute, radical long petiolate, spathu- 

 lalc-lanccclate and n'i:rved; upper part of tlie stem and 



