SYNGENESIA. SUPERPLUxi. 147 



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

 compressed; pappus simply pilose, dec.ddous, not much 

 longer than the seed, exterior pappus minute and palea- 

 ceous. 



§ 1. St-em simple. 

 Species. I.E. a//K7m77i. 2.* pumilum. Hirsutei stems ag- 

 gregated, 1-flowered, leaves oblong-linear, entire and ses- 

 sile; flower large and hemispherical, before flowering nu- 

 tant; calix very hirsute. Hab. On the plains of the Missouri. 

 Flowering in May. E. hirsitium. Ph. 2. Suppl. p. 742. 

 but this name has been previously employed for another 

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

 indeed, connected at the base, 4 or 5 inches high, 1-flow- 

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

 uated downwards, scarcely 2 lints wide. Flower naked. 

 Cor peduncidate) white, and large aa a Daisy; rays as long 

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

 ternal short, about 12-rayed. 



3. * asperum. Hirsutely scabrous; stem about 2-flow- 

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

 hemisplierical, 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 in 

 common with the leaves. leaves narrow; radical ones 

 spathulate-lanceolate. Peduncles 2 or 3, subtcrminal, tlic 

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

 Rays numerous, white. Pappus 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 few, 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 K. 

 hyasopifolmm of Michaux; 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, more or less, small, 

 and pale yellow. Pappus double? 



6. * glabellnm. Perennial; leaves Iinear4anceolate, en- 

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

 late-lanceolate and nerved; upp^r part of the stem and 



