246 cojiPosiT^. (composite faiiilt.) 



small heads in a flat-topped corymb. Flowers yellow. Leaves scattered, oblan- 

 ceolate or linear, 1 -3-nerved. (Dedicated by DeCandolle to Br. Jacob Biijelow, 

 author of the Florula Bostoniensis, and of the American Medical Botany. ) 



1- B. nud^ta, DC. — Low pine barrens, New Jersey (rare), and south- 

 ward. Sept. 



21. CHETSOPSIS, Nutt. Golden Aster. 



Heads many-flowered, radiate ; the rays numerous, pistillate. Scales of the 

 involucre linear, imbricated, without herbaceous tips. Eeceptacle flat. Achenia 

 obovate or linear-oblong, flattened, hairy. Pappus in all the flowers double, the 

 outer of very short and somewhat chaffy bristles, the inner of long capillary 

 bristles. — Chiefly perennial, low herbs, woolly or hairy, with rather large often 

 corymbose heads terminating the branches. Disk and ray-flowers yellow. 

 (Name composed of xpi"''ofi gold, and o'^is, aspect, from the golden blossoms.) 



* Leaves narrowly lanceolate or linear : achenia linear. 



1. C. gramillifblia, Nutt. Silvery-silky, ^ith. long close-pressed hairs; 

 stem slender, often with runners from the base, naked above, bearing few heads ; 

 leaves lanceolate or linear, elongated, grass-like, nerved, shining, entire. — Dry sandy 

 soil, Delaware to Virginia, and southward. July - Oct. 



2. C. faleita. Ell. Stems (4' -10' high) very woolly; leaves crowded, 

 linear, rigid, about 3-nervedf entire, somewhat recurved or scythe-shaped, hairy, or 

 smooth when old, sessile; heads (small) corymbed. — Dry sandy soil on the 

 coast, pine barrens of New Jersey to Nantucket and Cape Cod, Mass. Aug. 



* * Leaves oblong or lanceolate, entire or slightly serrate, mostly sessile, veined, not 

 nerved ; achenia obovate, flattened. 



3. C. gOSS^pina, Nutt. Densely woolly all over ; leaves oblong, obtuse (1'- 

 2' long) ; heads larger than in the next. — Pine barrens, Virginia and south- 

 ward. Aug. - Oct. 



4. C. Marid;Iia, Nutt. Silky with long and loeak hairs, or when old smooth- 

 ish ; leaves oblong ; heads corymbed, on glandular peduncles. — Dry barrens, 

 from S. New York and Penn., southward, near the coast. Aug. - Oct. 



5. C. villbsa, Nutt. Hirsute and villous-pubescent ; stem corymbosely 

 branched, the branches terminated by single short-peduncled heads ; leaves 

 narrowly oblong, hoary with rough pubescence (as also the involucre), bristly-ciliate 

 toward the base. — Dry plains and prairies, Wisconsin to Kentucky, and west- 

 ward. July - Sept. 



22. INULA, L. Elecampaj^e. 



Outer scales of the involucre sometimes leaf-like. Achenia terete or 4-sided. 

 Pappus simple, of capillary bristles. Anthers with 2 tails at their base. Other- 

 wise much as in the last genus. (The ancient Latin name.) 



1. I. Hel^nium, L. (Common Elecampane.) Stout perennial (3°-5° 

 high) ; leaves large, woolly beneath ; those from the thick root ovate, petioled, 

 the others partly clasping ; rays very many, narrow. — Eoadsides, escaped 

 from gardens. Aug. — Heads very large. Root mucilaginous. (Nat. fromEu.) 



