Obdbb 10.— composite 461 



i Coronas of tbe disk dark purple, (a) 



a Bay flowers yellow with a purple base. Achenla Incurved Nos. 1,2 



a Bay flowers wholly yellow. Achenla not incurved, 2-awned Nos. 8— -5 



6 Corollas of the disk yellow. Kays rose-colored. Leaves simple Nos. tf, 7 



i Corollas of the disk and ray all yellow (disk brownish in No. 9). (b) 



b Leaves sessile, divided often so as to appear verticillate Nos. S— 11 



b Leaves petiolate, never seiTate, — ^pinnate with lance-linear segments. Noa. 12, 18 

 — simple, or rarely. auricled below. . .Nos. 1^15 



b Leaves petiolate, serrated. — simple; achenia awns obsolete Nos. 16 — 17 



—compound. — Rays about 8 Nos. 18 — 20 



— Eays wanting No, 21 



1 C. Drumm6ndii Torr. & Gr. Pubescent; Ivs. pinnately divided, eometimes 

 siiDple, segments {or leaves) oval, entire ; scales lauoeolate-acumiiiate ; rays un- 

 eqnaUy b-toothed, twice longer than the invol. ; ach. obovate, incurved, scarcely 

 toothed. — (^ From Texas. St. 10 to 20' high. Rays large, yellow, with a pur- 

 ple spot at base, f (Calliopsis, Don.) 



p. ATEOSAKGUINEA. A garden variety with dark orange fls. f 



2 C. tinctoria Nutt. Glabrous ; Ivs. alternate, radical ones subbipinnate, Itts. 

 oblong-linear, entire, smooth, cauline subpinnato, Ifts. linear ; rays 3-lobed at the 

 apex, aoh. wingless, toothless. — A handsome border annual, native of tho upper 

 Missouri. St. 1 to 3f high, with light, smooth foliage. Hds. with yellow rays, 

 beautifully colored with purple at their base. Flowering all summer. \ (Calliop- 

 Bia DO.) 



3 C. gladidta Walt. Glabrous ; st. terete, Ivs. thiokish, alternate, some of them 

 ternatehj divided, the lower lance-oblong, long-tapering to a clasping petiole, upper 

 lance-linear, acute ; outer scales lance-ovate ; ach. fringed with 2 slender awns. — 

 Moist soils in barrens, N. Car. to Fla. St. 2 to 3f high, slender. Hds. several, 

 oorymbed ; rays 3-tootbed at the dilated apex, yellow ; disk purple. Aug., Sept 



4 C. angustifolia Ait. Glabrous ; st. square ; Ivs. opposite, sometimes the lower 

 alternate, undivided, the lower spatulate, long-petiolate, upper linear, spatulate, oh- 

 iuse ; outer scales ovate, obtuse ; ach. wing-fringed, the 2 awns very sliort. — Moist 

 soils, in barrens, S. Car. to Fla. and La. Sts. slender, 2f high. Hds. several, 

 oorymbed, with the r.sys 3-lobed at the dilated summit Jn. — Sept 



5 C. CEmleri Ell. Glabrous ; st. angular above ; Ivs. opposite, or the lower 

 alternate, lance-ovate, narrowed to a clasping petiole, upper lanceolate ; outer 

 scales oblong, oliuse ; ach. margined, cUiate, the 2 awns very short. — W. Ga. and 

 Fla., near the Chattahoochie. Sta. 2f high. Lvs. rather thick, entire, the upper 

 always opposite. Jl., Aug. 



6 C. nudata Nutt Glabrous, very slender ; lvs. few, terete, rush-like, allemate, 

 the lower very long; hda. few; outer scales very short, obtuse, inner ovate, 

 acutish; rays wedge-obovate, unequally crenate-Iobed. — If A curious species, in 

 shady swamps, Ga. and Fla., near Savannah to St Mary's and Apalachicola. Sts. 

 2 to 3f high. Lvs. 1 to 10' long. Rays somewhat fan-shaped, rose-purple, 

 spreading 20". Apr. — Jn. 



7 C. rdsea Nutt St branched ; lvs. opposite, 1-veined, linear, entire, ped. short ; 

 outer scales very short; rays oblong, obscurely tridentate. — U A very delicate 

 species in wet grounds, Mass. (Dr. Robbins), to N. J. St slender, erect, 8 to 15' 

 high. Lvs. 1 to 2' long, scarcely 1" wide, clothing the stem. PIds. few, small 

 Rays rose-color, varying to white. Disk light yellow. Jl., Aug. 



8 C. senifolia Mx. Minutely dovmy or glabrous ; lvs. opposite, temate, sessile, 

 appearing in whorls of 6 ; Ifts. ovate-lanceolate, sessile, acute, thick ; scales downy, 

 obtuse ; rays oval-oblong, entu-e. — Sandy soils, Va., Ky. to Ga., common. St 1 

 to 2f high, angular, strict, slender. Eays bright yellow, 1' long. Corollas of 

 the disk yellow. Jl., Aug. 



;8. stellXta. Lfls. lance-linear, and even linear, mostly glabrous. — Ky. and 

 Tenn. Lvs. 2 to 3' long. (0. stellata Nutt) 



9 C. delphinifdlia Lam. Glabrous; lvs. opposite, sessile, divided into Ifts. which 

 are each again 2 to 5-parted, segm. linear, entire, acute ; disk corollas brown at 

 summit ; outer scales linear, inner ovate, all obtuse ; rays acute. — Barrens, Va. to 

 Fla. and Ala. St 1 to 2f high. Lfts. 1 to 2' long, 1 to 3" broad. Hds. small 

 Aug. 



10 C. verticiUata L, Glabrous bran<*ed lvs. 3-divided, closely Bessile, divisions 



