Obdeb 10.— COMPOSITE. 451 



§ Corollas of the disk dark purple, (a) 



a K;iy flowers yellow with a purple base. Achenia incurved Nos. 1, 3 



a Ray flowers wholly yellow. Achenia not incurved, 2-awned Nos. 3 — 5 



8 Corollas of the disk yellow. Kays rose-colored. Leaves simple Nos. C, 7 



J Corollas of the disk and ray all yellow (disk brownish in No. !)). (b) 



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



b Leaves petiolate, never serrate, — pinnate with lance-linear segments. Nos. 12, 10 



— simple, or rarely auricled below Nos. 14 — 15 



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



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



— Kays wanting No. 21 



1 C. Drummoridii Torn & Gr. Pubescent; lvs. pinnately divided, sometimes 

 simple, segments (or leaves) oval, entire ; scales lanceolate-acuminate ; rays un- 

 equally 5-toothed, twice longer than the invol. ; ach. obovate, incurved, scarcely 

 toothed. — :J) From Texas. St. 10 to 20' high. Rays large, yellow, with a pur- 

 ple spot at base f (Calliopsis, Don.) 



p. atbosanguinea. A garden variety with dark orango fls. \ 



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

 oblong-linear, entire, smooth, cauline subpinnate, lfts. linear ; rays 3-lobed at the 

 apex, ach. "wingless, toothless. — A handsome border annual, native of the upper 

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

 beautifully colored with purplo at their base. Flowering all summer, f ^Calliop- 

 sis DC.) 



3 C. gladiata Walt. Glabrous ; sl. terete, Ivs. thickish, alternate, some of them 

 ternately 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 

 corymbed ; rays 3-toothcd 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, ob- 

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

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

 corymbed, with the rays 3-lobcd at the dilated summit. Jn. — Sept. 



5 C. CBmleri Ell. Glabrous ; st. angular above ; Ivs. opposite, or tho lower 

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

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

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

 always opposite. Jl., Aug. 



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

 the lower very long; hds. lew; outer scales very short, obtuse, inner ovate, 

 acutish; rays wedge-obovate, unequally crenate-lobed. — U A curious species, m 

 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. rosea Nutt. St. branched ; lvs. opposite, l-veined, linear, entire, ped. short ; 

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

 species in wetgrotyids, Mass. (Dr. Robbins), to N. J. St. slender, erect, 8 to 16' 

 high. Lvs. 1 to 2' long, scarcely 1" wide, clothing tho stem. Hds. few, smalL 

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



8 C. senifdlia Mx. Minutely downy or glabrous ; lvs. opposite, teraate, sessile, 

 appearing in whorls of C ; lfts. ovate-lanceolate, sessile, acute, thick ; scales downy, 

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

 to 2f high, angular, strict, Blender. Rays bright yellow, 1' long. Corollas of 

 the disk yellow. Jl., Aug. 



(S. stellata. Lfts. lance-linear, and even linear, mostly glabrous. — Ky. and 

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



9 C. delphinifolia Lam. Glabrous ; lvs. opposite, sessile, divided into lfts. which 

 are each again 2 to b-parted, segm. linear, entire, acute ; disk corollas broion 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" broach Hds. small. 

 Aug. 



10 C. verticillata L. Glabrous branched lvs. 3-divided, closely sessile, divisions 



