Coreopsis. LXXV. COMPOSITE. 345 



^ § Rays avd disk yellow. 



3. C. TRICHOSPERMA. Miclix. Tick-sccd SunJlojL^er. 



St. glabrous, square, dichotomous ; irs. pinnately 5 — 7-parted, briefly pe- 

 tiolate, segrn. lanceolate, incised or serrate ; scales of the outer in vol. ciliate, 

 linear, long as the inner ; rays entire, large ; ack. narrow-cuneate, 2-awned. — 

 ® in wet grounds, N. Y., Mass. to Car. A smooth, branching plant, 1 — 2t'high, 

 with a panicle of large, showy, yellow heads. Branches and leaves mostly op- 

 posite. Leaves thin, the upper 3-clelt, subsessile. Leaflets narrow, tapering 

 to a long point, with a lew unequal, remote serratures. Achenia i' long, 

 crowned with stout, hispid awns. Jl. Aug. 



3. C. ARisTosA. Michx. 



Sparingly pubescent ; Ivs. pinnately 5 — 9-parted, segments lance-linear, 

 incisely serrate or pinnatifid ; Ms. small, with conspicuous rays ; outer invol. of 

 10 — 12 linear, green scales, about as long as the inner, villous at base ; awns 

 about as long as the achenium. — Low woods. Western States ! Stem obtusely 

 4-angled, 2 — 3f high. Leaves thin, 4 — 6' long, petioles J — V. Rays 8, orange- 

 yellow, expanding li'. 



p. (C. involucrata. Nuft. ?) Scales of the outer involucre about 13, a third 

 Ipnger than those of the inner. — la. ! 



4. C. TRiPTERis. (Chrysostemma. Less.') 



Glabrous ; st. simple, tall, cor3Tnbose at summit; Ivs. coriaceous, opposite, 

 petiolate, 3 — 5-divided, divisions linear-lanceolate, entire, acute ; hds. small, on 

 short peduncles. — A tall, smooth, elegant species, in dry soils, Southern and 

 Western States, common in la. ! Stem 4 — 8f high, slender, terete. Divisions 

 of the leaves 3 — 5' by | — 1§'. Rays spreading, ^' long. Outer scales linear, 

 obtuse, spreading, as many as the inner. Jl. — Oct. 



5. C. VERTiciLLATA. Wkorl-lcaved Coreopsis. 



Glabrous, branched; Ivs. 3-divided, closely sessile, divisions pinnately 

 parted, segments linear, obtuse ; rays acute or (in cultivation) obtuse and 2 or 

 3-toothed ; ack. obovate, slightly 2-toothed. — % Moist places, Md. and Western 

 States! Stem 1 — 3fhigh. Leaflets apparently verticillate in 6s. Heads with 

 bright yellow rays, near 1' long. Outer scales oblong-linear, obtuse, united at 

 base. Jtme — Aug. 



6. C. PALMATA. Nutt. (Calliopsis. Spreng.) 



Nearly smooth ; st. branched, angled and striate, very leafy to the sum- 

 mit ; Ivs. sessile, deeply 3-clelt, rigid, lobes linear, acutish, entire or again cleft; 

 rays obovate-oblong ; ach. linear-elliptic, inciu-ved. — Dry prairies, W. States ! 

 Stem 1 — 2f high, sometimes much branched. Leaves 1 — 2§' long, some of 

 them undivided, lobes 2 — 4" wide. Heads 1 or several, with yellow rays. 

 Outer scales linear-oblong, obtuse. Jn. Jl. 



7. C. LANCEor.ATA. Lancc-lcaved Coreopsis. 



St. ascending, often branched below; lower Ivs. oblanceolate, petiolate, the 

 7(^^cr lanceolate, sessile, all entire, with scabrous margins; hds. solitary, on 

 very long, naked peduncles; rays 4— 5-toothed at apex ; ach. suborbicular, with 

 2 small teeth. — % Native of the Southern States ! Heads showy. Rays about 

 8, 1' by k'. Jn.— Aug. f 



^^^ Rays or disk purple. 



8. C. DRUMMONDii. T. «fc G. ("Calliopsis. Don.) Drmyimond's Coreopsis. — 

 Pubescent; lis. pinnately divided, sometimes simple, segments (or leaves) 

 oval, entire; scales lanceolate-acuminate; rays unequally 5-toothed, twice longer 

 than the involucre; ach. obovate, incurved, scarcely toothed. — ® From Texas. 

 Stems 10 — 20' high. Rays large, yellow, with a purple spot at base, f 



fi. atrosanguinea^ a garden variety, with dark orange flowers. 



9. C. TiN'CTORiA. Dycr^s Coreopsis. — Lvs. attenuate, radical 07ies subbipinnate ; 

 Ifts. ov^al, entire, smooth ; cauline subpinnate, Ifts. linear; rays two-colored ; ach. 

 naked. — A handsome border annual, native of the Upper Missouri. Stem 1 — 3f 

 high, with light, smooth foliage. Heads with yellow rays, beautifully colored 

 with purple at their base. Flowering all summer, f 



