- Coreopsis. LXXV. COMPOSITE. 345 
§ § Rays and disk yellow. 
2.C. TRICHOSPERMA. Michx. Tick-seed Sunflower. 
St. glabrous, square, dichotomous; Jvs. pinnately 5—7-parted, briefly pe- 
tiolate, segm. lanceolate, incised or serrate; scales of the outer invol. ciliate, 
linear, long as the inner; rays entire, large; ach. narrow-cuneate, 2-awned.— 
@ in wet grounds, N. Y., Mass. toCar. A smooth, branching plant, 1—2f high, 
with a panicle of large, showy, yellow heads. Branches and leaves mostly op- 
posite. Leaves thin, the upper 3-cleft, subsessile. Leaflets narrow, tapering 
to a long point, with a few unequal, remote serratures. Achenia }/ long, 
crowned with stout,hispid awns. Jl. Aug. 
3. C. artstésa. Michx. 
Sparingly pubescent; Jvs. pinnately 5—9-parted, segments lance-linear, 
incisely serrate or pinnatifid ; Ads. 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 4—1’. Rays 8, orange- 
yellow, expanding 12’. 
8. (C. involucrata. Nutt.?) Scales of the outer involucre about 13, a third 
longer than those of the inner.—Ia. ! 
4. C. rriprEris. (Chrysostemma. Less.) 
Glabrous; st. simple, tall, corymbose at summit; lvs. 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 Ila.! Stem 4—8f high, slender, terete. Divisions 
of the leaves 3—5’ by 3—14’. Rays spreading, 3’ long. Outer scales linear, 
obtuse, spreading, as many as the inner. Jl—Oct. 
5. C. VERTICILLATA. Whorl-leaved Coreopsis. ' 
Glabrous, branched; lvs. 3-divided, closely sessile, divisions pinnately 
parted, segments linear, obtuse; rays acute or (in cultivation) obtuse and 2 or 
3-toothed ; ach. obovate, slightly 2-toothed.—2 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. June—Aug. 
6. C. patmita. Nutt. (Calliopsis. Spreng.) 
Nearly smooth; st. branched, angled at striate, very leafy to the sum- 
mit; Jvs. sessile, deeply 3-cleft, rigid, lobes linear, acutish, entire or again cleft; 
rays obovate-oblong ; ach. linear-elliptic, incurved.—Dry prairies, W. States! 
Stem 1—2f high, sometimes much branched. Leaves 1—232’ long, some of 
them undivided, lobes 2—4” wide. Heads 1 or several, with yellow rays. 
Outer scales linear-oblong, obtuse. Jn. Jl. 
2]. C. LaNcEoLATA. Lance-leaved Coreopsis. 
St. ascending, often branched below; lower lvs. oblanceolate, petiolate, the 
upper lanceolate, sessile, all entire, with scabrous margins; Ads. 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 3’. Jn.—Aug. f 
§§§ Rays or disk purple. 
8. C. prummonpi. T. & G. (Calliopsis. Don.) Drummond’s Coreopsis.— 
Pubescent; Jvs. 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 
B. atrosanguinea, a garden variety, with dark orange flowers. 
9. C. TINcToRIA. Dyer’s Corcopsis.—Lvs. attenuate, radical ones subbipinnate ; 
ifis. oval, entire, smooth ; cauline subpinnate, /fts. 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 
