COMPOSITAE. 999 



oblong to oval, narrowed at the base, narrowly winged; pappus of 2 short teeth. 

 In drv woods. Va.. N. Car. to Ga. and Ala. Aug.-Sept. 



7. Coreopsis verticillata L. Whorled Tickseed. (I. F. f. 3931.) Peren- 

 nial; stem stiff, much branched, slender, leafy, 3-6 dm. high. Heads numerous, 

 3-4 cm. broad; involucre hemispheric, or short-cylindric in fruit, glabrous, its 

 outer bracts linear, obtuse, commonly somewhat shorter and much narrower than 

 the ovate-oblong inner ones; rays 6-10, spatulate-oblong, obtaise; disk dull yellow; 

 achenes oblong^ narrowly winged, 4 mm. long; pappus of 2 short teeth. In dry 

 soil, western Unt. to northern Mich., Md., N. Car., Ky., Neb. and Ark. June- 

 Sept. 



8. Coreopsis lanceolata L. Lance-leaved Tickseed. (I. F. f. 3932.) 

 Perennial; stem slender, 3-6 dm. high. Leaves glabrous, the lower and basal 

 ones slender-petioled, spatulate or narrowly oblong, very obtuse, 5-15 cm. long, 

 entire, or with 1-3 lateral obtuse entire lobes; heads few or solitary on elongated 

 slender peduncles. 4-6 cm. broad, showy; peduncles often 3 dm. long; involucre 

 depressed-hemispheric, its bracts glabrous or ciliate, lanceolate or ovate-lanceolate, 

 the outer narrower than the inner, but nearly as long; rays 6-10, cuneate, 3-7- 

 lobed; achenes oblong, about 2 mm. long; pappus of 2 short teeth. In dry or 

 moist soil, western Ont. to Va., Fla., La. and Mo. May-Aug. 



9. Coreopsis pubescens EU. Star Tickseed. (I. F. f. 3933.) Perennial; 

 stem leafy, little branched, or simple, erect. Leaves pubescent or glabrous, 

 entire, or some of them 3-5-lobed or divided, the basal and lower ones slender- 

 petioled. obovate-oval, obtuse, the upper short-petioled or sessile, 5-7 cm. long; 

 heads few, 2.5-3.5 cm. broad, long-peduncled; involucre depressed-hemispheric, 

 glabrous, star-like, its lanceolate obtuse or acute outer bracts nearly as long as but 

 much narrower than the ovate inner ones; rays 8-10, cuneate, lobed at the apex; 

 achenes similar to those of the preceding species or broader. In dry woods, Va. 

 to 111. and Mo., south to Fla. and La. June-Aug. 



10. Coreopsis crassifolia Ait. Thick-leaved or Hairy Tickseed. 

 (I. F. f. 3934.) Perennial; stem ascending, little branched, 2-5 dm. high. Leaves 

 rather thick, hirsute or pubescent, all entire, the lower and basal ones petioled, 4-7 

 cm. long, 8-20 mm. wide; stem-leaves few, short-petioled or sessile, obtuse or 

 acutish, narrower; heads few, 3-5 cm. broad, borne on slender, puberulent 

 peduncles of ten 3 dm. long, similar to those of C. lanceolata, as are the rays, 

 involucral bracts and achenes. Dry soil, 111. to La., east to S. Car. and Fla. 

 May-Aug. 



11. Coreopsis auriculata L. Running or Lobed Tickseed. (I. F. f. 

 3935.) Perennial; stoloniferous; stems weak, very slender, decumbent or ascend- 

 ing, 1.5-4 dm. long, little branched, or simple. Leaves thin, entire or pinnately 

 3-5-lobed or 3-5-divided, the terminal segment entire and much larger than the 

 lateral ones, the lower and basal more or less pubescent, with slender pubescent 

 petioles; stem-leaves few, petioled or sessile, mostly obtuse; heads 2-4 cm. broad, 

 slender-peduncled; outer bracts of the involucre oblong, narrower than the mostly 

 ovate and acute inner ones; rays 6-10, cuneate, about 4-toothed, yellow; achenes 

 oval, the wings involute and thick. In woods, Va. to Ky., south to Fla. and La. 

 May-Aug. 



12. Coreopsis grandifldra Hogg. Large-flowered Tickseed. (I. F. 

 f. 3936.) Perennial (or sometimes annual ?); stem glabrous, usually branched above, 

 3-9 dm. high. Leaves, or most of them, 1-2-pinnately parted, or the lower entire 

 and slender-petioled ; segments of the lower stem-leaves oblong, obtuse, the termi- 

 nal one larger than the lateral; segments of most of the stem-leaves linear or even 

 filiform; petioles ciliate; heads commonly several, 3-5 cm. broad, long-peduncled; 

 outer bracts of the involucre lanceolate, narrower and mostly shorter than the oval 

 or ovate-lanceolate inner ones; rays 6-10, achenes oblong, broadly winged when 

 mature, the projections on the inner face usually large; pappus of 2 short scales. 

 In moist soil, Kans. and Mo. to Tex., east to Ga. May-Aug. 



13. Coreopsis tripteris L. Tall TlCKSEED. (I. F. f. 3937.) Perennial; 

 stem glabrous, much branched above, 12-25 dm. high. Leaves petioled. glabrous, 

 or very nearly so, firm, the lower all divided into lanceolate entire acute rough-mar- 

 gined segments, which are 5-12 cm. long. 6-25 mm. wide and pinnately veined; 

 uppermost leaves lanceolate, entire; heads numerous, slender-peduncled, 3 4 cm. 



