166 DICOTYLEDONOUS. 



3. L. Graminifolia. 5i?eOT simple, glabrous, or slightly hairy. Leaves h- 

 near, long, with the midrib hairy and the margin scabrous. Flowers in a ter- 

 minal spike, with bracts as long as the involucre. Involucre cyhndrical, with 

 about 6 florets ; scales pubescent along the margin, mucronate- Corolla cov- 

 ered with glandular dots. Seeds hairy. Pappus uncolored. 



Purple. %. Sept. — Oct. In pine barrens. 2-4 feet. 



4. L. Tenuifolia. Stem simple, slender, glabrous, lower leaves crowded, 

 narrow, or Hnear, slightly hairy at the base; upper leaves, setaceous, scatter- 

 ed; Flowers in long racemes, with leafy pedicels. Involucre oblong, about 

 5-flowered ; scales membranaceous along* the margins. Corolla with glan- 

 dular dots. Seeds hairy, pappus not colored. 



Purple. %. Aug. — Oct. Dry pine barrens. 2-4 feet. 



5. L. Cylindracea. Stem slender, glabrous. Leaves linear, long, narrow, 

 glabrous, upper ones pubescent along the margin, lower ones alternate at the 

 base. Flowers few, in a terminal spike ; involucre cyhndrical, containing 14- 

 20 florets ; scales oblong, abruptly acuminate, pubescent along the margin. 

 Corolla glandular, pappus, plumose. 



Purple. %. Aug.— Sept. Dry, sandy soils. Middle Ga. 1-2 feet 



6. L. Heterophtlla. jSt'ewi simple, glabrous. Zeares lanceolate, glabrous, 

 upper ones smaller, hnear-lanceolate. Flowers in spiked heads, squarrose ; 

 scales of the involucre lanceolate, acute, naked. 



Purple. %. Aug. — Oct. So. Carolina, Georgia. 2-3 feet, 



7. L. PiLOSA. Stem simple, pubescent, streaked. Leaves linear, the low- 

 er linear-lanceolate, pubescent, fringed near the base. Flowers in long, leafy 

 racemes ; the lower peduncles compound ; involucre oblong, with 10-14 flo- 

 rets ; scales fringed, Seeds hairy, pappus not colored. 



Purple. %. Aug. — Oct. Pine barrens of Car. &Ga. 



8. L. Gracilis. Stem slender, pubescent, streaked. Leaves linear, gla- 

 brous, slighdy fringed at the base; upper leaves much srnaller than the lower. 

 Flowers in terminal racemes, peduncles hairy, with a fe^y scales ; involucre 

 generally with seven florets; scales obovate, dotted, cihate, colored at the 

 summit. Seeds hairy ; pappus colored. 



Purple. 1^. Sept. — Oct. Dry pine barrens. 2-3 feet. 



9. L. Secunda. Ston rechning, usually curved, pubescent, lower leaves 

 Unear-lanceolate, somewhat fringed at the base. Flowers in long ter- 

 minal racemes, secund ; peduncles with 1-2 subulate scales; involucre with 

 4-5 florets, generally ten leaved. Leaves glabrous, pubescent along the mar- 

 gin. Seeds hairy. Pajjpus slightly plumose. 



Purple. % August— Sept. Dry sand hills middle Car. & Ga. 2-3 ft. 



10. L- Resinosa. Stem glabrous, radicle leaves, long, cauline leaves, nu- 

 merous, crowded, all linear. Flowers in spikes, bracteate ; involucre with 

 obtuse scales, resinous, becoming hoary. Seed villous. 



Purple, % August— Sept. Pine forests of Car. 1-2 ft. 



11. L. Elegaxs. Stem erect, very pubescent. Leaves linear-lanceolate, 

 scabrous beneath, cartilaginous along the margins. Flowers in a compact 

 cyhndrical raceme ; peduncles with small leaves; involucre with 5 florets; 

 leaves about 12, lanceolate, villous, interior ones colored. Seeds villous ; pap- 

 pus colored. 



Purple, 'll- August— Sept. Dry soils. 3-5 ft. 



12. L. ScARiosA. Stem erect, hairy. Leaves lanceolate, scabrous along 

 the margin, pubescent, lower ones very long, attenuate at the base. Flowers 

 in a termi!ir.l raceme; peduncles short, pubescent ; involucre, with 14 florets; 

 scales \\l :; jcarious margins, slightly colored at the summit. Seeds hairy, 

 pappus colored. 



Purple. % August— Oct. Dry soils. Common. 2-4 ft. 



13. L. Sphervidea. Stem erect, pubescent. Leaves lanceolate, acute, 

 slightly coriaceous, glabrous, the lower broader than the upper ones. Flow- 

 ers in terminal racemes ; involucre nearly globular, with many florets, scales 



