192 COMPOSITE, (composite family.) 



obtuso or mncronato, more or less pubescent ; the edges not marpined and com- 

 monly ciliatc. — Sandy pine barrens, Alabama, Geori^ia, and Florida. Septem- 

 ber. —StL'm l°-2° Ligb. Varies greatly in the length and direction of tho 

 pedicels. 



8. L. graminifolia, WiUd. Stem usually smootli, and striped with 

 greener lines ; leaves more or less hairy on the upper surface, and fringed near 

 tlie base; the lowest lanceolate or linear-lanceolate, elongated, the upper linear; 

 heads in spikes or racemes, often very numerous; involucre broadly obconical, 

 7 - 1 4-flo\vcrcd ; the scales oblong-spatulatc, rounded at tlie apex, narrowly mar- 

 gined. (L. gracilis, EIL, a more slender form, with the fewer-flowered heads on 

 longer pedicels.) — Light dry soil, Florida to Mississippi, and northward. Sep- 

 tember. — Stem 2°-G° high. 



9. L. spicata, Willd. Smooth; stem veiy leafy; leaves linear, erect; 

 the lowest very long, obtuse, 3 - 5-ribbed ; the uppermost small and bract-like; 

 heads sessile, cylindrical, 8 -12-flowered, crowded in a long cylindrical spike; 

 scales of the involucre smooth, obtuse, narrow-margined, purjjle. (L. resinosa, 

 iVM/<., a small form with 5 (lowered heads.) — Swamps, Florida to Mississippi, 

 and northward. August and September. — Stem rigid, 2° -5° high. Spikes 

 sometimes 2° - 3° long. Styles elongated. 



10. L. pilosa, Willd. More or less pubescent with long scattered hairs; 

 stem stout ; leaves linear or linear-lanceolate, elongated, hairy ; lieads in a loose 

 simple raceme, 1 - 1 5-flowered ; scales of the turbinate or campanulato involu- 

 cre glabrous, not punctate, Avith slight scarious margins, the exterior narrowly 

 oblong, short, very obtuse ; the innermost linear ; achcnia pubescent, nearly as 

 long as the densely bearded (almost plumose) pappus. — Henderson County, 

 North Carolina, Curtis. — A stout plant, with the heads 8'' -10" long. 



11. L. SCariosa, Willd. Stem stout, pubescent; leaves mostly pubescent, 

 the lowest large, oblong or lanceolate, obtuse, the upper linear, acute ; heads 

 large, 15-40-flowcred, roundish, sessile or pedicellcd ; scales of the involucre 

 spatulate or obovate, rounded at the apex, usually with broad and colored mar- 

 gins ; the outer ones with spreading tips. (L. sphcroidea, Michx.) — Dry light 

 soil, Florida to Mississippi, and northward. September. — Stem 3°-G°high. 

 Heads sometimes I' wide. 



12. L. heterophylla, Brown. Leaves lanceolate, smooth; tho upper 

 ones linear-lanceolate and much smaller; heads about 10, roundish, spiked, 

 crowded, 1 .5 - IC-flowcred ; scales lanceolate, with pointed spreading tips. — Geor- 

 gia to North Carolina, not common. 



^ 2. Root not tuhcroiis ; leaves ohovate or ohloiifj : heads feir-Jlowerfd, rorjjmlied or 

 panicled: pappus minntehj hcardid. 



13. L. odoratissima, Willd. (Ilouxn's Tongue.) Stem licrbaceous, 

 smooth ; leaves Hinooth and often glaucous, obtuso ; tho lowest spatulate-obovato, 

 3 -5-ribbed, tlie upper oval or oblong, small, sessile ; lieads 7 - 8-flowcrcd, dis- 

 posed in an ample K|)reading corynil) or panicle. — Flat pine barrens, FloridB 

 to North r'arf>lina, anil westward. September. — Stem 2° -3° high. Tho 

 witiiering leaves cxhulc tliu odor of vauilla. 



