1*30 COMrOSlT.E. (coMroSITK FAMILY.) 



<lular. — Suinly piiii! lianeiis, coiiiimjii. Sept. — Stem l''-2°liigb. Lowest 

 leaves 4' -8' I'.nij;. 



•2. C. Oligantha, <'lia]iiii. St.'m nrailv nukcil and ;:laii<liiliir above, the 

 lower |)art, like the linear or lanci-nlalc icaxcs, silkv witli ajipresseil .shining 

 hairs; heails 1 -4, on lonjj creet j;lan<liilar i)e(Juneles, ralhi-r large; iuvohurc 

 U'll shajieil, the scales jjlaiulular-pulteseeiit. — Low pine barrens, Floriila. 

 April -Mav. — IStciii 1^ high. Stem-leaves ehvsjtiiig; those of the root elon- 

 gate.! . 



3. C. pinifolia, Kll. Smonlh; stt-m rigiil ; leaves linear, rrowded, rigid ; 

 corymb large ; seales of the iiivolnere wonlly at the summit. — Higli saud-hills 

 in tiie western districts of Georgia (A7//ci//). — Stem l^^-2^ '''S''- Stem 

 leaves 4' -6' long, the uppermost filiform. Heads large. Exterior pa]>pus 

 somewhat chaffy. 



* * Leaves veini/, oblomj or lanreoliite ; the lowest narrowed at the base, the upper 

 sessile : achenia obovute, compressed. 



4. C. Mariana, Nutt. Perennial; stem simjile, covered with loose silky 

 deciduous iiairs ; lowest leaves .spatulate-oblong, entire or .sligiitly serrate ; the 

 upper ones lanceolate, sessile, entire ; corynil) small, mostly simple and umbel- 

 late, cone-like iu the bud; peduncles and involucre glandular. — Sandy j)ine 

 barrens, Florida, and northward. Sept. — Stem l°-2° high. 



5. C. trichophylla, Nutt. Biennial; stem very leafy, mostly branili- 

 iug, villous with loose silky hairs; leaves oblong or lanceolate, the earliest 

 ones crowded, obtuse and den.sely villous, the upper mostly acute and often 

 smoothish ; corymb large, comj)ound ; peduncles and involucre smoothish. — 

 Var. HYSsoi'iFOLiA (C. hy.s.sopifolia, Nutt.) has narrow-linear and smooth 

 leaves, excei)t tlie tuft at the ba.se. — Dry ])ine barrens, Florida to North 

 Carolina. Sept. — Stem 2° -3° high, commonly ascending. Leaves l'-2' 

 long. 



6. C. gOSSypina, Nutt. Biennial, densely villous and hoary throughout ; 

 leaves oblong, obtuse, entire; the lowest spatulate, the tip])er sessile; corymb 

 simple. (C. dentata. Ell., leaves larger, the lowest sinuate-toothed. C. de- 

 cunil)ens, Flora, inflorescence glandular.) — Dry sandy soil, Florida, and 

 nortliward. Sojit. — Stem 1°- 2° high. 



7. C. SCabrella, Torr. & Gray. Biennial, glandular-scabrous through- 

 out; the earliest leaves only villous; lowest leaves clustered, spatulate, entire, 

 the others brf)adly or narrowly lanceolate, l'-2' long; coryml> compound; 

 involucral scales linear, acute, rigid; pappus fulvous; aclienia silky. — Dry 

 sandy soil near the coast, Florida, (^)ct. 



8. C. villosa, Nutt. Kough-hairy and somewhat hoary throughout ; 

 stem rigid, very leafy ; leaves lanceolate, acute, entire or sparingly serrate ; 

 the upper ones sessile, the lowest narrowed into a petiole ; heads large, in a 

 simple cor3Tnh. — Dry soil, Alabama, and westward. Sept. — Stem l°-2° 

 high. Leaves 1' long, fringed near the base. 



25. GRINDELIA, Willd. 



Heads many -flowered. Bays j^istillate. Scales of the hemi'^pherical invo- 

 lucre imbricated in several rows. lieceptacle flat. Achenia oval or obovate, 



