424 ORDER 70. COMPOSITE. 



24 A. turbinSllus Lindl. Smooth or slightly scabrous; branches and branchleta 

 very slender ; Ivs. lanceolate, tapering to each end, acute, slightly clasping, entire ; 

 invol. clavate-turbinate, acute at base, as long as the disk fis. (G") ; scales im- 

 bricated in many rows, linear, obtuse, with short green tips. 'Woods and river 

 bottoms, 111. (Mead.), Mo., etc., to La. Sts. 2f high, somewhat corymbous. 

 Lower Ivs. 3 to 5' by J to \V, the others gradually reduced upwards to the scales. 

 Hds. middb size, with blue rays and brownish pappus. Sept. 



25 A. dumosus L. Smooth or puberulent; branches racemous-panicled, Ivs. 

 numerous, smooth, linear, sessile, entire or the lowest subserrate, those of the 

 branches very short; invol obtuse at base, closely imbricate; scales obtuso. 

 About 2f liigh, in dry shades and borders of woods, U. S. St. much branched, 

 very leafy, the lower Ivs. 2 to 3' long, the upper smaller and becoming very minute. 

 Hds. small, with about 24 purplish-whito rays. Quito variable in respect to the 

 extent of its branching inflorescence, the acuteness and sizo of its Ivs., the obtuse- 

 ness of its scales, etc. Rt. Ivs. 1 to 3' long, st. and branch Ivs. 2 to 12''long. Sept. 



j3. CORIDIFOLIUS is a starved, attenuate form, very slender every way. 



26 A. carneus L. Smooth; st. dividing into many straight, paniculate, kafy 

 branches ; Ivs. uniform, linear-lanceolate, acuminate, entire, tho lower ones taper- 

 ing to a sessile base, the upper amplexicaul ; scales rather acute, close, much 

 shorter than the disk. Moist fields, E. and W. St. 2 3f., often purple. Lvs. 5' 

 to 5''. Hds. many, middle fize. Rays 20 30, purple to rose-colored. Sept. 

 Oct. 



26i A. mutabilis Willd. St. smooth, paniculate-branched from base, dense- 

 flowered ; Ivs. linear-lanceolate, serrulate, thickish, all clasping, upper lance- 

 oblong, entire; lids, medium; scales loose, lanceoiite, mucli shorter than the 

 diek ; rays pale. Wet soils. 111. 2 3f. Varies, with Ivs. serrate, hds. few, etc. 



27 A. ericoides L. Smoothish: branches virgate, branchlets secund, 1 -headed; 

 Ivs. spatulate, and linear, and subulate: hds. small; sc. as long as ihe disk, wilh 

 subulate, mucronate, spreading tips.- Rocky fields. Stem 1 3f. high. 



28 A. racemosus Ell. Rough-pubescent, with many erect branches; Ivs. linear 

 and linear-subulate, very acute, margins very scabrous; hds. spicate-racemed 

 and crowded on the upper part of (he branches ; scales very acute, as long as the 

 disk, somewhat spreading, rays very short. S. Car. to Fla. on the islands and 

 coast. St. 2 to 3f high. The very small heads (2'' long) aro almost rayless. 

 Sept., Oct. 



29 A. simplex Willd. Glabrous; st. cor ymbou-s-paniculate above ; Ivs. lanceolate, 

 acuminate, entire, tho margins scabrous, lower ones sarrate; scales loosely imbri- 

 cated, linear-subulate. Another variable species in low grounds, U. S. and Can. 

 St 1 to 5f high, somewhat corymbous. Lvs. 2 to 4" by 5 to 10", very smooth 

 both sides, tapering to a slender point; those of the branches and branchlets 

 proportionately smaller. Hds. rather few, middle size (4 to 5" long), on the 

 short branchlets. Sept. Sometimes low with smaller hds., again tall with larger. 



/3. DIVERGEUS. Branches diffuse, loosely racemous, pubescent in lines ; 4 6f. 

 29^ A. aubasper Lindl.? Pubescent above, racemous branched, branches 

 short, dense-flowered; Ivs. lanceolate, acuminate, attenuate to a short petiole, 

 rough, appressed-serrate, the upper reduced, entire, sessile ; invol. closely imbri- 

 cated ; rays purple. Dry, poor soils, 111., scarce-, (Mr. J. Wolf.) 2 3f. high, 

 strict. Lvs, 6' 6". Differs from Lindley's in its broader leaves. Sept. 



30 A. tenuifolius L. St. smooth, erect, paniculate-branching, with \-flowered 

 branchlets; Ivs. linear and linear-lanceolate, tapering at each end, long-acuminate, 

 entire, with roughish margins, the lower ones often serrate in the middlo ; invol. 

 scales very slender, erect, acute, slightly longer tJian the disk. Grows in moist 

 fields. E. and W. 2 6t'. Lvs. 5'!'. Rays 2030, long, pale purple. Sept. 



/3. BELLIDIFLORUS. Lvs. scabrous, subclasping ; scales rather loose. Western, 

 y. DISTICHUS. Lvs. and strict branches in 2 rows. Lvs. serrulate. 111. (Mr.J.Wolf.) 



31 A Tradescanti L. Smooth or smoothish; branches virgate, paniculate; 

 Ivs. lance-linear, the lower remotely serrate, sessile ; invol. closely imbricate ; 

 scales linear-filiform, scarcely equaling tho disk. A fino species, with numerous 



