158 ORDER 70. COMPOSITE. 



11 L. graminifolla Willd. Leaves linear, 1-veined; hds. mostly pedicellate, raa 

 rarely paniculate below ; invol. acute at base, scales obovate-spatulate, obtuse, ap- 

 pressed ; cyp. hairy. Sandy soils, N. J. and S. Variable. 



12 lit pilosa Willd. Downy and hairy, stout ; Ivs. linear and lance-linear ; hds. loosely 

 racemed, scales linear-oblong, obtuse, the inner linear. N. Car. Rare. 



13 I,, lieteroph^lla R. Br. Glabrous; Ivs. lanceolate, the upper greatly diminished ; 

 hds. spiked, scales lance-acuminate, spreading. N. Car. to Ga. Rare. 



14 Jj. gracilis Ph. Pubescent; Ivs. linear, 1-veined, the lower lanceolate ; heads on 

 slender stalks, in a long virgate rac. ; scales oblong, obtuse. Dry. Ga. Fl. 2 3f. 



1 5 lt pyelinostacliia MX. Hirsute ; Ivs. rigid, lanceolate, the upper narrow-lin- 

 ear ; spike dense, thick, of numerous cylindric heads ; scales appressed, with acute, 

 scarious, colored and spreading tips. Prairies. 111. to Tex. 3 5f. Spike 1020'. 



16 li. Cliapmanil T. & G. Tomentous ; Ivs. linear, obtusish, the upper very short; 

 hds. cylindric. 3-flowered, densely spiked ; scales acum. ; fr. hairy. Fla. 1 2f. 



17 Ij. pauciflora Ph. St. pubescent, recurved; Ivs. linear, short, the lowest lance- 

 linear ; rac. recurved, with the hds. all turned to the upper side ; hds. 4-5-flowere ; 

 scales lance-oblong, acute. Dry sand-hills, S. 1 3f. (L. secunda Ell.) 



8. KUHNIA, L. Heads 10-25-flowered, $ . Scales lanceolate, loosely 

 imbricated. Recept. naked. Cor. slender, 5-toothed. Pap. in a single series, 

 plumous. Fr. cylindrical, striate, pubescent, if With alternate, resinous- 

 dotted Ivs., and corymbed heads of pale yellow florets. September. 



K. eupatorioid.es L. St. somewhat viscid-pubescent ; Ivs. lance-ovate to lance-lin., 

 resinous-dotted, petiolate, toothed or entire. Dry soils, N. J., W. and S. 



9. BRICKELLIA, Ell. Heads many-flowered, y . Scales imbricated, 

 lanceolate or linear, striate. Receptacle naked, flat. Cor. tube slightly ex- 

 panded above, 5-toothed. Branches of the style clavate. Fr. 10-striate, 

 contracted above. Pap. setaceous, in one series. H With opposite, 3- 

 veined leaves and large heads of purple florets in coiymbs. 



B. cordifolia Ell. Pubescent ; Ivs. triangular, truncate or cordate, crenate, petiolate ; 

 hds. 30-40-flowered, scales obtuse ; pap. purple. Ga. Fla. 2 4f. August. 



10. EUPATORIUM, Tourn. BONESET. Fls. all tubular, . Invol. im- 

 bricate, oblong. Style much exserted, deeply cleft. Anth. included. Re- 

 cept. naked, flat. Pap. capillary, simple, scabrous. Cyp. 5-angled. if 

 Generally with opposite, simple Ivs. and corymbous hds. Fls. of the cy- 

 anic series that is, white, blue, red, &c., never yellow. July September. 



Leaves mostly alternate, pinnately dissected. Heads paniculate, very GO Nos. 1, 2 



Leaves mostly opposite or verticillate, c pinnately dissected. Hds. corymbed. . .No. 3 



c undivided. Heads corymbed . . (*) 



* Scales imbricated in several rows, the outer gradually shorter. . . (a) 



a Flowers bluish. Leaves opposite. Scales strongly striate No. 4 



a Flowers purplish. Lvs. whorled. Scales streaked and flesh-colored . . Nos. 57 

 a Flowert white, 5 only in each head. Lvs. subsessile. (exc. No. 18). . (&) 



b Leaves acute at base. Scales with acute white points Nos. 810 



b Leaves acute at base. Scales obtuse, short, downy Nos. 11 14 



b Leaves obtuse, roundish or truncate at the base Nos. 1513 



a Flowers white, 715 in each head. Leaves various Nos. 1922 



* Scales all of equal length, in about 1 row. Leaves petiolate Nos. 23 25 



1 E. foeiiiciilaeeiim Willd. Very branching; Ivs. all alternate, compoundly pin- 

 nate, in linear-filiform segments, the upper setaceous, simple ; heads 3-5-flowered.. 

 Fields, Pa. (rare) to Fla. 3 lOf. Flowers yellowish-white, 1 2" long. 



