158 ORDER 70. COMPOSITE. 



11 Li. gramiiillolia Willd. Leaves linear, 1-veined ; hds. mostly pedicellate, rac. 

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

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



12 Li. pllosa Willd. Downy and hairy, stout ; Ivs. linear and lance-linear ; hds. loosely 

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



13 Li. heterophylla R. Br. Glabrous; Ivs. lanceolate, the upper greatly diminished; 

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



14 Li. gracllls 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. 



15 Li. pyclmostaclila MX. Hirsute; Ivs. rigid, lanceolate, the upper narrow-lin- 

 ear; spike dense, thick, of numerous cyliiidric heads ; scales appressed. with acu.:e, 

 scarious, colored and spreading tips. Prairies. 111. to Tex. 3 5f. Spike 10 2<y. 



16 Li. Cliapma.nl! T. & G. Tomentous ; Ivs. linear, obtusish. the upper very short ; 

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



17 Li. 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-rtowered ; 

 scales lance-oblong, acute. Dry sand-hills, 8. 1 3f. (L. secunda Ell.) 



8. KUHNIA, L. Heads 10-25-flowered, 5 . Scales lanceolate, loosely 

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

 plurnous. Fr. cylindrical, striate, pubescent. 1C With alternate, resinous- 

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



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

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



9. BRICKELLIA, Ell. Heads many-flowered, 5 . 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. 1C With opposite, 3- 

 veined leaves and large heads of purple florets in corymbs. 



B. cordlfolla 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. BONESKT. Fls. all tubular, 5 . 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 OO 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. 5- -1 

 a Flowei* white, 5 only in each head. Lvs. subsessile. (exc. No. 18;.. (V) 



b Leaves acute at base. Scales with acute white points Nos. S 10 



b Leaves acute at base. Scales obtuse, short, dcwny Nos. 1114 



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



a Flowers white, 7 15 in each head. Leaves various Nos. 19 28 



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



1 K. fociiifiiluceum Willd. Very branching; Ivs. all alternate, compoundly pin- 

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

 Fields. Pa. (rare) to Fla. 31 Of. Flowers yellowish- white, 12" long. 



