Order 10.— COMPOSITES. 415 



hds. on short pedicels, 7 to 1 0-flowored ; scales somewhat narrower, ciliate. 

 — Pino barrens, N. J. to Ga. (Miss Keen.) Approaches L. spicata. (L. 

 dubia Bart.) 



15 L. pilosa Willd. St. simple, pubescent ; Ids. linear, pilous-ciliate ; hds. 

 loosely racemed ; scales linear-oblong, rullier obtuse ; peduncles bracteolate. — In 

 pine barrens and sandy fields, N. J. to Car. (Pursb.) Seven-milo Mt., Va. (Read.) 

 Very rare and obscure. 



16 L. heterophylla R. Br. St. "simple, glabrous; Ivs. lanceolate, smooth and 

 glabrous ; upper linear-lanceolate, many times smaller ; hds. spicate, very short- 

 pedunculate ; invol. subsquarrous, scales lanceolate, acute, naked (not ciliate). — S. 

 Car. and Ga. (Bartram.) A doubtful species, variety of L. scariosa ? 



8. KUH'NIA, L. (To Dr. Adam Kuhn, of Pennsylvania, a pupil of 

 Linnams.) Heads 10 to 25-flowered, £ ; scales of the involucre lance- 

 olate, loosely imbricated ; receptacle naked ; corolla slender, 5-toothed ; 

 pappus in a single series, plumous ; achenia cylindrical, striate, pubes- 

 cent. — U Herb with alternate, resinous-dotted Ivs., and corymbed hds. 

 of pale yellow florets. 



EL eupatoroides L. Lvs. lanceolate and lance-ovate, varying to lance-linear, 

 usually serrate, petiolate, sprinkled with resinous dots, especially beneath; 

 oorymb few or many-flowered. — Shady soils, N. J., Penn. and Iowa (0ous?ns), to 

 Fla. and La. Sts. 2 to 3f high. Lvs. thin, 1 to 4' long, often coarsely and un- 

 evenly toothed, lower 3-veined, upper 1-veined, and very small. lids, few, ter- 

 minal. Pappus very plumous, white or tawny. Aug., Sept. 



(i. Lvs. lance-linear, mostly entire, sessile ; pan. spreading, many-flowcrcd ; fla. 

 and fr. unchanged. — With the other varieties (K. Critonia Willd.) 



9. BRICKEL'LIA, Ell. (To £>r. Brickcll, of Savannah.) Heads 

 many-flowered, £ ; scales imbricated, lanceolate or linear, striate ; re- 

 ceptacle naked, flat ; corolla tube slightly expanded above, 5-toothed ; 

 branches of the style clavato ; fr. 10-striate, contracted above ; pappus 

 setaceous, in one scries. — 2f. Herbs with tripli-veined leaves and large 

 heads of purple florets in corymbs. 



B. cordifolia Ell. Pubescent; lvs. all opposite, triangular, truncate or cordato at 

 base, cronate, petiolate; corymbs dense, lew-flowered; hds. 30 to 4.0-fiowered ; 

 scales obtuse, conspicuously striate, the inner as long as the purple pappus and 

 corollas. — W. Ga. (Pond) and Fla. A plant of fine appearance, 2 to 4f high. 

 Lvs. large, sprinkled with shining dots beneath, 3-veined, the lateral veins mar- 

 ginal just at the base. Sds. brown, longer than tho purple pappus. Aug., Sept. 



iO. EUPATORIUM, Tourn. Boneset. (To Eupator, King of Pon- 

 tus, who first used the plant in medicine.) Flowers all tubular, tt ; in- 

 volucre imbricate, oblong; style much exscrted, deeply cleft ; anthers 

 included ; receptacle naked, flat ; pappus capillary, simple, scabrous ; 

 achenia 5-angled. — 2J! Herbs, generally with opposite, simple lvs. and 

 corymbous lids. Fls. of the cyanic series, that is white, blue, red, etc., 

 never yellow. 



§ Leaves mostly alternate, pinnately dissected. Heads paniculate Kos. 1, 2 



§ Leaves mostly opposite or verticillate, — pinnately dissected No. 3 



— undivided. (*) 



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



a Flowers bluish. Leaves opposite. Scales strongly striate Xo.4 



a Flowers purplish. Lvs. whorled. Scales streaked and flesh colored No.s 5 — 7 



a Flowers white, — 5 only in each head. Leaves subsessile. (b) 



b Leaves acute at base. Scales with acute white points .Nor. 8, 9 



b Leaves acute at base. Scales obtuse, short, downy Nos. 10 — 13 



b Leaves obtuse, roundish or truncate at the base Nos. 14—16 



a Flowers white, 7 to 15In each head. Leaves various Nos. 17 — 20 



* Scales all of equal length, in about 1 row. Leaves petiolate Nos. 21 — '23 



1 E. fceniculaceum. Willd. Doa Fennel. Very branching, nearly glabrous; 



his. all alternate, the lower compoundly pinnate with linear filiform segments, tho 



