Order TO.— COMPOSITiE. 41 5 



hds. on short pedicels, 1 to lO-flowered ; scales somewhat narrower, oiliate. 

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

 dubia Bart.) 



15 Ii. pildsa Willd. St. simple, pubescent ; hs. linear, pilous-ciliate ; hds. 

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

 pine barrens and sandy fields, N. J. to Car. (Pursh.) Seven-mile Mt., Ta. (Read.) 



■ Very rare and obscure. 



16 L. heteroph^lla 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. soariosa ? 



8. KUH'NIA, L. {To Br. Adam Kuhn, of Pennsylvania, a pupil of 

 Linnaeus.) Heads 10 to 25-flowered, ^ ; scales of the involucre lance- 

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

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

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

 of pale yellow florets. 



K. eupatoroides L. Lva. lanceolate and lance-ovate, varying to lance-linear, 

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

 corymb few or many-flowered. — Shady soUs, K J., Penn. and Iowa (Cousens), to 

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

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

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



/3. liVS. lance-linear, mostly entire, sessile ; pan. spreading, many-flowered ; fis. 

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



9. BRICKEL'LIA, Ell. {To Br. Brickell, 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 clavate ; fr. 10-striate, contracted above ; pappus 

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

 heads of purple florets in corymbs. 



B. cordifolia Ell. Pubescent; lvs. a^ opposite, triangular, truncate or cordate at 

 base, crenate, petiolate; corymbs dense, few-flowered; hds. 30 to 40-flowered; 

 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-veinecl, the lateral veins mar- 

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



iO. EUPATO'RIUM, Tourn. Boneset. (yo .^apator, Kingof Pon- 

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

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

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

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

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

 never yellow. 



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



I Leaves mostly opposite oi- verticiliate, — pinnately dissected No. 8 



— undivided. (*) 



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



a Flowers bluish. Leaves opposite. Scales strongly sti-iate No. 4 



a Flowers purplish. Lvs. whorled. Scales streaked and flesh colored N05.5— T 



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



b Leaves acute at'base. Scales -with acute white points Nos. 8, 9 



b Leaves acute at base. Scales obtuse, short, downy N05. 10—18 



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



a Flowers white, 7 to 1.5 In each head. Leaves various Nos. IT— 20 



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



1 B. foeniouldoeum WiUd. Doa Fennel. Veiy branching, Tieaarly glabrous; 

 Vas. all alternate, the lower oompoundly pinnate with linear filiform segments, the 



