ORDER 70. COMPOSITE. 415 



hds. on short pedicels, 7 to 10-flowered ; scales somewhat narrower, ciliate. 

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

 dubia Bart.) 



15 L. pilosa Willd. St. simple, pubescent; Ivs. 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, 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 

 Linnaeus.) 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. 



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

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

 corymb few or many-flowered. Shady soils, N. 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-veined, upper 1 -veined, and very smalL Hds. few, ter- 

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



j3. Lvs. lance- linear, mostly entire, sessile ; pan. spreading, many-flowered ; fls. 

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



9. BRICKEL'LIA, Ell. (To Dr. BrickeU, of Savannah.) Heads 

 many-flowered, i 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. 2 Herbs with tripli-veined leaves and large 

 heads of purple florets in corymbs. 



B. cordifolia Ell. Pubescent; Ivs. all 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-veined, the lateral veins mar- 

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



10. EUPATCTRIUM, Tourn. BONESET. (To Eupator, King of Pon- 

 tus, who first used the plant in medicine.) Flowers all tubular, ; 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 Ivs. and 

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

 never yellow. 



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



Leaves mostly opposite or verticillate, pinnately dissected No. 8 



undivided. (*) 



* 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 7 



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



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



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



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



a Flowers white, 1 to 15 in each head. Leaves various Nos. 17 2( 



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



1 B. foeniculaceum Willd. DOG FENNEL. Very branching, nearly glabrous; 



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



