212 COMPOSITE. (COMPOSITE FAMILY.) 



spatulate or obovate, rouuded at the apex, usually with broad aud colored 

 margins ; the outer oues with spreading tips. Dry light soil. Sept. Stem 

 3 -6 high. Heads sometimes 1' wide. 



9. TRILISA, Cass. 



Heads few-flowered, cymose-pauicled. Involucral scales nearly equal, in 

 three series. Corolla short. Pappus bearded. Erect perennials. Leaves 

 \eiuy, mostly serrate. Root fibrous. 



1. T. odoratissima, Cass. (HOUND'S TONGUE.) Stem herbaceous, 

 smooth ; leaves smooth and often glaucous, obtuse ; the lowest spatulute- 

 obovate, 3- 5 ribbed, the upper oval or oblong, small, sessile; heads 7-8- 

 rlowered, disposed in an ample spreading corymb or panicle. Flat pine bar- 

 rens in the lower districts. Sept. Stem 2 -3 high. The withering leaves 

 exhale the odor of vanilla. 



2. T. paniculata, Cass. Stem viscid-pubescent ; leaves smooth ; the 

 lowest spatulate-lanceolate, the upper lanceolate, sessile, small ; heads mostly 

 5-flowered, in small lateral aud terminal corymbs, forming a dense oblong 

 panicle. With the preceding. Sept. - Oct. Stem 1 - 2 high. 



10. GARBERIA, Gray. 



Heads 5-flowered. Involueral scales in 4 - 5 rows, lanceolate, acute. Co- 

 rolla slender, dilated funnel-shaped at the throat. Receptacle naked. A die 

 uia 10-ribbed. Pappus copious, scabrous. A branching shrub, with small 

 obovate entire vertical leaves, and showy heads of purple flowers in a dense 

 corymbose cyme. 



1. G. fruticosa, Gray. Dry sandy pine barrens, South Florida. 

 Stem 4 -6 high. Leaves 1' or less long. Heads 8" long. 



11. KUHNIA, L. 



Heads 10- 25-flowered. Flowers all similar and perfect. Scales of the in- 

 volucre few and loosely imbricated in 2-3 rows. Receptacle naked. Corolla 

 slender, 5-toothed. Acheuium cylindrical, many-striate. Pappus a single row 

 of strongly plumose bristles. A perennial herb, with lanceolate or linear 

 dotted leaves, and heads of yellowish white flowers in panicled corymbs. 



1. K. eupatorioides, L. Stem pubescent, or somewhat viscid, mostly 

 branched ; leaves toothed or entire, pubescent, or smoothish beneath, the lower 

 ones sometimes opposite ; corymbs loose or crowded. Light dry soil. Sept. 

 Stem 2 -4 high. 



12. BRICKELLIA, Ell. 



Heads few- or many-flowered. Scales of the involucre linear, imbricated, 

 the outer ones shorter. Keceptacle flat, naked. Corolla 5-toothed. Achenia 

 cylindrical, 10-striate. Pappus a single row of bearded bristles. Perennial 

 herbs, with dotted opposite 3-ribbed leaves, and large heads of pale purple 

 flowers, in terminal corymbs. 



