212 COMI'OSIT.T-:. («'<)MI'0SITK FAMILY.) 



Bpatiilntc or oliovato, rDuiulcil at the iipox, usually willi liroad and oolorptl 

 margins ; tin- outer oiu's with spreading ti|»8. — \)ry light soil. Sept. — Stem 

 3°-6° high. Heads soiiietiiues 1' wide. 



9. TRILISA, Cass. 



Heads few-flowered, cymo8e-i)aiiicled. Iiivolufral scales nearly equal, in 

 three .series. Corolla short. rapi>us bearded. — Erect perennials. Leaves 

 veiny, mostly serrate. Root fibrous. 



1. T. odoratissima, Cass. (Hound's Tongie.) Stem herbaceous, 

 smooth; leaves siiuh.iIi and often glaucous, obtuse ; tlic lowest spatulate- 

 obovatc, 3-5-ribbed, tlic upper oval or oblong, small, sessile; heads 7-8- 

 flowered, di.sposed in an aini>le si)reailing 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 spatulatc-laHceulate, the upper lanceolate, sessile, small ; heads mostly 

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

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



10. GARBERIA, Gray. 



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

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

 nia 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 I' 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. Achenium cylindrical, many-striate. Pappus a single row 

 of strongly plumose bristles. — A perennial herb, w ith lanceolate or linear 

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



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

 branched ; leaves tootiied 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. Receptacle 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. 



