ORDER LXYDTI. COMPOSITES. 389 



2. H. angustifo'lius, (L.) Stem pubescent, slender, sparingly branched. 

 Leaves narrow-lanceolate, with revolute margins, scabrous on the upper 

 surface, pubescent beneath, lower ones opposite, upper ones alternate. 

 Flower* terminal ; ray florets about 12 ; pappus setaceous, ciliate. — Yel- 

 low. U- Aug.— Oct. N. Jer.— Flor. 2— 3 feet. 



3. II. rad'uxa, (T. & G.) Stem erect, simple, hirsute, bearing a single 

 head. Leaves opposite, obovate, or spatulate, entire, hispid, sessile, or 

 nearly so. Scales of the involucre lanceolate, purple ; pappus 1 — 2 

 awns. Aehenia compressed ; rays 7 — 10. — ©. Geo., Ala., and Flor. 

 Aug.— Sept. 1—3 feet. 



4. H. heterophye'eus, (Xutt.) Stem slender, simple, hispid below. 

 Leaves hispid, lower ones oval or elliptical, upper lanceolate or linear ; 

 all nearly sessile. Heads large; rays 14 — 18. — £>. X. Car. and Flor. 

 Dry soil." 1—2 feet, 



5. H. atroru'bens, (L.) Stem hispid, naked toward the summit, pa- 

 niculately branched. Leaves opposite, spatulate, acute, crenate, sca- 

 brous on the upper surface, pubescent beneath, those toward the base 

 very long, upper ones small, sessile. Flowers in terminal panicles ; in- 

 volucre many-leaved, ciliate; ray florets lanceolate, nerved. Seed com- 

 pressed : pappus 2 long deciduous awns ; receptacle convex, with the 

 chaff 3-cleft at the summit. — Yellow. 2f. Sept. — Oct. Dry soils. 

 Common. 3 — 4 feet. 



6. H. scaber 'rimes, (Ell.) Stem scabrous, slightly branched. Leaves 

 opposite, lanceolate, scabrous, nearly entire, whitish. Flowers few ; in- 

 volucre with ciliate leaves ; ray florets from 16 — 26 ; pappus subulate. 

 — Yellow. Sept. — Oct. Western Geo. 



7. H. tricus'pis, (Ell.) Stem scabrous. Leaves opposite, ovate- 

 lanceolate, scabrous, whitish on the upper surface, brownish beneath, 

 with revolute margins. Flowers terminal ; involucre with subulate 

 leaves; ray florets 14 — 16; pappus subulate. — Yellow. 2£. Sept. — 

 Oct. Western Georgia. 3 — 4 feet. 



8. II. mol'lis. (Willd.) Stem glabrous toward the base, scabrous at 

 the summit, purple. Leaves ovate-lanceolate, acute, serrate, pubescent 

 beneath, lower ones opposite, the upper alternate. Flowers in a termi- 

 nal panicle; involucre with numerous, pubescent, ciliate leaves; ray 

 florets about 10, hairy ; pappus acuminate, pubescent. — Yellow. If. 

 July — Aug. Common. 3 — 6 feet. 



9. EL gigan'teus, (L.) Stem somewhat scabrous toward the summit, 

 branching. Lease* alternate, lanceolate, serrate, scabrous, tapering at 

 each end, on -hort petioles, ciliate at the base. Flowers in terminal 

 panicles; involucre many-leaved, fringed ; ray florets 12 — 14; pappus 

 subulate. — Yellow. If. Aug. — Oct. Mountains, 5 — 8 feet. 



10. II. tomekto'bus, (Ell.) Stem pubescent, scabrous, branched. 

 long, ovate-lanceolate, tapering toward the summit, serrulate, 



scabrous on the upper surface, tomentose beneath, upper leaves alter- 

 nate. Flower* terminal; involucre with long, ciliate leaves, summits 

 • ray florets 10 — 14; pappus subulate; chaff 3-cleft, hairy to- 

 ward the Bummit — Yellow. 2f . Aug. — Oct. Western Geo. 4 — 6 ft. 



11. II. bpathcla'tus, (Ell.) Stem striate, scabrous toward the summit, 

 sparingly branched. Leaves opposite, ovate, spatulate, tapering toward 

 the summit, on short petioles, pubescent beneath. Flower* at the ex- 

 tremities of the branches ; involucre with subulate leaves ; ray florets 



