174 DlCOTYLEDOiSOUS. 



tinged with purple ; ray florets 3-toothecl generally 20. Seed angled, oblong. 

 Pale purple. %. September — October. On the Sea coast. 2--3 feet. 



6. A. Paludosds. S^e?rt pubescent near the summit. Zeaves sessile subu- 

 late, acute, glabrous beneath, scabrous on the upper surface and margins, 

 sometimes ciliate. Flowers solitary, large on naked peduncles ; involucre 

 squarrose, the lower scales leaf-like, reflexed, ray florets long, numerous. — 

 Seeds glabrous, angled. 



Purple. %. October — November. Pine barrens, common. 



7. A. Grand;florus. Stem pubescent towards the summit. Leaves ?^ca- 

 brous, Imear sessile, rigid, reflexed, with the margin ciliate. Flowers solitary 

 at the extremities of the branches ; scales of the involucre linear-lanceolate, 

 reflected ; ray florets nunierous, large. Seeds scarcely pubescent. 



Purple. October- — INovember. Sandy woods, common. 2-3 feet. 



8. A. ExiLis. Stem erect, slender, with coiymbo.-e branches. Leaves 

 long, linear, slightly scabrous, diminishing in size towards the summit. Flow- 

 ers on the upper branches in racemes, involucre, with glabrous, linear-lan- 

 ceolate s-iales ; ray florets numerous, narrow. 



Purple. ^. September-— October. Damp soils. 4-5 feet. 



9. A. SuBULATUS. Ste}n erect, glabrous, much branched. Leaves long, 

 linear, subulate, appressed. i^Zoujers rumerous, on terminal peduncles; in- 

 volucre cylindrical, with the summit of the scales slightly reflexed ; ray florets 

 numerous, 3-cleft, short. 



Purple. %. September— -October. Sea coast. 2-3 feet. 



10. A. FoLiOLOSUS. S^em erect, branching, glabrous. Z,eai;es sessile, linear- 

 lanceolate, appressed, with scabrous margins, those of the branches minute, 

 and numerous. Flowers in compound panicles ; involucre with acute ap- 

 pressed scales, hairy, or ciliate at the summit; ray florets numerous, linear- 

 lanceolate. SeecZ glabrous. 



Purple. %. September— -October In dry soils, common. 2- 3 feet. 



11. A. Sparsiflorus. Stem slender, erect, with expanding branches, gla- 

 brous. Leaves hnear, reflexed, entire. Flowers solitary at the extremity of 

 the branches ; involucre, with acute, appressed scales. 



Purple. %. August— -September. Low country. 2-3 feet. 



12. A. Tenuifolius. S^emerect,glabrousnear the base, branching. Leaves 

 numerous, linear-lanceolate, tapering at each end, slightly scabrous along the 

 margins, upper ones minute. Flowers in racemes on short peduncles ; invo- 

 lucre with appressed linear acute scales ; ray florets numerous, narrow.-— 

 Seed oblong. 



Purple. %. Oct.— -Nov. Mid. Upper dist. Carolina, Georgia. 



13. A. DuMosus. Ste7n erect, glabrous, much less branched than the pre- 

 ceding species. Leaves linear-lanceolate, entire, with the margins slightly 

 scabrous. Flowers solitary, terminal at the summit of the paniculate branch- 

 es ; involucre, with acute glabrous hnear-lanceolate scales ; ray florets nu- 

 merous, narrow. Steds scarcely pubescent. 



Purple. %. September— October. In damp rich soils. 1-2 feet. 



14. A. Ericoides. iS^em erect, slender, with numerous expanding branch- 

 es. Leaves of the stem linear, glabrous, acute at each end, those of the 

 branches subulate, numerous, very small. Flowers in racemes, ori short pe- 

 duncles ; involucre with lanceolate scales; ray florets numerous, linear. 



Purple. 11- Oct.— Nov. Barren soils. Common. 2-3 ft. 



15. A. Racemosus. >Sfem diffuse, with slender, slightly pubescent branch- 

 es- Leaves linear-lanceolate, with the margins scabrous, pubescent beneath, 

 those of the branches very small. Flowers in simple racemes at the summit 

 of the branches; involucre with hnear lanceolate scales; ray florets, numer- 

 ous, linear. 



Purple. %. Sept.— Oct. On the coast. 1-2 ft. 



16. A. MuLTiFLORus. Stem diff'usely branched, almost hispid. Leaves 

 linear, acute, pubescent, and fringed along the margin. Flowers in terminal 

 racemes, somewhat secund ; involucre with ciUate, obovate scales, squarrose. 



