CORYMBIFERE.f:. 181 



letvps in the nxils. Flower* in fastiginte terminal corymbs; involucre with 

 visi ^ ; ray florets, ahimt 10, vtry short. Sted villous. 



w. A. '4 Sept.— Oct. In dry i)astures very coiuiuon. 3-4 It. 



Gexi-s 29. ERIGERON. 



Involucre imbricate ; ray florets pistillate, numerous, nar- 

 row, those of the disk perlect, linear. Pappus douhle, the 

 outer series very small, the inner pilose. Rtceptacle naked. 



1. E. Nt Stem erect, pubescent and scabrous near the summit. 



}^nji,.!e \oi\ ilnto-lniiceolate, acute, irregularly totu bed, glabrous; cau- 



ir the base. Flowers in small feriiiinal corymbs; 



ale leaves, jnibescent near the base; ray florets 



nuri>eroujs -^ '^^ ^^ 'l^<-' sui'imit; disk florets numerous, green- 



ish vellow, J . ^ .'hispid. 7iYrep/uc/e tlat, doticd. 



'White. % Through ihe Summer. Common. 1-2 ft. 



^ •' ■' rxiDiFOLrcM. iS^em hirsute, very hairy. Radicle leaves obovate, 



ite : cauhne leaves sessile, scattered, oblonjj lanceolate, the lower 



• to the radicle. Flowers 3-5, terminal, central one the largest; 



:e leaves in a double series, linear-lanceolate ; rav florets hnear ; 



. tioreis yellowish. Seed compressed, nearly glabrous, luctpdule some- 



.. .,at conve-x, dotted. Kobins plantain. 



Pale blue % March— April. Common. 1-2 ft. 



3. E. " Stem pubescent, slightly f cabrous. Radicle leaves lin- 

 ear-la'i iculate; cauline ones long, linear, entire. Ftoivers ni a 



; juvulucrc with subulate leavt-s, pubescent ; ray florets 2-3 

 ~ limit. Seeds hispid ; e.xterior pappus minute scales, interior 

 wantmg, or a few pilose rays; disk florets yellow. 



White. % May — Aug. Common in sandy pastures. 2-3 ft. 



4. E. AMBiL;cTr.M. Stem erect pubescent, somewhat scabrous, f Leaves 



' ite. jF/oioera usually in pairs, a.xiilary and terminal ; 



Vciiuw. 4 July— Aug. Middle Ga. 1-2 ft. 



5. C. Philadelphtcu.m. S/em pubescen*, slightly furrowed. Radicle leaves 

 cuneate, obovate, sometimes incisely toothed ; cauhne leaves oblong-lanceo- 

 ' ' xicaule entire. Flowers in loose corymbs; ray florets capillary, 



involucre many leaved, with the leaves arranged in two series, 

 subulate. 



White, or pale purple. % Feb. — June. Common. 1-2 ft. 



6. E. QuERciFOLrrM. Sifem pubescent. I? adicle leaves lyrate, and coarse- 

 '■ • >othed; cauline ones entire. Flotcers few, terminal ; ray florets numer- 



; involucre with numerous subulate leaves. 

 Pale blue, or white. % July — Aug. Middle Car. 8-12 in. 



7. E. Ca.vadexse. Stem hispid, paniculately branched. Leaves linear- 

 iancenlafe, narrow, ciliate. Flowerx in racemose panicles ; involucre cylin- 



'-' Mrith acute linear leaves; ray florets numerous, short capillary ; disk 

 i-rleft. Seeds somewhat hairy'; pappus simple, pilose. 

 O June — Sept. Common. 1-8 ft. 



-iLLU-M. S^em^ glabrous, slender. Jl«rti"csIinear-IanceoIale, entire 

 wT: us margins. /7oirer.< in simple panicles, with divaricate branch- 



es: re with narrow, acute leaves; ray florets numerous, capillary; 



P^. 4'le- 



.. iii.u. O July — Sept. Common. 6-8 m. 



r e -I 'irka.— The two preceding species we ihink ought certainly to constitute a dii- 

 iiw, and we miehi add several varieiies .>f iluso. difTfriag froin each other io 

 r or \^m decree ; t>ui we inuat, connnl ourselves \<>t the jinsrnt, till ihe obiain- 

 io^ o( utore extexuive materiaU fbaU enable ua lu do ii mure saiisfactorily. 



PART Ii. 14 



