228 COMIMISIT.K. (COMIMISITK I'AMIKY.) 



§ 2. Vii»iAiitKA. — Sraivs of the irtvolmrr uppressed : mi/s iiioslli/ fewer than 



tlif (lis/, iliiiii IS, riiri-li/ Wduliiiij : nirrmrs rucemose, rori/mhus)', or panicled. 



* Ji<iciiiii'S not l-siili:il : Ivtires ftuthtr-feined. 



■*- liuccmcs (uilluri/, c/usti'i-likr, iixiial/i/ shorter thtin the leaves: the uppermost 



ojteii croa-ded and nirimose : leaves uniform, serrate. 



3. S. pubeus, .M. A. Curtis. Stem siiiijile, slender, puliescent ; leaves 

 thill, ovallauiidliiU', arimiiuate at each cud, coarsely serrate, pubescent; ra- 

 cemes dense, tiie upper ones racemose; heads 8- l4-flo\vered • ravs 4-7- 

 scales of the involucre obtuse, vill(»us pubescent ; achenia hoary. — Ujjper and 

 mountainous parts of Georgia and ^.'orth Carolina. Augu.st. — Stem 2^-3° 

 iiigli. Leaves 3'- .'>' long. 



4. S. Buckleyi, 'IV.rr. & Gray. Aillun,-; luiliesient ; leaves oblong, acute 

 at each end, coarsely serrate, .smoother al)ove ; racemes loose, all separate and 

 mucii shorter than the leaves; lieads 1 5 - 20 flowered ; rays 4-6; scales of 

 the involucre rather acute, nearly siii(ii;tli ; achenia short and smooth. — Inte- 

 rior of Alal)ama to North Canjlinu. Oct. — Stem 2° high. Leaves 3' long. 



5. S. latifolia, L. Stem smooth, .«ini])le; leaves oval or ovate, acumi- 

 nate, une(|ually toothed-.<!errate, mostly pubescent beneath; racemes roundish 

 or oblong, commonly shorter than the leaves, the upper more or le.^s racemose ; 

 heads about 10-flo\vered ; rays 3 - 4 ; scales of the involucre smoothish, ol)tuse ; 

 achenia silky -pubescent. — Shady woods in the uj)per districts. Se])t. — Stem 

 l°-2° high. Leaves 3' -5' long, 2' -3' wide. 



6. S. CSesia, L. Stem slender, often branching, smooth and glaucous ; 

 leaves smootli, lanceolate, acuminate, sessile, sharply serrate; racemes all dis- 

 tinct, roundish, much shorter than the leaves ; the lowest rarely elongated ; 

 heads about 10-flowered; rays 3-4, large, bright yellow; scales of the invo- 

 lucre smooth, obtuse ; achenia pubescent. — Damp shady woods and banks. 

 Sept. — Stem 2°-3° high, often purple. Loaves 3' -5' long, i'-V wide. 

 Bacemes in all the upper axils. 



7. S. Curtisii, Torr. & Gray. Smoothish; stem tall, not glaucous, 

 straight and mostly simple, striate-angled ; leaves lanceolate or obovate-lanceo- 

 late, acuminate at each end, sharply serrate above the middle, sessile ; racemes 

 dense, much shorter than the leaves; heads8- 12-flowered ; rays 4-6; scales 

 of the involucre oblong-linear, obtuse ; achenia hoary-pubescent. — Mountains 

 of North Carolina and Tennessee. Sept. — Stem 2° -3° high. Leaves 5' -6' 

 long. 



8. S. monticola, Torr. & Gray. Smoothish ; stem terete, simple and 

 slender, puberulent above; leaves very thin, oblong-lanceolate, acuminate, 

 slightly serrate; the upper ones small and bract-like; racemes sessile, the 

 uppermost approximate and nearly as long as the leaves; heads about 15- 

 flowered ; scales of the involucre linear, acute ; achenia smooth. — Mountains 

 of North Carolina. Sept. — Leaves and flowers smaller than the last. 



9. S. lancifolia, Torr. & Gray. Smooth; stem tall, simple, angled; 

 leaves long-lanceolate, acuminate, finely serrate, sessile ; racemes apjiroxi- 

 mate, peduncled, somewhat compound ; the upper ones longer than the re- 

 duced leaves; heads nearly sessile; scales of the involucre oblong, very 



