244 coMPOsiTi'E. (composite family.) 



25. S. Drummdndii, Torr. vt Gr. Stem (1°-.'J° hiuli) and lower surface 

 of the hriMullij onite or ornl somewhat tn/ile-ribbed leaves mimilelj/ relreti/-/>ub( scent, 

 soino of the leaves almost entire; nueiiies panicled, short; scales of the in- 

 volucre ohiong, obtuse; rays 4 or 5. — Hocks, Illinois opposite St. Louis, and 

 southwestward. 



^- -I- H- -t- Leaves entire or nenr/i/ so, thirkish, reticttlate-vn'ni/, lint the veins obscure. 



26. S. pilbsa, Walt. Stem stunt, uiiriyhl {:i° -7° h\ij;\\), clothed with spread- 

 ing hairs, often panicled at the summit ; leaves oblong-lunceolate, rouyhish, hairy 

 lieneuth, at least on the midrib, serrulate, the upper ovate-lanceolate or oblong 

 and entire, closely sessile ; racemes many, recurved, crowded in a dense pyram- 

 idal panicle ; rays 7-10, very short. — Low grounds, pine barrens of jS'ew Jer- 

 sey to \'ir;jinia, and southward. 



•r,. S. odbra, Ait. (Swket Goldkn-hod.) .S'moo^/i or nearly so through- 

 out; stem slender (2° -3° high), often reclined; leaves linear-lauccolate, entire, shin- 

 ing, jiellucid-ilotted ; racemes spreading in a small one-sided panicle; rays 3-4, 

 rather larire. —Border of thickets in dry or sandy soil, Vermont and Maine to 

 Kentucky and southward. — The crushed leaves yield a pleasant anisate odor. 

 Bnt an occasional form, var. ixodOua, is nearly scentless. 



-t- -1- f- -I- H- Leaves more or less rjrayish or hoary, thicklsh, feather-veined and 

 sliiihthj triple-ne.rvid, obscurehf serrate or entire; heads middle-sized. 



28. S. nemoralis. Ait. Ciothed with a minute and close grayish-hoary (soft 

 or roughish) puhesrence; stem simple or corymbed at the summit (^°-2j° 

 high) ; leaves oblanceolate or spatulate-oblong, the lower somewhat crenate- 

 toothcd and tapering into a petiole; racemes nnmerous, dense, at length re- 

 curved, forming a large and crowded compound raceme or panicle which is 

 usually turned to one side; scales of the involucre linear-oblong, oppressed ; 

 rays 6 -9. — Dry sterile fields: very common. — Flowers very bright }'ellow, 

 beginning early in Aug. 



29. S. radula, Nutt. Stem and oblong or obovatc-spatulate leaves rigid 

 and very rough, not hoary, the upper sessile ; scales of the involucre oblong, 

 rigid ; rays 3 - 6 : otherwise nearly as in S. nemoralis, of which it is most 

 probably a greener and rough variety. — Dry Hills, Western Illinois and south- 

 westward. 



***** Heads in one-sided spreading or recurved racemes, forming an ample 



panicle ; leaves plainly 3-ribbed, or triple-ribbed. 



-t- Scales of the involucre thickish and rigid, closely imbricated, and with somewhat 



greenish tips or midrib : leaves rigid, smooth and shining. 



30. S. Shoi'tii, Torr. & Gr. Stem slender, simple (l°-30 high), mi- 

 nutely rougliisii-]iubesc-cnt ; leaves oUong-lancolate, acute, the lower sharply 

 serrate above the middle with scattered fine teeth ; racemes mostly short in a 

 crowded panicle; achenia .silky-pubescent. — Rocks at the Falls of the Ohio, &c. 

 — A handsome species : heads 3" long, narrow. 



31. S. Missouri6nsis, Nurt. Smooth throughout (1°- 3° high) ; leares 

 lincar-lanc(olale, or the lower broadly lanceolate, tapering to both ends, with 

 very rough margins, the lower very sharply serrate ; heads and dense crowded 

 racemes nearly as in No. 20 ; arJunla nearly glabrous. — Dry prairies, from Wis- 

 consin and Illinois southward and westward. — Heads l-^"-2" long. 



