ORDER 70. COMPOSITE. 433 



16 S. verna Curtis. Hoary pubescent; st. few-leaved, branched nearly naked, 

 loosely pauicled ; lower Ivs. finely serrate, ovate, veiny, on margined petioles, the 

 upper lance-ovate or oblong, entire; scales lance-linear, smoothish ; rays 10 to 

 12, disk Us. 16 to 20; ach. pubescent. An early flowering Solida-go, in pino 

 barrens, N. Car. to Fla., rare. St. 2 to 3f high, erect or sometimes inclined and 

 the' racemes a little recurved. Lowest Ivs. 3' by 2', 5- veined, the others partly 

 3- veined. Way, Jn. 



17 S. puberula Nutt. Dusty puberulent, simple strict; Ivs. lanceolate, entire, atten- 

 uate at base, the lower oblanceolate, subserrate; pan. spicate, erect, dense but com- 

 pound; pad. pubescent; scales linear-lanceolate, acute; rays about 10. elongated; 

 disk fls. about 13. Woods, Me. to Ga. St. straight, purplish, 2 to 3f high, ter- 

 minating in a long, thyrsoid spike of dense, appressed racemes. Lvs. very 

 minutely pubescent both sides, the lowest on close, winged stalks. Hds. rather 

 large, bright yellow. Aug. Oct. (Also S. pulverulenta Nutt.) 



18 S. sempervirens L. St. smooth; Ivs. lanceolate, somewhat succulent, 

 smooth, entire, and scabrous on the margin, subamplexicaul, obscurely 3-veined ; 

 rac. secund, paniculate; pedicels scabrous-pubescent; rays elongated 8 to 10, disk- 

 fls. 15 to 20. Marshes along the coast, and river banks, within the influence of 

 the brackish water. St. 3 to 6f high, purplish, somewhat glaucous, with nu- 

 merous long and narrow leaves. lids, large. Eays showy. Sept. (3. lasvi- 

 gata Ait.) 



19 S. angustifolia Ell. St. smooth, strict, branched or simple : Ivs. lance-linear. 

 thick, smooth, entire, sessile, short and erect, l-veined, the lower lanceolate, taper- 

 ing at base; pan. dense, erect, virgate; pedicels glabrous, slender; hds. small, 15 

 to 20-flowered ; rays about 7. Brackish swamps, S. Car. to Fla. and Tex. Sts. 

 2 to 4f high. Lvs. diminishing upwards, the highest subulate. Hds. very nu- 

 merous, partly inclined to one side. Scales acute. Sept., Oct. 



20 S. nemdralis Ait. Dusty-subtomentous ; Ivs. roughish, acute, obscurely 3- 

 veined, attenuate at base, sub-entire the lower petiolate ; rac. secund, paniculate ; 

 hds. small ; rays 5 to 6, disk-fls. 5 to 7. Dry fields and roadsides, Can. and U. 

 S. A common, starved-looking species, with a grayish, dusty aspect. Height 1 

 to 2f. Lvs. often fascicled in the axils. Hds. with conspicuous rays. Pan. 

 dense, composed of many short racemes, inclining to one side, or often of a 

 single, terminal recurved one. Again, the stem divides into branches, each bear- 

 ing a panicle. Sept. 



/?. Very slender, minutely puberulent, terminated by a slender spicato (re- 

 curved) panicle. In woods. Lvs. as long as in S. cassia. 



21 S. rupestris Raf. Smooth, slender ; Ivs. linear-lanceolate, -attenuate at both 

 ends, plainly 3-veined, entire, or the lower subserrulate ; hds. small, about 15- 

 flowered, in a simple, sknder panicle ; rays very short. Ind., Ky., on river banks. 

 St. 2 to 3f high, often branched. Lvs. 2 to 3' long, veins whitish beneath. Aug., 

 Sept. Too near the next. 



22 S. Missouriensis Nutt. Glabrous, low, simple, slender ; Ivs. lance-linear, 

 tapering to each end, plainly 3-veined, very acute and rough-edged, lower ones 

 with acute, slender serratures, radical, oblanceolato, petiolate ; rac. small, in a 

 denss, pyramidal, or somewhat corymbous pan. ; ped. glabrous', scales with greenish 

 tips; hds. small, 12 to 15-flowered. A delicate species, 1 to 2f high, in dry 

 prairies, 111. and Mo. Lvs.. smooth and shining, lower 3 to 4' by 3 to 5", the 

 others gradually reduced upwards to minute bracts. Kays about 8. Jl., Aug. 



23 S. serotina TV'illd. St. round, striate, smooth ; Ivs. linear-lanceolate, acumi- 

 nate, slightly serrate, obscurely 3-veined, veins beneath pubescent ; rac. secund, re- 

 curved, paniculate; ped. pubescent; hds. small, 15 to 2Q-flowered. A smooth 

 species in meadows and thickets, U. S. and Can. St. 3 to 6f high, very smooth, 

 often glaucous or purple. Lvs. 3 to 5 to 7' long, smooth; margin scabrous, 

 upper entire. Fls. numerous, forming a more or less compact panicle, inclined at 

 summit. Rays less than I" long. Sept. Variable and scarcely distinct from 

 the next. 



24 S. gigantea Ait. St. smooth, striate; Ivs. lanceolate, serrate with sharp, 

 spreading teeth, margins rough-ciliate, strongly 3-veined ; rac. axillary and loosely 

 panicled; branches pubescent ; ped. and pedicels hairy; hds. 15 to 20 flowered., 



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