434 Order 70. —COMPOSITE. 



A large, showy species, in low, open grounds, TJ. S. and Can. St. greon, some- 

 times purplish, 4 to 7f high, often much branched above. Lvs. 2 to 4 to 7' long, 

 acuminate at each end, otten with divergent teeth. Pan. ofcen diffuse, on spread- 

 ing, loafy branches. Aug. — Oct. — Rays twice longer thau the last. 



25 S. Canadensis L. St. downy; lvs. lanceolate, serrate, 3-veined, acuminate, 

 rough ; rac. paniculate, secund, recurved ; rays short, about 8, disk-Ms. about 7 ; 

 scaies liuear. — (Fig. 118.) Fields, hedges, U. S. and Brit. Am,, common. From 13' to 

 6f high. Stern farrowod, terminated by a copious panicle which inclines to ono 

 side. Lvs. sessile, 3' long, sometimes nearly entire, and perhaps a little downy, 

 llcads almost innumerable, very small, with very obscure, yellow rays. Aug. — Oct. 



p. PRoCERA. St. villous; lvs. rough, villous beneath; hds. larger, and with 

 larger rays. — In low grounds, 4 — 7f high. Leaves distinctly 3-veined. (S. 

 procera Ait.) 



26 S. Shortii Torr. <?; Gr. St. minutely rough-downy ; lvs. oblong-lauceolato, 

 sharply serrate, strongly 3-veined, acute, very smooth; rac. secund, dense; pan. 

 contracted, elongat:d; scales linear-oblong, with greenish tips; rays 5 to 7, disk-fla 

 5 to 7. — Banks of the Ohio River, lad, and Ivy. Sts. 1 to 2f high. Readily dis- 

 tinguished from tho last. JL, Aug. 



27 S. pilosa Walt. Hirsute, tall, sloul; lvs. lance-oblong, remotely serrulate, 

 rough, thick, obsoletely veined, midvein hairy beneath, upper lance-ovate, sessile, 

 entire; pan. pyramidal; rays 7 to 10, minute, disk-fR 5 or G. — Pino barrens, N. 

 J. to Fla., in damp places. St. 4 to 7f high. Lvs. 2 to 4' long below, reduced 

 upwards, very numerous, yellowish-green. Pedicels with subulate bracts, simi- 

 lar to tho outer scales. Sept., Oct. 



28 S. odora Ait. St. round, pubescent in lines, dender; lvs. linear lanceolate, acute, 

 abrupt and se ; silo at base, very entire, smooth, punctate, with pellucid dots, rough- 

 edged ; rac. paniculate ; rays 2 to 4, disk-ils. 3 or 4. — In dry, fertile woo ilanda 

 and sunny hills, U. S. and Can. Stem 2 — 3f high, yellowish-green. Leaves 

 1^ — 3' by 3 — 5", with a strong, j-cllowish midvein, but no veinlets. Panicle in- 



■ cb'ned. Racemes 2 — 3' long, spreading, each generally with a leaf at base, and 

 a simple row of small heads on tho upper side. Jl. — Sept. — The only species of 

 SoliJago which has properties generally considered cither agreeable or useful. 

 Tho leaves are aromatic and yield by distillation a fragrant volatilo oil. 



(3. RETRORSA. Lvs. linear below, subulate above, often twisted; rays 1, 2 or 

 3 ; st. pubescent all over. S. W. Ga. (Mis3 Keen). Punctate lvs. acute. 

 Scale-, &c, as in a. (S. retrcrsa Mx.) 



29 G. tortifolia Ell. St. rough, pubescent; lvs. numerous, linear, subentiro, 

 often twisted at the base, small, scabrous above, not punctate; rac. recurved, in a 

 pyramidal panicle; scales obtuse; ray and disk-lis. each 3 to 5. — N. Car. to Fla. 

 and Tex., in dry fields. St. 2 to 3f high, often much branched. Lower lvs. 2 to 

 3' long, reduced upwards to subulate brads. (Elliott.) Aug. — Oct. — Is this the 

 Earns as our (1. No. 28 ? 



30 S. altissima L. St. hairy, tall ; lvs. lanceolate, very vein}-, lower ones deeply 

 serrate, rough and wrinkled. Scales acute ; rays G to 8. — A variable species, the 

 tall, rough varieties of which are common about tho borders of fields, in hedges, 

 U. S. and Brit. Am. Stem rough with hairs, erect, 3 — 5f high, much branched 

 at top. Leaves variously toothed or serrate, numerous both upon tho stem and 

 branches. Branches widely spreading, each terminating in a recurved paniclo 

 with the flowers turning upwards. Scarcely two of tho plants look alike. Tho 

 branches arc very wideiy spread, or but littlo diverging, with few and scattered 

 head-, or with numerous heads ; tho leaves aro equally or unequally serrate, 

 hairy or woolly. Aug. — Oct. (S. rugosa Willd.) 



31 S. Drammondii Torr. & Gr. St velvety ; lvs. cvate or broadly oval, acuta at 

 each end, sharply serrate, smooth abeve, velvety beneath, veiny ; scales oblo.ig, eb- 

 tusc ; rays 4 or 5. — 111. near St. Louis. (Drummoud in N. Am. Fl.) St. 1 to 2f 

 high. 



32 S. Radula Nutfc St. rough-downy, simple ; lvs. oblong -spatulals, tapering to 

 tho sessile base, serrate above, very rough, iigid, tho lowest petiolato; pan. con- 

 tracted; disk-fls. 3 to 6, rays 5, very short — 111. near St. Louis (h'ngelman), to 

 La. Plant slender. 1 to 2f high. lids, small, crowded, in short, secund racemes. 

 Sept. 



