Tacetes. LXXV. COMPOSlT.i::. S^ I 



13. H. DivARiCATUs. Spreading Sunfloicer. 



St. smooth, branching or simple ; /to. nearly opposite, sessile, ovate-lanceo- 

 late, 3-veined, scabrous above, smooth beneath ; pamcle trichotomous, slendei , 

 few-flowered. — Not uncommon in rocky wood.s, brooksides, U. S. and Bri.. A.vv 

 Stem 51' high, glaucous. Leaves rather abrupt at base, tapering t& ; ioiXi, 

 acute point, with obtuse serratures. Flowers large, although small lor te tr^r . 

 nus, few, yellow and very showy. The panicle is either 2 or 3-1'orkea. VtJs- 

 plant is much improved by cultivation. Aug. Sept. 



li. scaberr'umts. (S'. subsimple ; Zw. thick, exceedingly rough and rigid,. tP'<u 

 rens, la. ! 



y. Lvs. ternately verticillate. Otherwise as in /?. Barrens, la. ! 



§ § Disk yellow. * * Leaves alternate. ' 



14. H. GiG.\NTEUs. (H. altissimus. Linn.) 



Lvs. alternate (the lowest opposite), lanceolate, acuminate, serrate, sea 

 brous, obscurely 3-veined, tapering at base into short, ciliate, winged petioles ■ 

 scales of the involucre lanceolate-linear, ciliate ; pappus of 2 short, slightly fringed 

 scales. — Can. to Car. and Ky., in low grounds and thickets. Stem 4 — 8f high, 

 purplish, branching above into a corymbose panicle of large, yellow flowers. 

 Leaves 2 — 5' by J — 1', opposite or alternate in various degrees. Rays 12 — 20, 

 Variable. 



" 0. anibi^uus. T. & G. Lvs. nearly all opposite, sessile and rounded at base. 

 — L. I." . Turr. <f- Gray. 



15. H. TOMENTosus. Michx. Downy-leaved Sunjlou-cr. 



St. stout, pubescent, branched above ; lvs. thin, large, acitminate, obscure- 

 ly serrate, scabrous above, tomentose or nearly glabrous beneath, lower onea 

 ovate, petiolate, upper ovate-lanceolate, subsessile ; hds. long-pedurjculate ; 

 scales lance-linear, long-acuminate, villous, squarrose ; cA^^^S-toothed, hirsute 

 at summit. — Dry soil, 111. to Ga. A large species, 4 — Sf high, with ample 

 leaves and flowers. Leaves 6 — 12' by 2 — 6', some of them tripli-veined. Rays 

 elliptical lanceolate, 18 ' by 5'. Aug. — Oct. -f 



16. H. GR0ssE-SERR.iTUs. Martcus. Notch-leaved, Sunflower. 



St. smooth and glaucous; lvs. mostly alternate, lanceolate or lance-ovate, 

 long-acuminate, sharply serrate, scabrous above, hoary and softly pubescent be- 

 neath, abruptly contracted into naked petioles; scales lance-subulate, loosely 

 imbricated, sparingly ciliate, as long as the disk. — Ohio, Siillivanf, &c., la. 

 Pliunmcr, l\\., Mead, toL.ti. Allied to H. giganteus. Stem 4 — 6f high. Leaves 

 6 — 9' by 1 — 2' broadest near the base, lower ones rather coarsely serrate. Rays 

 15—20, expanding near 3'. Aug. Sept. 



17. H. TUBERosus. Jernsalem Artichoke. — Lvs. 3-veined, rough, lower ones 

 opposite, cordate-ovate, upper ovate, acuminate, alternate ; petioles ciliate at 

 base. — "11- Native of Brazil. The plant has beCii cultivated tor the sake of its 

 tuberoits roots, which are used as a substitute for potatoes. It is naturalized in 

 borders of fields, hedges, &c. Sept. \) + 



35. TAGETES. 



Named for Tages.a Tuscan divinity, son of Genius ;uid g-randson of Jupiter. 



Heads heterogamous ; involucre sliiiplc. tubular, of 5 united 

 scales ; ray-flowers 5, persistent ; receptacle naked ; pappus of 5 

 erect awns. — ® Herbs oftrapical America. Lvs. pinnalely divided. 



1. T. PATULA. French Marigold. — S/. erect, with .spreading branches; seg- 

 ments of the leaves linear-lanceolate ; ped. elons^ated, subc3dindric, one-flowered ; 

 invol. smooth. Plant about 2f high. Flowers orange-yellow. 



2. T. ERECTA. African Marigold. — Segments of the leaves lanceolate, ciliate- 

 serrate; ped. 1-flowered, ventricose and thickened at the .'^ummit ; invd. angu- 

 lar. — The heads are twice larger than in T. patnla, and on shorter peduncles, 

 — These are well known and popular g;arden flowers with several varieties. 



