Tagetes. LXXV. composite. ^ 



13. H. DiVARiCATUS. Spreading Sunflmoer. 



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

 late, 3- veined, scabrous above, smooth beneath ; pa?iicle trichotomous, slender, 

 few-flowered. — Not uncommon in rocky woods, brooksides, U. S. and Brit. Am, 

 Stem 5f high, glaucous. Leaves rather abrupt at base, tapering to a long, 

 acute point, with obtuse serratures. Flowers large, although small for the ge- 

 nus, few, yellow and very showy. The panicle is either 2 or 3-forked. This 

 plant is much improved by cultivation. Aug. Sept. 



0. scabcrrimiis. S/. subsimple ; ii'5. thick, exceedingly rough and rigid. — Bar- 

 rens, la. ! 



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



^ § Disk yellow. * * Leaves alternate. 



14. H. GiGANTEUs. (H. altissimus. Linn.) 



L/vs. alternate (the lowest opposite), lanceolate, acuminate, serrate, sca- 

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

 scales of the irivolucre 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 § — 1', opposite or alternate in various degrees. Rays 12 — 20. 

 Variable. 



" /?. avMsuus. T. & G. Lvs. nearly all opposite, sessile and rounded at base. 

 — L. I." Torr. cj- Gray. 



15. H. TOMENTosus. Michx. Dmumj-leaved Sunflower. 



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

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

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

 scales lance-linear, long-acuminate, villous, squarrose; cAo/ 3- toothed, hirsute 

 at summit. — Dry soil. 111. to Ga. A large species, 4 — 8f high, with ample 

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

 elliptical lanceolate, 18" by 5". Aug. — Oct. f 



16. H. GROSSE-SERRATUS. Martcus. Notch-leaved Smifloiver. 



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, Sullivant, &c., la. 

 Plumvier,\\\., Mead, ioliVi.. Allied to H. giganteus. Stem 4 — 6fhigh. 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. TUBERosos. Jerusalem Artichoke. — Lvs. 3-veined, rough, lower ones 

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

 base. — 'i\. Native of Brazil. The plant has been cultivated for the .sake of its 

 tuberous roots, which are used as a substitute lor potatoes. It is naturalized in 

 borders of fields, hedges, &c. Sept. ^ + 



35. TAGETES. 



Named for Tages, a Tuscan divinity, son of Genius and grandson of Jupiter. 



Heads heterogamous ; involucre simple, tubular, of 5 united 

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

 erect awns. — ® Herhs of tropical America. Lvs. jphmately divided. 



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

 ments of the leaves linear-lanceofate ; ped. elongated, subcylindric, 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, verrtricose and thickened at the summit ; invol. angu- 

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

 —These are well known and popular garden flowers Math several varieties. 



