Tagetes. LXXV. COMPOSITiE. 3^11 



13. H. DIVARICATES. Spreading; Sunjlower. 



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

 late, 3- veined, scabrous above, smuulh beneath ; pan irk trichotomous, slender, 

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

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

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

 nus, lew, yellow and very showy. The panicle is cither 2 or 3-lorked. This 

 plant is much improved by cultivation. Aug. Sent. 



(i. scabcnimus. St. subsimple ; lis. thick, exceedingly rough and rigid. — Bar- 

 rens, la. ! 



y. Lis. tcrnately verticillate. Otherwise as in /?. Barrens, la. ! 



^ § Disk yellow. * * Leaves alteriiate. 



14. H. GiGAN'TF.iis. (H. altissimu.s. Linn.) 



Lis. alternate (the lowest opposite), lanceolate, acuminate, .serrate, sca- 

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

 scales of the involiurc 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 h — r, opposite or alternate in various degrees. Rays 12 — 20. 

 Variable. 



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

 — L. I." Torr. tf- Gray. 



15. H. TOMENTosL's. Michx. Downy-leaved Sunjlovxr. 



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

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

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

 scaUs lance-linear, long-acuminate, villous, squarrose; cAo/TS-toothed, hirsute 

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

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

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



16. H. GROssE-sERRATUs. Martcus. Notch-leaved Sunflower. 



St. smooth and glaucous ; Ivs. 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, Sullivanf, &c., la. 

 Plummer, l\]., Mead,'ioL.a.. Allied to H. giganteus. Stem 4 — 6fhigh. Leaves 

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

 1.5—20, expanding near 3'. Aug. Sept. 



17. H. TUBERosus. Jerusalem Ariicholx. — Lvs. 3-veined, rough, lower ones 

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

 base. — % Native of Brazil. The plant has been cultivated for the sake of its 

 tuberous roots, which are u.sed 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 ajid grandson of Jupiter. 



Heads lieterogamous ; involucre simple, tubular, of 5 uiiitcd 

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

 erect awns. — ® Herbs of tropical America. Lvs. j)innately divided. 



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

 ments of the leaves linear-lanceolate ; ped. elongated, subcylindric, one-flowered ; 

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



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

 serrate; pod. 1-flowered, ventricose and thickened at the summit; invtd. angu- 

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

 — The.se are well known and popular garden flowers with several varieties. 



