Tagetes. COMPOSITE. 359 



quarter-inch high : rays oval, short : receptacle flat and wholly naked : palese of inner pappus 

 narrowly lanceolate. PI. Fendl. 90 (as //. gnaphalodes) & 115 ; PI. Wright. 1. c. Gnapkali- 

 opsfs micropoidcs, DC. Prodr. vii. 258. Hills and plains, S. Texas, Wriyht, Havard, &c. 

 (Adj. Mex. ; first coll. by Berlandier.) 



4. THYMOPHYLLA, Gray. Paleas of the pappus 5 to 12, truncate and muti- 

 cous (yet in one species occasionally some are short-awned ! ), somewhat coriaceous, 

 distinct or cupulately connate. Proc. Am. Acad. xix. 42. Thymophytta, Lag. 

 Nov. Gen. & Spec. 25 ; Gray, PL Fendl. 91, & PI. Wright, i. 119, t. 7 ; Benth. 

 & Hook. Gen. ii. 410 (as Thymopkyllum). 



* Fruticulose plants, with habit and character of the acerose-leaved genuine species of Hymena- 

 tltvrum, but white tomentose, and rays in one species wanting. 



H. SETir6LiuM, Gray, 1. c. ( Thiimophylla setifolia, Lag. 1. c., on which the long imperfectly 

 known genus was founded), may possibly reach our limits. It has a canescent involucre, no 

 rays, and normally a pappus of 5 or 6 distinct quadrate paleae. But in some specimens of 

 Parry and Palmer's no. 516 occurs an inner alternating series of longer and narrower aristate 

 palcte, completely invalidating Lagasca's genus. 



H. Greggii, GRAY. A span or two high in dense tufts : branches thickly leafy up to the 

 filiform glabrate peduncles : leaves white-tomentose, short, Heath-like ; lower 3-7-parted, 

 upper entire, setaceous : involucre campauulate, glabrous, naked at base : rays 10 to 12, 

 short, but distinctly exserted, sometimes wanting : paleas of the pappus united into an entire 

 truncate cup. Proc. Am. Acad. xix. 42. Thi/mojihi/lla Grefjyii, Gray, PI. Fendl. 92 (speci- 

 men apparently rayless), & PI. Wright, i. 109, t. 7, radiate. S. W. Texas, on the Pecos, &c., 

 growing in large bunches, Wright. (Adj. Mex., Greg;/.) 



* * Annual, wholly glabrous, wholly resembling //. polycheelum and its near allies, except the 

 pappus. Lowellla, Gray. 



H. aureum, GRAY. A span or two high, erect or diffuse, much branched, bearing numer- 

 ous short-peduncled heads : leaves mostly alternate, pinnately parted into 7 to 9 linear-fili- 

 form pointless divisions: involucre broadly campanulate, 3 lines high : rays about 12, oblong, 

 3 lines long : pappus of 6 or 8 quadrate or oblong and erose-truncate paleie, in length little 

 exceeding the breadth of the akene. Proc. Am. Acad. xix. 42. Lou-dlia aurca, Gray, PI. 

 Fendl. 89, & PI. Wright, i. 118. Plains of Colorado to W. Texas; first coll. by Fendler, 

 next by Wright. 



168. TAGETES, Tourn. (A name of the early botanists for the 

 " French " or " African Marigold " of the gardens, T. patula, and its larger 

 form, T. erecta, L. Fuschius says it was applied by Apuleius to the Tansy : 

 some derive the word from Tages, an Etruscan deity.) Mexican and S. Amer- 

 ican herbs, mostly annuals, strong-scented, branching ; with opposite and some- 

 times alternate leaves, in one species nearly entire, in most pinnately divided, 

 having copious oil-glands, bearing large and showy or small and comparatively 

 inconspicuous heads of mostly yellow or orange flowers, in cultivation some flame- 

 colored or reddish. Inst. 488, t. 278; L." Gen. ; DC. Prodr. v. 642; Gray, 

 Proc. Am. Acad. xix. 42. 



T. LUCIDA, Cav., the species with simple and narrow sessile leaves, and cymose heads with 

 2 or 3 rather showy rays, may yet be found within our Mexican border. One of our two in- 

 digenous species has handsome exserted rays, the other has inconspicuous rays and the most 

 slender heads in the genus. 



T. Lemmoni, GRAY. Nearly glabrous, 2 or 3 feet high from a perennial root, lignescent at 

 base, rather slender, fastigiately branched, bearing numerous cymosely disposed heads on 

 slender short peduncles : leaves all opposite, 3-7-foliolate ; leaflets lanceolate-linear or some- 

 times lanceolate-oblong, with attenuate base, serrulate, not setiferous (an inch or two long), 

 sometimes a minute lower pair : involucre turbiuate-campanulate, 4 lines high : rays 6 to 8, 

 nearly half-inch long, obovate-oblong : lobes of the disk-corolla nearly beardless : pappus 



