302 COMPOSIT^E. TJielesperma. 



T. gracile, Gray, 1. c. More rigid, a foot or two high from a deep perennial root, less 

 branched, naked above : leaves once or twice 3-5-nately divided or parted into filiform-linear 

 or broader lobes, or some upper ones filiform and entire : bracts of the outer involucre 4 to 6, 

 very short, ovate or oblong ; of the inner one connate to above the middle, the edges of their 

 lobes slightly scarious : disk mostly yellow, scarcely brownish after anthesis : akenes less 

 papillose or roughened, the breadth of the summit exceeded by the subulate awns : rays 

 usually none, rarely present and 2 or 3 lines long. — Bidetis gracilis, Torr. Ann. Lye. N. Y. 

 ii. 215. Cosmidiinu gracilc, Torr. & Gray, 1. c. — Plains, Nebraska and Wyoming to 

 W. Texas and Arizona. (Adj. Mex.) 



* * Lobes of di-^k-corollas from ovate to oblong, decidedly shorter than the c^'lindraceous tliroat; 

 the proper tube also shorter than in the foregoing: pappus shorter and more coroniform, desti- 

 tute of retrorse bristles or hairs, or wanting. 



-1— Leafv-stennned, branching, lierbaceous to the ground: style-appendages subulate-tipped. 



T. subsimplicifolium, Gray. Stems slender, rigid, 1 to 3 feet high : leaves sometimes 

 all entire and filiform (1^ to 3 inches long), sometimes 3-5-parted into filiform entire lobes : 

 outer bracts of the involucre oblong to linear, short : rays half-inch long : akenes short- 

 fusiform : pappus 2 minute slightly hairy teetli, or obsolete. — Bot. Mex. Bound. 90. T. sim- 

 plicifolium, Gray, Kew Jour. Bot. 1. c. Cosmidiiim simplicifolium, Gray, Pi. Fendl. 86. — 

 Rocky prairies, Texas to Arizona. (Adj. Mex.) 



■t— -1— Low, branching from a lignescent base, very leafy below, sending up long and naked or 

 scapiform peduncles: outer involucre short and small: akenes fusiform, more incurved at 

 maturit3% 



T. SUbnudum, Gray. Rather stout: leaves thickish and rigid, once or twice ternately 

 j)arted into linear or lanceolate lobes: peduncles 4 to 10 inches long: head rather large 

 (half-inch high) : rays sometimes none, sometimes ample (the larger two-thirds inch long 

 and over half-inch wide) : style-apjjendages subulate-tipped : pappus a minute 4-5-toothed 

 naked crown, or obsolete. — Proc. Am. Acad. x. 72. Includes also T. suhsimplicifoliuin, var. 

 sraposum, Gray, coll. Parry, &c. — New Mexico, S. Utah, and N. Arizona, Palmer, Parry, 

 Ward. Also apparently Green River, Wyoming, Parry, a plant referred to T. (jracilc. 



T. longipes, Gray. Fastigiately much branched at the woody base, very leafy: leaves 

 3-5-parted into filiform divisions which are usually no wider than the rhachis : peduncles 

 filiform, wholly siinple, 5 to 10 inches long: head small (quarter-inch high), rayless : style- 

 appendages tipped with a very short cone : akenes barely 2 lines long, arcuate at maturity, 

 falling free from the chaff: pappus quite ob.solete. — PI. Wright, i. 109; Rothrock iu 

 Wheeler Rep. vi. 164. — Dry hills and banks, W. Texas and Arizona, Wright, Rothrock (not 

 showing the woody stems), Lemmon. (Mex., Schaffner.) 



118. BALDWINIA, Nutt., in the form of Balduina. {Dr. Wm. Baldwin, 

 collaborator witli Elliott, died early.) — Apparently biennials or annuals (of S. 

 Atlantic States), mostly glabrous or minutely puberulent ; Avith alternate entire 

 leaves, puncticulate iu the manner of Helenium and veinless, and solitary or corym- 

 bosely paniculate heads of yellow flowers, or those of the disk sometimes purplish- 

 tinged : fl. late summer and autumn. — Nutt. Gen. ii. 175; Ell. Sk. ii. 447; 

 Bcnth. &. Hook. Gen. ii. 391. Baldwinia and Actinospermnm (Ell.), Torr. & 

 Gray, Fl. ii. 388. (True affinity rather with the Helenioidece.) 



B. uniflora, Nutt. 1. c Stem rather stout, simple or simply branched, 1 to 3 feet high from 

 a perhaps " perennial " root, with terminal usually elongated peduncle hearing a solitary 

 large head : leaves obtuse, spatulate, or the u])per linear : bracts of the involucre numerous, 

 in about 4 series, thickish, at first appressed : r.ays 20 to 30, cuneate-linear, 3-toothed at 

 truncate apex, inch or more long : concreted chaff of recej)tacle truncate : akenes cylindra- 

 ceous-obconical, with pa])i)us of 7 to 9 narrowly oblong palea^ of nearly its length. — Ell. Sk. 

 ii. 447. — Low pine barrens, S. Carolina to Florida and Louisiana; first coll. by Bartram. 



B. multiflora, Ni;tt. 1. c. Slender, from an annual or biennial root, branching above, very 

 leafy up to the several or numerous slender peduncles, glabrous or sometimes sparsely hir- 

 sute : leaves all narrowly linear : heads small (3 or in fruit 5 lines high) : bracts of tlie 



