Baccharis. COMPOSIT^E. 221 



linear, mostly entire, narrowed downward ; lowest broader, incisely toothed or laciniate • 

 involucre cinereous-puljesoeut : ligules very small, shorter than the style and tlie at leno-th 

 ferruginous pappus. — Spec. iii. 1955 ; Bentli. H. Austr. iii. 495. E. amiiiguus, ISchultz Bip. 

 in Phyt. Canar. ii. 208. E. Bonariensis, DC. Prodr. v. 289, in part. Conyza ambir/na, DC. 

 Fl. Franc. & Prodr. 1. c. C. sinuata, Ell. Sk. ii. 323. — Waste grounds, coa.st of S. Carolina 

 to Florida. (lutr. from tropics.) 



■i- -)— Indigenous weeds ; but the common species now cosmopolitan : heads only 2 lines high : 

 involucre almost glabrous: leaves comujonly more or less hispid-ciliate. 



E. Canadensis, L. From sparsely hispid to almost glabrous : stem strict, I to 4 feet high, 

 with numerous narrowly paniculate heads, or in depauperate plants only a few inches hio-h 

 and with few scattered heads : leaves linear, entire, or the lowest spatulate and incised or 

 few-toothed : rays white, usually a little exserted and surpassing the style-branches. — Spec, 

 ii. 863; Fl. Dan. t. 292; Torr. & Gray, Fl. ii. 167. E. paniculutus, Lam. Fl. Franc. E.pu- 

 sillus, Nutt. Gen. ii. 148, a depauperate form. E. strictum, DC. Prodr. v. 289, a .strict and 

 setose-hispid form. Senecio ci/iaiiis, Walt. Car. 208. — Open or waste grounds, throughout 

 temperate N. America, especially .the warmer parts. (Nat. in Eu., &c.) 



E. divaricatus, Michx. Low (a span to a foot high), diffusely much branched, somewhat 

 fastigiate : leaves all narrowly linear or subulate, entire : rays purplish, rarely surpassing 

 the style-branches or the pappus. — Fl. ii. 123; Nutt. 1. c. ; Torr. & Gray, 1. c. — Open 

 grounds and river banks, Indiana to Minnesota, Nebraska, and Texas. 



50. CON"^ZA (Tourn., L. in part), Less. (Name used by Dioscorides and 

 Pliny for some kind of Fleahane, sujiposed to come from kwvohJ/, a flea.) — Her- 

 baceous or some shrubby, of various habit ; what were the original species belong 

 to Inula, &c., those now referred to it are of warm regions, and approach the 

 Ccenotus section of Erigeron. — Benth. & Hook. Gen. ii. 283. 



C. Coiilteri, Gray. Apparently annual, a foot or two high, commonly branched, bearing 

 nximerous small heads in a mostly crowded tln-rsoid leafy panicle, viscidly pubescent or 

 pai'tly hirsute with many-jointed hairs : canline leaves linear-oblong, the lower spatnlate- 

 oblong and with partly clasping base, fi'om dentate to laciniate-pinnatifid (an inch or two 

 long) : involucre 1 or 2 lines high, hirsute with rather soft spreading hairs, considerably 

 shorter than the soft pappus : flowers whitish ; the numerous fenmle with an entire corolla- 

 tube barely half the length of the style; hermaphrodite flowers oidy 5 to 7. — Proc. Am. 

 Acad. vii. 355, & Bot. Calif, i. 332. C. suhdccurrcns. Gray, PI. Fendl. 78, & PL ■\Vright. 

 i. 102, not of DC. Erirjeron discoideus, Kellogg, Proc. Calif. Acad. v. 55. E. subdecitrrcns, 

 Gray, Bot. Mex. Bound. 78. — River-bottoms, &c., W. Texas and Colorado to Arizona and 

 California. Much resembling C. subdernrrens, DC, which, from the more developed corolla 

 of the ray, is referred to Eiii/cron, but has also a different pubescence. (Adj. Mex.) 



Var. tenuisecta. Greener, extremely leafy: leaves pinnately or even somewhat 

 bipinnately parted into linear lobes : heads smaller and very numerous in an ample panicle. 

 — S. Arizona, near Fort Huachuca, Lemmon. Apparently growing with the ordinary form. 



51. BACCHARIS, L. (Named after Bacchus, unmeaningly.) — Shrubs, 

 undershrubs, or some perennial herbs ; with alternate simple leaves, sometimes 

 reduced to scales, and the branches commonly striate or sulcate-angled, bearing 

 small heads of white or whitish or yellowish flowers. A huge American genus, 

 chiefly tropical and S. American. — Bentli. & Hook. Gen. ii. 286; Gray, Proc. 

 Am. Acad. xvii. 212. 



§ 1. Pappus of the fertile flowers very copious and pluriserial, elongated in 

 fruiting, soft: akenes 5-10-costate: stems herbaceous from a lignescent or more 

 woody base: leaves linear, 1 -nerved : receptacle flat and In'oad, naked. Here 

 also B. jitncea, of S. Brazil (Arrhenachne, Cass., Stephananthus, Lehm.), and 

 B. Seemanni, of Mexico. — Gray, Proc. Am. Acad. xvii. 211. 



