222 COMPOSIT.E. Baccharis. 



•^B. Wrightii, Gray. Very smooth ami glahrous, a foot or two high, diffusely branching, 

 sparsely leaved : slender brant'lies terminated by solitary heads : leaves small ; uppermost 

 linear-subulate : involucre campanulate, 4 or 5 lines high ; its bracts lanceolate, gradually 

 acuminate, conspicuously scarious-margined, with a green back : pappus fulvcjus or some- 

 times purplish, four times the lengtli of the scabrous-glandular 8-10-nerved akeue. — PL 

 Wright, i. 101, & ii. 83. — W. Texas to S. Colorado and Arizona. (Adj. Me.Y.) 



~ 33. Texana, Gray. Glabrous, a foot or more high, with many nearly simple rigid stems 

 from a woody base, leafy to the top, where it bears a few somewhat corymljosely disposed 

 heads : leaves an inch or two long, rather rigid : involucre 3 lines long, of firmer and nar- 

 rower merely acute bracts : akenes smoother. — I'l. Fendl. 75, & PL AVright. 1. c. Linostjris 

 Texana. Torr. & Gr.iy, PL ii. 2.'32, male plant. Aplopappus linearifoUus, Buckley in Proc. 

 Acad. Pliilad. 1861, 437. — Texas, forming large patches in dry prairies, Berlandier, Drum- 

 mondy Wright, &.C. 



§ 2. Pappus of the fertile flowers more or less copious, but uniserial or nearly 

 so, conspicuously elongating in fruiting, soft and fine, mostly flaccid and bright 

 white: akenes 10-nerved: branching shrubs, glalirous or nearly so, usually 

 vi.scous with a resinous exudation : leaves sometimes lobed or angulate-dentate : 

 heads glomerate or paniculate : receptacle naked and flat. 



* Eastern species, of the coast or along streams in subsaline soil: shrubs 3 to 12 feet high. 

 " B. halimif olia, L. Canliue leai-es from dilated-obovate to oblong with cuueate base, attenu- 

 ate into a petiole, laciniately or angulately 3-9-toothed, those of the flowering branchlets be- 

 coming lanceolate and mostly entire : heads in pedunculate and paniculate glomerules (3 to 5 

 together) : involucre of the male heads only 2 lines long, of oblong-ovate obtuse bracts; of 

 the female rather longer and narrower, the inner bracts linear-lanceolate and acute. — .Spec, 

 ii. 860; Michx. PL ii. 125; Duham. Arb. i. t. 60. — Sea-coast, New England to Florida aud 

 Texas. (W. Ind.) 

 _B. glomeruliflora, Pers. Brighter green: leaves mostly cimeate-obovate or the upper- 

 most spatulate, less petioled or sessile, merely angulate-toothed : heads larger, sessile or in 

 very short-peduncled glomernles in the axils of tlie upper lea^•es : involucre of both sexes 

 campanulate, pluriserially imbricate, of obtuse bracts. — Svn. ii. 423; Pursli, PL ii. 523. 

 B. scssilijiora, Jlichx. PL ii. 125 ; Ell. Sk. ii. 320, not Vahl. — Swamps near the coast, X. Caro- 

 lina to Florida. (Bermuda.) 

 B. salicina, Torr. & Gray. Leaves mostly subsessile, from oblong to linear-lanceolate, 

 sparingly toothed, rarely entire : heads or glomerules pedunculate : involucre of both sexes 

 campauulate (nearly 3 lines long), of mainly ovate and acutish bracts. — PL ii. 258. B. sali- 

 ci folia, Xutt. Trans. Am. Phil. Soc. vii. 3.37. — Colorado (banks of the Arkansas, &o.) to 

 W. Texas, on the Kio Grande, near El Paso. 

 B. angustifolia, Michx. Rather strict: leaves narrowly -linear (larger 2 or 3 inches long, 

 a line or two wide), entire or with few denticu]ati(jns; and some lower ones broadly lanceo- 

 late and more serrate : heads or glomerules short-pedunculate, amplv paniculate: involucre 

 2 lines long, of obloug-ovate or lanceolate bracts, the outer obtuse,"iunermost acnte. — Fl. 

 ii. 125; Ell. 1. c; Torr. & Gray, L c. B. salicina. Gray, I'l. Wright, i. 101, not of ii., nor 

 Nutt. — Brackish marshes, &c., S. Carolina to Florida, and to Texas on the liio Grande ; also 

 S. Arizona, Lemmon. (Adj. Jlex.) 



* * ^Ve~tern species (Pacific coast to .Vrizona) : branches smooth or nearly so, striafe-angled. 

 B. pilularis, DC. Either depressed, spreading on tlie ground, or more erect and sometimes 

 4 feet high, leafy up to the glomerate sessile heads: leaves short (seldom over inch long) 

 obovate and cuneate or roundish, very olrtuse, sessile, coarselv fe^^■-toothed or some entire • 

 mvolucre nearly hemispherical, 2 lines long; its bracts o, al" aud oblong, all but the imier- 

 most very obtuse: flowers bright white, fertile pappus not over 4 lines long. -5. pilularis 

 & B consayinnea. DC. Prodr. > . 407, 408 ; Torr. & ( Jniy, Fl. ii 259 ; Urnth: Bot. Suliih. 25. 

 B. glomeruh flora, Le.ss. in Linn. vi. 506; Hook. & Ani. Bot. Beech. 147. — Near the coast 

 Monterey, California, to Oregon. ' 



-B. Emoryi, Ghav. Er«t, with slender branches, 2 to 15 feet high : canliue leaves mostly 

 oblong or tlie lower broader, wiili attenuate or ciuieale base and tlie larger somewhat 



