Baccharis. COMPOSIT7E. 259 



cimens are not sufficient to allow of our ottering any opinion respecting the 

 species. 



* * Natives of California. 



5. B. consanguinea (DC.) : shrubby, much branched, glabrous, viscous 

 when young; the branchlets decurrent-angled ; leaves sessile, obovate-cunei- 

 form, obtuse, with 2-4 rigid acute teeth on each side; heads sessile at the 

 summit of the branches and branchlets, solitary, or mostly aggregated in 

 glomerules of 2-4; scales of the involucre in the fertile heads oblong-linear, 

 obtuse, with a membranaceous somewhat fimbriate margin ; the innermost 

 rather acute. DC. 2^1'odr. 5. ^j. 408 ; Hook. S^ Am. bat. Bccchey, suppl. 

 p. 352. B. glomeruliflora. Hook. S^' Arn. I.e. p. 147, excl. var. ji. (which 

 these authors now refer to B. pilularis.) 



California, Menzies, Dovglas, &c. — Leaves 6 lines long, about 3 broad, 

 slightly scaly above, DC. — Hooker & Arnott still doubt whether this species 

 be really distinct from B. glomeruliflora, or from B. pilularis. 



6. B. pilularis (DC) : somewhat shrubby, much branched, glabrous and 

 viscous; the branches angled ; leaves sessile, obovate-cuneiform, obtuse, en- 

 tire, or often slightly toothed, 1-nerved, coriaceous; heads globose, solitary at 

 the summit of the branches on the axillary branchlets, bracteate with mi- 

 nute leaves ; scales of the involucre in the sterile plant oblong, rather acute, 

 the margin membranaceous and somewhat fimbrillate at the apex. DC. 

 frodr. 5. p. 407 ; Null, in trans. Amcr. 2)hil. soc. I. c. 



CaWfonim, Douglas, jStidtall! — Leaves 4 lines long, and 2-3 broad; the 

 uppermost shorter than the heads. Heads about 2 lines in diameter. Fertile 

 plant unknown. DC. — "In my specimens of tlie fertile plant, the leaves are 

 often strongly denticulate, three-fourths of an inch long, by half an inch in 

 width : the capituli solitary or by threes. . . . Achenia smooth with 10 

 grooves, the ])appus of moderate length. A shrub 3 or 4 feet high. It an- 

 pears to be subject to the attack of some insect, which causes excrescences on 

 the branches ; and hence, I suppose, arises the specific name." Nutt. I. c. 



7. B. Douglasii (DC): herbaceous, erect, very glabrous, viscid; stem 

 simple, angled above ; leaves on short petioles, lanceolate, acute, entire, 

 3-nerved, both sides punctate ; corymb in the sterile plant compoimd, some- 

 what naked, fastigiate, bearing numerous heads; involucre campanulate; 

 the scales lanceolate, rather acute, with membranaceous ciliate margins. 

 (Leaves 2 inches long, 5-G lines wide, the upper narrower; pappus of the 

 sterile flowers whitish, as Jong as the involucre.) DC. prodr. 0. p- 400. 

 B. glutinosa. Hook. Sf Am. hoi. Beechey, p. 147, S^' suppl. p. 352, under 

 B. Douglasii, and by tnistake printed viscosa. B. Pingrsea, Nutt. .' in trans. 

 Amer. phil. soc. {n. ser.) 7. p). 337. Molina linearis. Less, in Linnaa, 6. 

 p. 139 cy 505. 



California, Chamisso, Capt. Beechey, Douglas, Nuttall ! — This plant, 

 which Lessing and Nuttall take for B. Pingraea, Hooker and Arnott remark 

 that they are still unable to distinguish from the Chilian B. glutinosa. 



8. B. viminea (DC) : shrubby, glabrous; branches terete, the branchlets 

 striate-nerved ; leaves on short petioles, oblong-lanceolate, acute at each end, 

 slightly 3-nerved at the base, entire, or minutely denticulate at the apex ; 

 corymbs somewhat racemose, crowded, terminating the branchlets ; heads of 

 the sterile plant pedicellate ; the scales of the involucre oval-lanceolate, 

 acute, membranaceous, clHatc. DC. prodr. 5. p. 400; Hook. S^'. Am. I.e. 



California, Douglas, — Fertile phmt unknown. Leaves 12-14 lines long, 

 those of the branchlets short and scale-like. Pappus of the sterile flowers 

 scarcely longer than the involucre. DC. 



