188 COMPOSITE. Aster. 



not Ait. 1789, nor of WilM. A. Tradescanii, L. Spec. ii. 876, as to herb. ("H. XJ.") Sc Hort. 

 Ups. 262, not Hort. Cliff. & syn. Morisou (whence the name Trudescanti] ; Ait. Kew. 1. c. 

 204, as to var. floribus caruleis. A. jimceiis, jVit. 1. c, as to pi. H. Kew. 1777 only. A. dra- 

 cwiculoides, Willd. Spec. iii. 2050, a form nearest to the preceding species, not Lam. A. re- 

 curvatus, WiUd. Herb, fol. 1, but hardly of Spec. iii. 2047. A. lanctui atus, Willd. 1. c, & A. 

 beUidiflui-KS, V.'illd. Enum., are cultiyated forms. A. Lamarckianus, Nees, Ast. 100, at least 

 as to syn. Lam. A. tenuifolius (Xees in part), and A. simplex, Torr. & Gray, 1. c, mainly, 

 and A. (Ainic.us, Nees, Syn. 27 & Ast. 96, by the char., belong to this rather than to the next 

 species, as do some indigenous (but not original) specimens named by Nees. A. saliclfolius, 

 SchoUer, M. Barb. Suppl. (1785), 328, — to which belong A. salignus, Willd. Spec. iii. 240, 

 A. simplex, WiUd. Enum. 887, and probably A. strictus, Poir. Suppl. 498, — represents a 

 form of this same species, either very early naturalized in Hungary and Germany, or possi- 

 bly indigenous. A. laxus, Willd. Enum. 886, seems to be a similar form. — Low or moist 

 ground, New Brunswick to Saslcatchewan, E. Montana, and I^ouisiana, abundant in the 

 Northern States, and polymorphous. A small, and slender form, in Northern sphagnous 

 bogs, with linear leaves, resembles A. longifolius in habit and foliage. 

 A. saliclfolius, (Lam.?) Ait. Resembles the preceding, erjuaUy branching : leaves com- 

 monly less elongated, less serrate or entire, of firmer texture, apt to be scabrous, and the 

 fine reticulation of the yoinlets manifest: involucre more imbricated; its bracts firmer, 

 linear, witli .shorter and more definite green tips, these acute or obtusisli : heads (as large as 

 in preceding or broader) disposed to be thyrsoid or racemose-glomerate on the ascending 

 branches: rays purplish to violet, rarely white. — Lam. Diet. 1. c.'i (no Lamarckian speci- 

 mens seen); Ait. Kew. iii. 203; Muhl. Cat.; Darlingt. EI. Cest. 407. A. prcealtus, V oil. 

 Suppl. i. 493, merely a change of Aiton's name, not Nees. A. eminens, WiUd. Enum. 886, is 

 either this or the preceding. A. rirjiduhis, Uesf. Cat. (1815), 122. A. obliquus, Nees, Ast. 

 76, cult. form. A. onustus? and perhaps ^1. canieus, Nees, Ast. 122, 96, on cult, forms, but 

 char, and some specimens of latter are of the preceding species. A. stenoplijllas, Lindl. in 

 DC. Prodr. v. 242, narrow-leaved form. A. rarneus, in part, & A. Greenei, Torr. & Gray, El. 

 ii. 134. — Low grounds, Canada and New England to Saskatchewan, E. Montana, and Texas : 

 most abundant in the Mississippi valley. The original of Ait. Kew., in the Banksian her- 

 barium, is of flowering brandies only, with small leaves. 

 ■-'— ' Var. subasper. A rigid and commonly scabrous form, with thyrsoid-contracted and 

 foliose inflorescence : broad heads commonly foliose-bracteate : bracts of involucre broader 

 and firmer, often obtuse: rays violet. — A. subasper, Lindl. in Conip. Bot. Mag. i. 97, & DC. 

 Prodr. V. 257. A. curneiis, var. subasper, Torr. & Gray, 1. l. — Illinois to Texas. 



Var. cserulescens. A strict and rigid form, with the rather large heads in a more 

 naked inflorescence, and leaves aU entire : involucral bracts with narrower acute or acutish 

 tips. — A. aerulescens, DC. Prodr. v. 235. — Eocky banks, E. to W. Texas, Berlundier, Lind- 

 heimer, &c. 



i. Involucre of the small or barely middle-sized heads looser and less imbricated ; but its bracts 

 erect or hardly .at all spreading, narrow pnd linear, wieh acute and not at all dilated green tips, 

 or outermost wholly herbaceous, these little shorter or equalling the inner: leaves linear or lan- 

 ceolate, not rigid, not dilated at base, sparingly denticulate or entire. 



■ A. junceus, Ait. Slender, a foot to a yard high, the smaller plants simple-stemmed and 

 with few heads, smooth and nearly glabrous : leaves linear or nearh- so (3 to 5 inches long, 

 2 to 4 lilies wide), entire, or lower with rare denticulations : involucre 3 lines high ; its bracts 

 all small, narrowly linear and erect, tliinnish, manifestly imln-icated in 2 or 3 series and the 

 outer more or less shorter (thus connecting with A. paniclatiis of the preceding subdivis- 

 ion) ; rays hght violet-purple, 4 or 5 lines long. — Hort. Kew. iii. 204, tbe iudi"enous si.eci- 

 men Halifax, rjalbr,ren. A. salirifolias, Ricliards. App. Frankl. ,Tourn. ed. I, 47S, ed. 2, 20, 

 not Alt. A. laxifolius, Lindl. in Hook. Fl ii. 10, mainlv; hardly of Nees, Ast. who had a 

 cult, plant of Leyden Garden, and in herb. Lindl. .'in named a plant of .1. poninlaiiis^ A. 

 laj-if,!i.us, var. borealis, & var. tallfurus, Torr. & (irnv, Fh ii. 138. A. astiviis Grnv Man 

 mainly. A. Imrenlis, Provanclier, Fl. Canad. i. 30S. — Wet iiiea.l.nvs and cold boo's' Nova 

 Scotia to Ohio, Michigan, Wisconsin, and north to Hudson's Hun , Saskatchew:ui, and Rocky 

 Mouiitiiius, &c. Appears to i>a.ss into the next. 

 A. longifolius, Lam. a foot to a yard high, glabrous or pubescent, leafv : leaves elon- 

 gated-lanceolate to hnear-lanceolate, entire or sparingly serrulate, 3 to 7 inches long, taper- 



