AsTKR. COMPOSITE. 133 



heads often somewhat racemose; leaves smooth, or frequently scabrous 

 above ; scales of the involucre narrowly linear, acute, loosely imbricated. — 

 A. bellidiflorus, Will.d. enum. 2. p. 886 ; iVet'5, Ast. p. 97 ; DC. prodr. 5. 

 p. 240 ,- Lindl. ! in Hook. fi. Bor.-Am. 2. ^. 11. A. angustus & rigid ulus, 

 Nees, synops. p. 26, S^ p. 29. — Varies: 1. Leaves narrowly lanceolate or 

 linear, elongated, nearly entire : 2. Leaves shorter and usually entire ; heads 

 smaller. (A. dracunculoides, Willd. spec. 3. p. 2050, Sf enum. I. c, fide 

 Nees. (v. sp. hort. Berol.) A. leucanthemos, " Desf. cat. hart. Par. ed. 3. 

 p. 401" ; Nees, Ast. p. 95 ; DC. I. c. ; not of Raf. A. bellidiflorus, Nees, 

 synops. p. 21. A. artemisiajflorus, Poir. suppl. 1. p. 500.): 3. Lower 

 leaves ratlier broadly lanceolate, sharply and often coarsely serrate, or some- 

 limes nearly entire. 



Low or moist soil, Canada (y. from the Saskatchawan !) and Northern 

 States ! to the upper districts of N. Carolina. Aug.-Oct. — Stem 2-4 feet 

 high, usually rather stout and rigid ; the branches often pubescent, especially 

 in lines. Cauline leaves varying from 2i to 5 or even 6 inches in length 

 (those of the branches very gradually reduced in size), narrowed at the base, 

 tapering above to a long attenuate very sharp point, scabrous-ciliolate under 

 a lens, of a rather firm texture, with a strong midrib, the veinlets copiously 

 and conspicuously reticulated beneath. Heads about middle-sized (larger 

 than in A. miser) ; the scales of the involucre acute or acuminate, somewhat 

 ciUate ; the exterior often greenish throughout, the others with short green 

 tips. Rays numerous, considerably longer than the disk (which sometimes 

 turns purplish), pale purple or nearly white, usually assuming a deeper 

 tint before fading. 



52. A. carneus (Nees) : glabrous, or the strict racemose branches some- 

 what pubescent in lines ; leaves uniform, entire or nearly so, narrowly lan- 

 ceolate, mucronate-acuminate, slightly scabrous above, with serrulate-sca- 

 brous margins; the lower more or less attenuate towards the base ; the upper 

 shorter and partly clasping; heads (middle-sized) racemose towards the 

 summit of the leafy branches; involucre obovate, manifestly shorter than 

 the disk ; the scales unecjual, lanceolate, abruptly acute, closely imbricated ; 

 rays rather large. — Nees, synops. p. 26, d^- Ast. p. 96 ; Lindl. ! in herb. 

 Hook. A. laxifolius y. carneus, Lindl. in DC. prodr. 5. p. 236. A. obli- 

 quus, DC. ! jjrodr. 5. p. 237, partly. — Varies, with the heads few and near- 

 ly sessile, on short leafy branches, which are aggregated in a compact ra- 

 ceme. (A. salicifolius, Muhl. ! in herb. Ell., partly.) 



i(3. subasper: racemosely much branched ; the branches usually very nu- 

 merous, rather strict and rigid, puberulent, bearing numerous densely race- 

 mose heads; leaves minutely scabrous above ; those of the branches shorter, 

 oblong-linear or lanceolate. — A. subasper, Lindl. ! in Hook, compan. to bot. 

 mag. 1. jj. 97, S^' in DC. prodr. 5. p. 237. — Varies: 1. Exterior scales of 

 the involucre somewhat spatu late-linear, obtuse or abruptly and very slight- 

 ly acute : 2. Stem densely racemose-compound at the summit ; leaves of 

 the branches and branchlets very short. (Louisiana, Dr. Leavenworth!) 

 A state of the plant with short leaves and smaller heads scattered along the 

 slender branches connects it with our var. y. 



y. ambieuus : heads racemose along the branches, somewhat scattered, 

 on short peduncles ; involucre conspicuously shorter than the disk ; cauline 

 leaves elongated, rather broadly lanceolate, much attenuate at each end, 

 sometimes sharply serrate in the middle ; those of the branches nearly as 

 in var. a. 



Moist soil, Massachusetts, (near Boston, Dr. Boott !) to Pennsylvania, 

 Muhlenherg .' Schweinitz ! and Ohio, Dr. JRiddell ! Mr. Sullivant! (3. St. 

 Louis, Missouri, Drummond ! Indiana, Dr. Clapp ! Louisiana, Dr. Leaven- 

 worth! y. Ohio, Dr. Paddock ! Sept.-Oct. — Cauline leaves (numerous) 

 usually 2 to 3 or 4 inches long, of the same firm texture as in the preceding. 



