194 COMPOSIT^E. Aster. 



Var. Batoni. Rather tall (2 or 3 feet high), branching, bearing numerous and 

 smaller paniculate or glomerate heads, and comparatively narrow lanceolate leaves : involu- 

 cre loosely imbricated ; outer and sometimes inner bracts foliaceous, either erect or sqnar- 

 rose-spreadiug : transitional between A. Joliaceus and A. Oreyanus, and some specimens 

 approaching A. Chamissonis. — A. Douglasii mainly, Eaton, Bot. King Exp. I4l. — Open 

 ground or woods and along streams, Brit. Columbia to California along the borders of 

 Nevada, and northeastward to Montana. 

 A ■ amplus, LiKDii. Glabrate : stem over 2 feet high, strict, robust, remotely leafy : leaves 

 thinnish, acutely and saliently serrate or serrulate, or some entire, oblong or oval-lanceolate ; 

 cauline 2{ to 5 inches long, mostly with narrowed partly clasping base ; radical larger (over 

 . iuch and a half wide), tapering into very long wing-margined petioles: heads several on 

 rather naked peduncles : bracts of the involucre lanceolate and linear, of about two series, 

 loose, of equal length, all rather shorter than the developed disk. — Hook. Fl. ii. 10, & DC. 

 1. c. 236; Torr. & Gr.ar, Fh ii. l-'J". — Northern Rocky Mountains, Drummond. Not since 

 collected, seen ouly in herb. Hook., perhaps rather of the following group. 



-H- 4-t- Cauline leaves either conspicuously contracted at base, some as it were into a winged peti- 

 ole, or with auric idiite-clasping insertiou, or with both; involucre lax. 



= Narrowed base of leaves not cordate- or auriclate-clasping at insertion. 



A. EUiottii, ToRB. & Geay. Glabrous, or the stout (2 or 3 feet high) stem minutely pubes- 

 cent, very leafy to the corymbosely paniculate inflorescence : leaves thickish, oblong-lanceo- 

 late, serrate with small and appressed rather obtuse teeth, tapering below into the narrowed 

 and as if wing-petioled base ; upper 4 to 6 inches and lowest a foot or less long, including tlie 

 channelled winged petiole : heads numerous, nearly half-inch high : bracts of iniulucre all of 

 nearly equal length, loose, very narrowly subulate-linear, their green tips mostly spread- 

 ing : rays narrow, " bright purple," 5 lines long. — Fl. ii. 140 ; Chapm. Fl. 204. A. puniceus, 

 Ell. Sk. ii. 355, by the detailed descr. and specimen, excl. char, from Willd. — Swamps in 

 the low country near the coast, S. Carolina to Florida. , 



A. patulus, Laji. Glabrous or somewhat pubescent, either low or 2 to 4 feet high, with 

 loose flowering branches : leaves ovate- or oblong-lanceolate, sharply serrate in the middle, 

 acuminate at both ends, the lower into wing-margined petiole or attenuate base, even the 

 uppA: with obscure if any auriculate insertion : heads loosely paniculate, about 4 lines high : 

 bracts of involucre linear, erect or nearly so, loosely imbricated, the outer more or less 

 shorter: rays light violet or purple, varying to white. —Diet. i. 308; DC. Prodr. f. 234. A. 

 Trnc/esranti, Hoffm. Phyt. Blatt. 86, t. D, f. 2, not L. .4. pallens & probably A. prcecor, 

 AViUd. Enum. Suppl. 58. A. Conndi (Wendl. ex Nees, where published, and why Cornuti?) 

 & A. acuminatus, Nees, Ast. 58 & 60. A. abbreoiatus, Nees, Syn. Ast. 16. — Canada and 

 New Brunswick to E. New England, chiefly known in cultivation : introduced into the Paris 

 garden in the days of Tournefort and Vaillant. There is a low form in the gardens, early 

 flowering, having weak and often decumbent stems, as Lamarck characterized his species. 

 The taller plants flower later. 



= = Base of most cauline leaves auriculate- or cordate-clasping at insertion : involucral bracts 

 loose, disposed to be equal in length and the outer foliaceous. 



a. Atlantic species, chiefly Northern. 

 A. tardiflorus, L. A foot or two high, glabrous or stem somewhat pubescent (not hispid), 

 bearmg corymbosely disposed heads: leaves lanceolate or oblong-lanceolate o-radually acu- 

 minate, mostly with contracted or tapering base and with auriculate or obliquely semi- 

 auriculate msertion : heads about 5 lines high : rays pale^■iolet. — Spec. ed. 2 ii. \'>:n (founded 

 on plant cult, in hort. ITpsal., low, with weak stems, which grew for 18 years before it 

 flowered, and then late, whence the name : represented in the herb, bv two specimens of the 

 uon-flowermg, with the semi-amplexiraul spatulate-lanceolate leaves well marked, and one 

 flower-bearmg), not of later authors and gardens.' .1. v!mii„',is, Xeos Ast 68 in iiart not 

 Lam. nor Willd. — Along streams, Lower Canada and New Brunswick to Labrador. Nearly 

 related to .1, patulus on the one liand, to the siu'ci-eding and to A. puniceus, var. lavicaidls, 

 on the other. Ordinarily not a late-flowered species. 

 •A. prenanthoides, JIuhl. a foot or two high, nearly glabrous, or the slender stem 

 pubescent m hues, bearmg loosely corymbiform cymose heads: leaves thin and elongated 



