Askr. COMPOSITJE. 175 



"A. macroph^^llus, L. St'-m stout, somewhat striatC'-finoiled, 2 or 3 feet high: leaves 

 thickish, serrate with proportiouallv smaller and hroader les^ salient teetli, alirupdv acumi- 

 nate ; radical and lowest usual] v bruadlv ovate- or even reuifurni-ci Tdate (4 t<i 10 inches loL:g) ; 

 upper ovate to oblong, often wing-petioled, and uppermost .sometimes se.-~iie by a bread 

 ba-c . involucre coniinonlv 5 liue> high, often ^ iscid-puberulent, in fruit much surpassing tl.e 

 fur-iforni-linear ob>curely compressed akeues : ra} s 10 to 15, white or tinged with bluish 

 j.urple.— Spec. ed. 2, ii. 12.'i2; WiUd. 1. c. ; Torr. & Gray, 1. c. £-(/v''<a iiiacrojJii/lla & 

 K. ./(t.s^if'i, Ca.^s, I3ict. 1. c. E. macrophi/lla (larger-leaved aud more M;aliruu.-- form), (f/o,:,e- 

 ratu, & S.'Jireberi (thinner-leaved form in >liade and drier suili, Xees, A-~t. 140. L'.uUa 

 ■i< I'reberi, lutijolia {A. latil'i'.i'is. 1 >e^f Cat., form approaching .1. cori/iKlvsrs}. glomerata, 

 S: macrophi/ua, DC. 1. c. — W'.'rtdlands. commonly in damp or rich suil. from CaLada and 

 ^Manitoba to the mountains of Georgia. A'ariable s[jeLies : of which fornix with sinaller 

 head< and thinner leaves appear to pa-~ into -1. cori/mho^ns. A robust form, with large 

 head^, more glandular involucre and peduncles, upper leaves ovate and sessile, lower and 

 petioled cattliue leaves all rouuded at base, and most of the radical one* little cordate (.1. 

 iiaicrojJu/!iii.^ of Willd. herb, chietiy, the rays perliaps violet), comes uear the next following. 



§ 6. A^TEK proper. Heads various: bracts of the involucre (or at least the 

 outer ones) with green herbaceous tips or appendaire-. or wholly or partly foli- 

 aeeous, imbricated or pluriscrial, their niarLiiii^ not -curious : akeues from obovate- 

 oblong to linear. S-several-uerved : pappus rather fine and soft, or in the first 

 sulisectiou more coarse and rigid, simple, i. e. with no exterior setulose .-eries. — 

 § Aster proper, with part of Oritrophium '^ Cuiliastrinii. Torr. c^c Gray, Fl. 

 Probable hybrids abound. 



* 1. Involucre well imbricated ; the bracts appre=.=ed and corLiceous, with short and al'rnpt mostly 

 obtuse herbaceou.= or foiiaceous spreading t p* (the oiitermu-t ^onirtinio- lot.se and more h''.:- 

 aceou-): akene* narrow. 5-10-nerved, from minutely pubescent to glabrous: pappus mi-ily 

 mure n^id than m any of the foUowiiig: rays showy, blue or violet: leave- of firm texture, 

 more or less scabrous (the la.-t -])ecie- excepted), none of them cordate or clasping (§ CalVi- 

 oitrum, Torr & Gray. Fl- ii. 106, cxcl. .-pee.).— >PKCT-iBU.t;s. 

 -i— Ead:eii] and lowes* caulnie leaves ovate or ovate-oblong, some with rounded b.ise. or even sub- 

 cordate heads half-inch high: mvolucre nearly hemi^l)he^ical; the green tip- of the involucral 

 brarts very short and either indistinct and erect or abruptly fpreading: stems a foot or two 

 1 _-h. Transition to Biij<''\ possibly hybrids of the preceding -i eeics with true Asters, being 

 lueal and rare, bui if so the other parent not at all determinable. 

 A. miriibilis, Tokr & Ge-it. Seabrou-puliescent, bearing few or several somewhat panicu- 

 late heads ; leaves all ovate or oval, finely aud acutely serrate, liispidulon— eabrous above ; 

 upper small and roundisli. lower abruptly coutracted into margined peti^ !e- (true radical not 

 seen): involucre nearly smooth and glabrous, neither glandidar norvi.-iid; its bracts with 

 roundish-obtuse abrupt and very sliort s.juarrose-spreading tips : rays about 2o. half-inch 

 lonu' violet: pappus ferruginous. —Fl- ii. 165. — :N'ear Columbia, S Carolina, (Jibbts, ,^ept., 

 IS '.3. not since collected. 

 A. Herveyi, Gr.iy. Slightly scabrous, the corymbose branches and short peduncles alandu- 

 lar-pnl .erulei'it . leaves mintitely or obscurely serrate : radical and lowest caulme ovate on 

 slender nalced petir.les; upper lanceolate : liead* loosely corymbiform cymose : involucral 

 bracts all erect and with less distinct close tip-, pulvernleut-glandular ; the short outer obloEg- 

 linear- rav- 13 to 24. narrow, half-inch loiif:. hlac or violet. — Man. ed. 5, 2.30. Eurylia 

 co,„mixta,'SQii<. Ast. 143. Biotm commlrta, DC, Trodr v. 26-5 lexJ. syn. ?), i< a robust culti- 

 vated form of this, which ha< Ions been in the garden-, of unknown origin. — Borders of 

 oak wood-, E. Ma*- and Rhode Island, near the coast, Hervej. >'irgent, &c. Grows in com- 

 panv with A. macrophylhis and .1. gmctabilis, evidently most related to the former, both m 

 foliage and involucre: fl. Aug . Sept. 



T— 4— Radical leaves all tapering at base into winged or margined petioles. 

 ++ Involucre sqHarro.-=e bv the spreading or recurving herbaceous tips of the bracts : akenes 

 slender, sb^htiv pubescent, leaves obscurely veined, slightly scabrous: rnotslocfcs slender and 

 creeping, -tern's low. bearing few or several (rarely sohtary) short-pedoncled and showy heads. 

 Atlaiuie U >. species. 



