962 FLORA. 



lower petioled, acuminate at the apex, narrowed at the base, roughish-margined, 

 the larger about 7.5 cm. long; branches very slender, recurved, bearing few or 

 solitary heads, clothed with leaves 1-2 cm. long, the uppermost leaves very small 

 and bract-like; involucre about 6 mm. high, its bracts linear, acute, greenish- 

 tipped; heads nearly 2.5 cm. broad, the rays purple. In dry woods, Waterford, 

 Conn., C. B. Graves. Sept. 



63. Aster salicifolius Lam. WILLOW ASTER. (I. F. f. 3792.) Stem rather 

 slender, paniculately much branched, usually very leafy, 6-15 dm. high, glabrous, 

 or somewhat pubescent above. Leaves firm, lanceolate or linear-lanceolate, rough- 

 margined, acute or acuminate, narrowed and sessile or slightly clasping at the 

 base, entire or sparingly dentate with low teeth, glabrous or nearly so, 5-10 cm. 

 long. 4-12 mm. wide, the lowest sometimes petioled, those of the branches grad- 

 ually smaller; heads numerous, 16-25 mm - broad; involucre broadly turbinate, its 

 bracts linear-oblong, appressed, imbricated in 4 or 5 series, their green tips acute 

 or obtusish; rays numerous, violet, or violet-purple, or sometimes white, 6-8 mm. 

 long; pappus white; achenes minutely pubescent. In moist soil, Me. and Ont. to 

 Mass, and Fla., west to Mont., Mo. and Tex. Intergrades with A. paniculatus. 

 Aug. -Oct. 



Aster salicifdlius sub&sper (Lindl.) A. Gray. Stem scabrous ; leaves more or less so. 

 Ind. to Mo. and Tex. 



Aster salicifblius stenoph^llus (Lindl.) Burgess. Leaves narrowly linear-lanceolate, 

 small, those of the branches numerous and minute; bracts of the involucre linear-subu- 

 late. Southern N. Y. and eastern Penn. to Va. 



64. Aster paniculatus Lam. TALL WHITE OR PANICLED ASTER. (I. F. f. 

 3793. ) Stem glabrous or nearly so, paniculately much branched, 6-25 dm. high. 

 Leaves lanceolate to oblong-lanceolate, acuminate at the apex, narrowed to a ses- 

 sile or slightly clasping base, glabrous, usually thin, roughish-margined, those of 

 the stem sparingly serrate in the middle, or sometimes very nearly entire, 7-15 cm. 

 long, 6-12 mm. wide, the upper and those of the branches gradually smaller; heads 

 numerous, 16-20 mm. broad; involucre nearly hemispheric, 6-8 mm. high, its 

 bracts narrowly linear-lanceolate, acute or acuminate, appressed, green-tipped, 

 imbricated in 4 or 5 series; rays numerous, white, or faintly tinged with violet, 

 6-8 mm. long; pappus white or nearly so; achenes minutely pubescent. In moist 

 soil, N. B. to western Ont. and Mont., south to N. J., Va., Ky., La. and Kans. 

 Aug. -Oct. 



Aster paniculatus bellidifl6rus (Willd.) Burgess. Leaves narrowly linear, acuminate 

 at both ends, entire, or remotely appressed- serrate, chiefly locm. long and 7 cm. wide, or 

 less; heads numerous, rather densely clustered on the ascending branches of the large 

 panicle. In moist or wet soil, in open situations, N. B. to western Ont., N. Car., Mo. 

 and Kans. 



Aster paniculatus simplex (Willd.) Burgess. Leaves oblong-lanceolate or oblanceo- 

 late, thin, long-acuminate at both ends, the larger often 2 dm. long and 25 mm. wide, 

 sparingly serrate with low teeth; inflorescence leafy, the heads less showy than in the pre- 

 ceding. In shaded moist places, Mass, to Ohio, Va. and Ky. 



Aster paniculatus acvitidens Burgess. Leaves oblong-lanceolate, the larger often 

 15 cm. long by 3 cm. wide, very sharply serrate, at least above the middle; branches 

 often very short, sometimes elongated. Along streams and ditches, Conn, to Va., Ohio 

 and Kans. 



Aster paniculatus cinerdscens Fernald. From Maine, is described as cinerous-hir- 

 sute, a character otherwise unknown in this species. 



65. Aster Missouriensis Britton. MISSOURI ASTER. (I. F. f. 3794.) Stem 

 densely puberulent or pubescent, at least above, much branched, 6 dm. high or 

 more. Leaves thin, oblong-lanceolate to oblanceolate, acute or acuminate, sharply 

 serrate above the middle, gradually tapering to an entire sessile or slightly clasping 

 base, or the lower petioled, puberulent above, finely pubescent beneath, the larger 

 7-10 cm. long, the upper much smaller, entire; heads 12-16 mm. -broad, panicled, 

 short-peduncled. or terminating short leafy branchlets, sometimes somewhat 

 secund; involucre 4-6 mm. high, its linear acute bracts well imbricated, ciliate or 

 pubescent; rays white. In moist soil. Kans. and Mo. Sept. -Oct. 



66. Aster Tradescanti L. TRADESCANT'S ASTER. MICHAELMAS DAISY. 

 (I. F. f. 3795.) Stem slender, paniculately branched. 6-15 dm. high, the branches 

 usually ascending and often pubescent in lines. Stem-leaves linear- lanceolate or 



