3 68 



COMPOSITAE. 



[Vol. III. 



Aster puniceus lucidulus A. Gray, Syn. Fl. i: Part 2, 195. 1884. 

 Aster lucidus Wender. Flora, 12: Part 1, Ergbl. 23. 1829. Not Moench 1802. 



Stem nearly or quite glabrous; leaves crowded, entire, or nearly so, thin, glabrous or slightly 

 rough-pubescent. Quebec to New England, Ontario and Michigan. 



31. Aster tardiflorus L. Northeastern 



Aster. (Fig. 3765.) 

 Aster tardiflorus L. Sp. PI. Ed. 2, 1231. 1763. 



Stem glabrous, or slightly pubescent above, 

 corymbosely branched near the summit, i-3 

 high. Leaves lanceolate or oblong-lanceolate, 

 serrate with low teeth, or some of them entire, 

 acuminate at the apex, narrowed into a clasping 

 base, glabrous or nearly so on both sides, roughish- 

 margined, 3 / -6 / long, 4 // -io // wide; heads about 

 i' broad, not very numerous, involucre hemis- 

 pheric, its outer bracts broad and foliaceous, often 

 6" long, acute, somewhat unequal; rays 20-30, 

 violet; pappus nearly white; achenes pubescent. 



Along streams, Massachusetts to Labrador. Closely 

 related to the preceding species. Aug.-Oct. 



32. Aster patulus Lam. Spreading 

 Aster. (Fig. 3766.) 



Aster patulus Lam. Encycl. i: 308. 1783. 



Pubescent, or nearly glabrous; stem i-4 high. 

 Leaves oval, ovate, or oblong-lanceolate, sharply 

 and irregularly serrate, rather thin, acute, acumi- 

 nate, or blunt at the apex, the lower 3 / -6 / long, 

 I'-ity wide, narrowed into margined petioles, 

 the upper sessile and somewhat clasping; heads 

 numerous, panicled, about i / broad; involucre 

 campanulate, 3 // -4 // high, its bracts linear to lin- 

 ear-lanceolate, acuminate, not foliaceous, loosely 

 imbricated in 3 or 4 series, the outer shorter than 

 the inner; rays violet-purple or rarely white. 



New Brunswick to New Hampshire. Also called 

 Smooth Red-stem Aster. Sept. 



33. Aster prenanthoides Muhl. 

 Crooked-stem Aster. (Fig. 3767.) 



Aster prenanthoides Muhl.; Willd. Sp. PI. 3: 2046. 



1804. 



Stem glabrous, or pubescent in lines above, 

 flexuous, much branched, i-2 high. Leaves 

 thin, oblong to ovate-lanceolate, sharply and 

 coarsely serrate, scabrous above, glabrous or 

 nearly so beneath, 3 / -6 / long, 9 // -iS // wide, 

 acuminate at the apex, abruptly narrowed below 

 into a broad margined entire petiole, the base 

 auriculate-clasping; heads usually numerous, 

 i / broad or more; involucre hemispheric, its 

 bracts linear, acute, green, spreading, imbri- 

 cated in 3 or 4 series, the outer shorter; rays 

 2 ~3, violet, 4 // -6 // long; pappus tawny; 

 achenes pubescent. 



In moist soil, Massachusetts to Wisconsin, south 

 to West Virginia, Kentucky and Iowa. Aug.-Oct. 

 Aster prenanthoides porrectifolius Porter, Mem. Torr. Club, 5: 326. 1894. 

 Leaves narrowly lanceolate, much elongated, sometimes 8' long, gradually contracted into an 

 entire clasping base. Pennsylvania. 



