;68 



COMPOSITAE. 



[Vol. III. 



Aster puniceus lucidulus A. Gray, Syn. FI. i; Part 2, 195. 1884. 

 ^.s/fr/«(r/rfK.5 Wender, Flora. 12: Part I, Ergbl. 2,-i. 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 

 A.ster. (Fig. 3765.) 



Ailet- lardifloius L. Sp. PI. Ed. 2, 1231. 1763. 



Stem glabrous, or slightly pubescent above, 

 corymbosely branched near the summit, l°-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.-Oet. 



32. Aster patulus lyam. Spreading 

 Aster. (Fig. 3766.) 



Aster paluUis 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, 

 \'-2'/i' wide, narrowed into margined petioles, 

 the upper sessile and somewhat clasping; heads 

 numerous, panicled, about \' broad; involucre 

 campauulate, '^"-\" higli, its bracts linear to lin- 

 ear-lauceolate, 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. .\lso called 

 Smooth Red-stem .\ster. Sept. 



33. Aster prenanthoides Muhl. 

 Crooked-stem Aster. (Fig. 3767.) 



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



1804. 



Stem glabrous, or pubescent in lines above, 

 flesuous, 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"-i.S" wide, 

 acuminate at the apex, abruptly narrowed below 

 into a broad margined entire petiole, the base 

 auriculate-clasping; heads usually numerous, 

 1' broad or more; involucre hemispheric, its 

 bracts linear, acute, green, spreading, imbri- 

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

 20-30, 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. 1S94. 

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

 entire clasping base. Pennsylvania. 



