CkssXIX. Order II. 311 



.the top of the stem. Calyx scales linear-lanceolate, of a dark 

 brown on the inside. Ray of a deep purple, crowded. Road 

 sides, South Boston, Brooklinc, &c. September. Perennial. 



ASTER MISER. />. Small flowered Aster. 



Leaves sessile, lanceolate, serrate, smooth ; calyx 

 imbricated v\ ith acute scales; disc equal to the ray ; 

 stem pubescent. 



A variable species with small, white flowers. Dry fields and 

 road sides. July, August. Perennial. 



ASTER DUMOSUS. L. Bushy Aster. 



Leaves linear, glabrous ; those of the branches very 

 short ; branches panicled ; calyx cylindrical, closely 

 imbricate. 



A polymorphous white Aster, with a yellow disc, which turn? 

 brown, and the ray sometimes approaching 1 to violet. 



ASTER DIFFUSUS. Ait. Spreading Aster. 



Leaves elliptic-lanceolate, serrate, glabrous ; branch- 

 es spreading ; calyxes imbricate, stem pubescent. Ait. 



A common, bushy Aster, with a profusion of white flowers. 

 Stem branching, slightly pubescent. Branches numerous, long 

 and slender, spreading, leafy, many flowered. Leaves lanceo- 

 late, rough at the edge, slightly serrate in the middle ; those of 

 the branches small, entire. Flowers small, very numerous, 

 somewhat racemed, white. Woods and road sides. August. 

 September. Perennial. 



ASTER CONYZOIDES fVilld. Conyza. Aster. 



Leaves oblong, three nerved, narrowed at base, 

 acute, the upper ones sessile, nearly entire, the lower 

 ones petiok'd, serrate ; stem simple, corymbed at top ; 

 calyx cylindrical, squarose ; rays live, short. 



Stem mostly smooth. Lower leaves frequently obovate or 

 spatulate. Calyx of whitish scales with green tips as in A. soli- 

 dagiueus. Kay white. Woods. July, August. Perennial. 



