334 CLASS' XIX. ORDER IL 



leaves oblong-heart shaped, pointed, serrate, downy underneath, 

 supported on long petioles, which are winged or dilated at the 

 base. Middle leaves panduriform, clasping. Upper leaves ovate 

 or lanceolate, nearly entire, clasping. Panicle lax, with slender 

 branches, covered with small leaves. Peduncles generally, but 

 not always, inclining one way. Flowers blue. — August, Sep- 

 tenaber. — Perennial. 



Aster L^vis. Willd. Smooth Aster. 



Leaves somewhat clasping, remote, oblong, entire, 

 shining, those of the root subserrate; branches sim- 

 ple, one flowered ; calyx imbricated ; the leafets 

 somewhat wedge-shaped, acute, thickened at tip; 

 stem smooth, angular. 



A smooth plant throughout, with somewhat fleshy leaves and 

 large purple flowers. — In wet grounds. — September, October. — 

 Perennial. 



Aster spectabilis. Willd. Showy Aster. 



Leaves lanceolate, roughish, somewhat clasping ; 

 the lower ones serrate in the middle ; branches co- 

 rymbed ; calyx leaves lax, foliaceous, somewhat 

 wedge-shaped and acute. 



This species is about two or three feet high with fine large 

 blue flowers. — Found in moist woods. — August, September. 



Aster Cornifolius. Miihl. Cornel leaved Aster. 



Leaves oblong-ovate, acuminate, entire, petioled, 

 smooth, rough on the edge ; stem smooth, panicle few 

 flowered; calyxes somewhat imbricated. Willd. 

 Syn. DiPLOPAFPUs coknifolius. Le^. 



A pretty early species. Stem erect, glabrous. Leaves on 

 very short petioles, narrow oval, acute at base, acuminated at 

 point, nearly smooth, the margin entire, rough, and slightly cili- 

 ated, the under surface pale. Panicle few flowered, Flowers 

 white. — Found in woods. — July, August.— Perennial. 



