198 Class XIX. Order II, 



down. Leaves numerous, linear, obtuse, with a small point, 

 very rough and rigid, upright, but reflexed as the plant grows 

 old, without nerves or dots. Peduncles few, near the ' top, al- 

 ternate, short, furnished with small leaves, one flowered. Flow- 

 ers purple. Woods and dry hills. August, September. Per- 

 ennial. 



ASTER SUBULATUS ? Mich. &ea side Aster. 



Leaves linear-subulate, entire, glabrous ; stem 

 glabrous, paniclcd, many flowered ; calyxes cylin- 

 drical, ligules of the ray minute. 



A native of the salt marshes. Stem erect, round, very 

 smooth, with numerous large, alternate branches. Stem leaves 

 long, linear, smooth, tapering to an acute point. Branches ax- 

 illary, somewhat clichotomous, many flowered. At the base of 

 each principal branch, between it and the leaf, is commonly a 

 smaller branch with two or three flowers. Calyx smooth, ob- 

 long. Ray pale and short. September. Perennial. 



ASTER SALICIFOLIUS. Ait. Willow leaned Aster* 



Leaves linear-lanceolate, entire, glabrous ; ca- 

 lyxes imbricated, lax ; stem smooth. Jlit. 



A very tall, slender species. Stem five feet high, smooth, 

 somewhat flexuous. Leaves long, linear, acute, entire, sessile, 

 smooth, with a rough edge. Branches alternate, slender, 

 smooth. Flowers on short stalks, blue. Found in the woods 

 on Concord'turnpike, Cambridge. September. Perennial. 



ASTER CYANEUS. C. Muhl. Blue flowered Aster. 



Leaves ovate-oblong, acute, clasping, cordate, 

 serrate ; stem panicled, glabrous ; scales of the ca- 

 lyx lanceolate, closely imbricate. Willd. sub. syn, 



Syn. ASTER AMPLEXICAVLIS. Willd. 



