314 Class XIX. Order II. 



petioles winged ? stem panicled, hairy ; calyxes loose- 

 ly imbricate. Willd. 



Stem erect, somewhat flexuous, in some plants a little hairy, 

 in others quite smooth. Leaves heart-shaped, with a deep si- 

 nus, acutely serrate, acuminate, downy underneath. Petioles 

 with a membranous edge. Panicle terminal, many flowered. 

 Flowers small, purplish white, the disc varying from red to yel- 

 ow. Woods. September. Perennial. 



ASTER CORYMBOSUS. Jlit. Corymbed Ulster. 



Leaves ovate, sharply serrate, acuminate, the lower 

 ones heart-shaped, petioled, naked ; stem ending in a 

 fastigate corymb ; branches hairy ; calyxes oblong, im- 

 bricate, its scales closely pressed. Willd. 



A pretty large, white, flowering plant. Stem smooth, frequent- 

 ly of a dark reddish colour. Lower leaves heart-shaped, pe- 

 tioled, smooth, toothed ; upper ones ovate, acuminate, subsessile. 

 Flowers white, in a large, flat topped corymb, the branches of 

 which are slightly pubescent. Woods and shades, Roxbury, 

 Brookline. August. Perennial. 

 ASTER MACROPHYLLUS. Large leaved Aster. 



Leaves ovate, petioled, serrate ; the upper ones 

 ovate- heart shaped, sessile ; lower ones heart shaped, 

 petioled ; petioles somewhat margined ; stem branch- 

 ing, diffuse j calyxes cylindrical, closely imbricate. 

 Willd. 



The root leaves are uncommonly large, heart shaped, serrate 

 and acute, rather smooth. Stem furrowed, scarcely rough. 

 Upper leaves sessile, ovate, a little hearted at base. Scales of the 

 calyx closely appressed. Ray pale blue. Woods. September. 

 Perennial. 



324. ANTHEMIS. 



ANTHEMIS COTULA. L. May Weed. 



Receptacle conical, its scales bristle shaped ; seeds 

 without any border ; leaves doubly pinnatifid, smooth- 

 ish. Sm. 



