114 
corymbosus, 
A, alatus. 
Cornifolius, 
POLYGAMIA, SUPERFLUA. 
Heart-leaved Aster. 
From one to three feet high. Flowers pale-blue or violet; 
sometimes whitish. In woods and thickets, common. Peren- 
nial. August. 
In Muhlenberg’s Catalogue, this Aster stands synonymous 
with A. heterophyllus of Willd.—perhaps heterophyllus of 
his Mss. or Enumeratio—the heterophyllus of his species plan- 
tarum, being given on the authority of Thunberg, from the 
Cape of Good Hope. : 
15. A. leaves ovate, narrowly serrate, acuminate, 
somewhat smooth; lower ones cordate, petio- 
late: petioles naked; stem smooth, corymbose- 
fastigiate ; branches hairy; calices oblong, im- 
bricated; scales obtuse, closely adpressed.— 
Willd. and Pursh. 
A. corymbosus, Ait. 
Corymbous-flowered Aster. 
From fourteen inches to two feet high. Flowers white, in a 
large corymb. On the shaded rocks bordering the Schuyl- 
kill; in shaded woods and thickets, every where common. 
Perennial. July. 
leaves deeply and sharply serrated, long-acumi- 
nate; petioles with broad wings. B. 
A. corymbosus, 4 alatus, Bart. Prod. Fi. Ph. 
This is a permanent variety of the preceding, which I have 
constantly observed, not only in this vicinity, but in other 
parts of the United States. Grows with No. 15. July. 
16. A. smooth; leaves oblong-ovate, acuminate, 
on short petioles, margin rough; stem gla- 
brous ; panicle few-flowered; branches 2-flow- 
ered; calices somewhat imbricated.— Willd. 
A. Cornifolius, Muhl. 
Dogwood-leaved Aster. 
A very strongly characterized species, with leaves resem- 
bling those of Dogwood. It is one of the most common 
species allthrough Maryland, where it attains a height of four 
feet. In this vicinity it is very rare, and I have not met with 
it above two feet high. Flowers white, large. In the thickets 
a little west of M*‘Mahon’s Garden, and in those four miles 
above the falls of the Schuylkill; scarce. Perennial, August, 
September. 



