226 New or rare Plants of the State of New York. 
VALERIANE.E. 
12. Valeriana sylvatica, Rich, in Frankl. Jour. app. 
p. 42. Hook. Fl. Bor. Am. I. p. 291. BecTc, Bot. N. and 
Middle States, p. 164. 
Very abundant in a sphagnous swamp in Wayne county, 
near the shore of Lake Ontario ; where it was discovered, in 
the summer of 1833, by Dr. Sartwell. My specimens agree 
in every respect with those from Prof. Hooker, in Prof. Tor- 
rey's herbarium. 
COMPOSITE. 
13. DiPLOPAPPUs albus, HooTi. Fl. Bor. Am. II. p. 21. 
Aster albus, ( Willd. Herb.) Spreng. Sijst. Veg. III. p. 528 ? 
Chrysopsis alba, Nutt. Gen. II. p. 152, {v. sp.in Herb. Nutt.) 
Doellingeria? ptarmicoides, Nees ab EsenbecJc, Ast.p. 183. 
On the rocky banks of Black River, near Watertown, Jeffer- 
son county ; where it is very abundant, and was first noticed by 
Dr. Crawe. Flowers early in August. 
Obs. This interesting species was discovered by Nuttall 
around Fort Mandan, on the Missouri : it has also been found 
on the shore of Lake Superior, by Dr. Pitcher, and on the 
banks of the Saskatchawan, by Dr. Richardson ; so that its 
geographical range is very extensive. I have not been able 
to find any trace of an outer pappus in the numerous specimens 
which I have examined. They agree in all respects with a 
specimen from Prof. Hooker, (in Herb. Torrey,) except that 
in our plant the hairs of the inner pappus are subclavate at the 
extremity. Our plant appears to me to differ from Doellingeria 
of Nees ab Esenbeck only in wanting the outer pappus. I have 
no means of determining whether this species is identical with 
Aster albus of Willdenow's herbarium ; but as there is a species 
under this name in the catalogue of Muhlenberg, from whom 
Willdenow received many North American Asters, it is highly 
probable that this synonym is correctly referred. 
