Statistics of the Flora of the Northern States. 65 
Myosurus minimus occurs with us only in the valley of the 
Mississippi,—thence south to Texas and west to the Pacific, but 
not extending northward beyond lat. 45°. It has all the appear- 
ance of being indigenous; and in Oregon it is accompanied by a 
second species which is also a native of Chili. In Europe it oc- 
curs as far north as Finland. 
ria aquatica seems to be a very rare plant in North 
America, found only in the northeastern corner of the United 
States.* From its size, aspect, and place of growth it is exceed- 
Mountains south of Pennsylvania, and apparently so in the west- 
ern part of New York. It is not known north of lat. 44°,, and 
in Kurope it does not reach the Arctic circle. 
. Myosotis arvensis is not common here, and has probably been 
introduced, 
__ Salicornia mucronata, Bigel., is most probably not identical with 
its homonym on the coast of Spain. . 
_ Polygonum dumetorum (if our P. scandens really belongs to 
It,) does not pass the 45th parallel with us, while in northern 
urope it crosses the Arctic circle. ; 
r Chestnut is one of the few American trees which can any- 
how be identified or confounded with European species, It no- 
here occurs north of lat. 44° or 45° in this country; and as 
; rhaps not really indigenous in any 
higher latitude in the Old World, we have here either a very 
Would some little differences in the fruit, such, however, as would 
e of : the same 
trict, on 
Polygonatum latifoli: : is is a case of i fect. identifica- 
tion ; ‘the een ee = called being. known to us onl cd 
“pecimens, sent from Pennsylvania by Muhlenberg to Will- 
enow, 
ek . 16 
Manual, Ka lis’ vies the habitat of this plant, which has 
: mistake in respect to P nick 
Kindly been pointed out by Prof. Tuckerman, Nuttall long ago gathered it in the 
* Paris, Maine, ay that Nuttall’s station was Baeeiyith d 
essrs. Tuckerman and Oakes; but I am informed that th Be Bace! 
one now known in this country, is Echo Lake, in the Franconia Hamp- 
hire, where it was detected in 1844 by Prof ckerman, 
curate botanist, indeed, in the pages of this Journal, for September, 1848. 
SECOND SERIES, VOL. XXIII, NO. 67.—JAN., 1857, 
9 
the Genera of N. American Plants Illustrated, i, p. 164, no less than in the 
There inade x i 
