Statistics of the Flora of the Northern States. 17 
alpine list, only two have been observed anywhere in the Alle- 
ghanies, (and these only south of lat. 36° 30’), viz. Scirpus cces- 
itosus and a form of Trisetum subspicatum. None of the rest are 
own in the Kastern United States so far south as lat. 40°. 
€ re-appearance of some northern species in high southern 
latitudes is another matter, and to be considered under the head 
of disjoined species. 
he range of our amphigzean species might be considered in 
reference to the stations they affect or the medium in which they 
grow; but this would be likely to bring out no important re- 
sults beyond the familiar ones that aquatic, palustrine and mari- 
time species are among those of widest range in latitude. The 
lists already given enable any botanist to do it. 
The Species common to this Country and to Europe in respect to 
the size of the Orders and Genera they belong to. 
seen that our nine largest families (as enumerated in order on 
ra 
area than the species of small genera do, Our 320 amphigvean 
Species evidently tend to confirm this view. They belong to171 
* Composite, out of 273 species, 9 are common to Europe. 
Peraceze, 48.526 2 
Cy « 9 7 se 
Graminee, « 162 32 Z 
Legumi ks " 
, ore? MTs “ 
, oR act 9 " . 
Scrophulariacer, “ 54 aes 1) : 
Orchidacex, = =. * 0 . 
i * ; “ 4 9 a“ 1 0 “ “ 
Labiatz, ee oot 8 - ¥ 
