66 Statistics of the Flora of the Northern States. 
Rhyne a fusca, and the three species of Carex would cer- 
tainly be expected to have a more northern range. (C. levigata 
has been found but once. What is called C. vulpina is probably 
not distinct enough from C. alopecoidea; and C. muricata, if 
rightly identified, may have been introduced, at least into New ° 
England, where it occurs only in suspicious situations, and rarely. 
The two species of Spartina belong properly to America, being © 
found only in a few places on the me of fherépm where they 
seem to have effected a chance | 
The following species, 36 in stage are not known to reach 
af at country, at least sensible to pass, the 50th parallel of 
tity 
Ranunculus widen Atriplex hastata. 
Nuphar Kalmiana. Salsola Kali. 
a verna. Humulus Lupulus. 
Drosera longifolia. Betula alba, var. 
Sagina procumbens. Taxus baccata, var. 
Oxali acetosella. Typha a angustifolia. 
“ stricta. Valenti — : 
Geranium Robertianum. Spiran 
Vicia Microstylis monoplylo 
Geum strictum. Juncus Stygius 
“ _ rivale. effu 
Potentilla argentea. ee gibba 
Lythrum § Vg Najas flexilis. 
Circvea Luteti Zannichellia palustris 
Myriophytiaxi + vertiillati Ruppia maritima, 
‘ rus flavesccns 
Samolus Valerandi. Carex fulva. 
Scrophularia nodosa. Milium effusum. 
Upon this list I remark, first, that two of the <tr although 
admitted as indigenous in the Manual of the Botany orthern 
nited States, were probably introduced from Bure e irs the 
wtilainent of the country ; namely Draba verna and Potentilla ar- 
entea, At least the expression of doubt which in the work just 
mentioned is thrown upon the former, I now think equally ap- 
plies to the latter. I never saw either ‘of them growing in other 
icious situations. They are found only in the Hastern 
United States and in the long-settled parts of Canada; while in 
a “ pe the first falls short of, and the second barely enters Lap- 
and. 
Lythrum Salicaria has better claima to citizenship, at least in 
Eastern New England, but it is rr clear from suspicion. Doug- 
las sme it “ wet meadows of Upper ee but if m4 
_ indigenous to this country it is that it does not exten 
farther north. Sih Sees 
Some of the forms which I have felt obliged to join with Xan- 
thium strumarium seem to be indigenous in the nosthwestern por- 
