92 Plants in New Hampshire and Vermont. [February, 
and is seen very commonly in the immediate vicinity of the river 
as far south, at least, as the Massachusetts line. Spoon-wood 
(Kalmia latifolia) and gray birch (Betula alba, var. populifolia) 
find their northern limit in this town at a point opposite Dum- 
merston, Vt. South of Brattleboro, deer grass (Rhexia Virgin- 
ica), false fox-glove (Gerardia flava) and at the mouth of the 
Ashuelot River in Hinsdale, N. H., Cornus paniculata and Alnus 
serrulata, are the principal additions before reaching Massachu- 
setts. 
Beside these there are others, and they would probably make 
up a much larger list, which are probably never found at these 
northern limits growing at an altitude much above that of six — 
hundred feet above the sea, but for which I have not been able 
to gather sufficient data to warrant making the same approxima- 
tion. 
I will mention the northern limit at which I have observed a 
few of them: moon-seed (Menispermum Canadense), ground- 
nut (Apios tuberosa), near Windsor, Vt.; Desmodium Canadense 
and Betula lenta at South Charlestown, N. H.; Prunus pumila, 
islands of the river near Quechee Falls in Plainfield, N. H.; Aster 
undulatus and water-plantain (Alisma Plantago) at Hanover ; 
Viola sagittata and river beech ( Carpinus Americana) at Ha- 
verhill, N. H. Calystegia sepium and Virginia creeper ( Ampe- 
lopsis quinquefolia) occur as far north as Lancaster, N. H., but 
are probably Alleghanian species which have been hardy enough 
to extend thus far northwards in spite of the increased severity 
of the climate. 5 
The coltsfoot (Tussilago Farfara), if an introduced plant, 
must have entered the Connecticut Valley by the way of Canada, 
and seems to find the soil and climate north of Dalton best 
adapted for its growth, being abundant on the high clay banks 
of the river and along the mountain tributaries, but occurring 
much more rarely below the altitude of six hundred feet. 
The distribution of the different species of grapes belonging to - 
this valley is somewhat interesting. Vitis cordifolia is the hard- 
iest, extending as far north as the foot of Fifteen Miles Falls. 
The summer grape (Vitis estivalis) has not established itself 
north of Bellows Falls. I have been unable to find that the fox- 
grape (Vitis Labrusca) is indigenous anywhere in this valley, 
north of Massachusetts; but it is common along Miller’s River 
and its tributaries in that State, which would indicate that the 
northern point for this species is near its mouth. - 
