XXX, I. THE SUMMER GRAPE. 469 
Sp. 2. Tse Summer Grape. V. estivdlis. Michaux. 
Figured in Audubon’s Birds, with the Pileated Woodpecker, II, Plates 111 
and 114. 
This vine has much the habit of the last, but may be com- 
monly distinguished by the absence of down upon the branches 
and leaf-stalks, and by the nakedness of the lower part of the 
very long trunk, in consequence of the dying of the lower 
branches. 
The recent shoots are smooth, or with very little down, 
hardly dotted. The leaves are four to seven inches long, and 
somewhat less in width, very deeply heart-shaped, more in- 
clined to 3- than 5-angled, often deeply lobed; when young, 
they are of a reddish or purplish tinge, shining above, with 
tufts or cob-webs of brown down beneath; when old they are 
glaucous beneath, and downy only on the nerves and veins,— 
which are often purple near the radiating point. 
Tendrils long, smooth, once or twice divided. Racemes very 
long, compound, the lower branch often becoming a tendril. 
Berries half an inch in diameter, dark blue, of an agreeable 
taste,—ripe in October. 
Of this grape there are several varieties, one of which is so 
marked that Pursh suspected it of being a separate species. It is 
conspicuous for its very deep, palmate lobes, separated by rhom- 
boidal sinuses. I have not been able to examine the fruit and 
flowers. It is the Frost Grape or Winter Grape, V. sinudta of 
Pursh, a vine with 5-lobed leaves, the lobes arranged almost in 
a circle, the lower ones meeting or nearly meeting at base. 
Sinuses of the shape of the hull of a ship, nearly closed in by 
the lobes, and rounded or acute at base. Surface nearly smooth 
above, whitish or glaucous, with little tufts of ferruginous down 
thickly scattered, together with hairs, on the nerves and veins 
beneath ; margin serrate with large obtuse serratures. Fruit 
in clusters long and simple, or with 2 to 5 branches, small, half 
an inch in diameter, ripened by the first hard frosts, thence 
called Frost Grape, but always acerb. Fruit-stalk smooth, 
purplish, fruit purple. Trunk deep purple, bark separating in 
long slender stripes. This agrees in many respects with the 
