SWAiVlP WHITE OAK. 
21 
posed from tlie soil in which it grows ; the pores are observable only 
between the concentrical circles, and are more regularly disposed than in 
other trees. 
This species is the largest and the most highly esteemed among the Oaks 
that grow in wet grounds. Its propagation should be attempted in the 
forests of Europe, where no doubt can be entertained of its success. The 
acorns -which I sent to France several years since, though sown upon 
uplands, have produced flourishing plants, which bear the winter of Paris 
withput injury. 
PLATE VI. 
Ji branch with leaves and fruit of the natural size. 
SWAMP WHITE OAK. 
OuERcus PRiNus DISCOLOR, Q. folUs oblongo-obovatis subtiis albo-tomentosis, 
grosse dentatis, basi integer rirais, dentibus inæqualibus dilatatis ; fructibus 
longe ped'uncidatis . 
Quercus bicolor. Willd. 
This species is known in the United States only by the name of Swamp 
White Oak, which indicates at once the soil which it prefers and its analogy 
to the White Oak. 
I first observed it near Portsmouth in New Hampshire; but it is less 
multiplied in this latitude than in the Middle and Western States. It 
particularly attracted my attention in New Jersey near the city of New 
York, on the Delaware in Pennsylvania, on the Susquehanna in Virginia, 
and beyond the mountains on the Ohio in Kentucky and on the Holston 
near Knoxville in East Tennessee ; I have also seen it on the shores of 
lake Champlain and lake Ontario. Except the District of Maine and the 
maritime parts of the Southern Section, it is diffused throughout the United 
States ; in comparison, however, with several other species, it is not com- 
mon, being found only on the edges of swamps and in wet places exposed 
to inundations, and not in the forests at large, like the White Oak, the 
Black Oak, &c. In New Jersey it is associated with the Pin Oak, the 
Red-flowering Maple, the White Ash, the Tupelo and the Shell-bark Hick- 
