CHAP. CV, CORYLA‘CER. QUE/RCUS. ¥885 
Engravings. Michx. Quer., t. 34.; N. Amer, Syl., 1. t.24.; our Sigs. 1753. and 1754. ; and the plate of 
this tree in our last Volume, ; 
Spec. Char., §c. eaves downy beneath, obovate-oblong, dilated, widely 
sinuated ; lobes short, obtuse, slightly toothed, bristle-pointed. Calyx of 
the fruit flat underneath; nut globose. (Willd.) A tree, varying from 
80 ft. to 100 ft. high. Introduced in 1800. 
Varieties. Michaux, in his Flora Borealis Americana, gives 
the two following forms of this species : — 
¥ Q. t. 1 anguldsa Michx.; Q, nigra Pursh Arb. Am., 
p. 120.; Q. americana Pluk, Alm., p. 309. ; 
Q. velutina Lam. Dict.; Q. tinctoria Bart. 
Trav., p. 37.; and our figs. 1753, 1754. — 
Leaves smooth, lobed with angular lobes. 
’ Cup top-shaped. Nut globose, and de- 
‘pressed at the summit. A native of the 
shoresof Lake Champlain, in Pennsylvania, 
and of high mountains in Carolina and 
Georgia. we 
* Q. #. 2 sinudsa Michx.; Q. nigra Wang.; and our figs. 1755, 1756, 
and 1757.— Leaves deeply sinuated. Cup flat and turbinated. 
Nut ovate. Native of South Carolina and Georgia. 
Description, §c, This 
oak, according to the 
younger Michaux, is the 
loftiest oak in America, 
being from 90 ft. to 100 
ft. high, with a trunk 
from 4 ft. to 5 ft. in dia- 
meter. The trunk is 
straight, and is covered 
with a deeply furrowed 
bark of middling thick- 
ness, but always black, 
or of a very deep brown 
colour; whence, pro- 
bably, the tree derives 
its common name in 
America; viz. the black 
oak. The dark hue of 
the bark easily distin- é 
guishes this tree from Q. 
rubra, Q. coccinea, and 
Q. ambigua, in the 
northern provinces ; but, 
in the southern ones, 1755 
Q. falcata having bark of the same colour, Q. tinctoria can only be dis- 
tinguished by its buds, which are longer, more acuminate, and more scaly, 
than those of the former species. The inner bark of Q. tinctdria, if chewed, 
is very bitter, and gives a yellow tinge to the saliva, which is not the case with 
the bark of Q. falcita. The wood is reddish, coarse-grained, and porous, 
like that of all the red oaks. The leaves are large, deeply laciniated, and 
resemble those of Q. coccinea, but they have fewer lobes, never exceeding 
four or five ; while the leaves of the old trees of Q. coccinea have from five 
to seven: they are also less openly and roundly sinuated, less shining, of a 
duller green, and, during a part of the summer, have their surfaces roughened 
with small glands, which are visible to the eye and sensible to the touch ; and 
which are et found on the young shoots. In autumn, the leaves of young 
trees turn to a dull red; but those on old trees become yellow, or of a yel- 
