monoecia triandria. 
607 
obtained sufficiently large, to be used in the construction of vessels. The 
small trees are much used in fencing for posts, hence its common name of 
“Post Oak.” Near the sea-coast of Carolina and Georgia it rarely becomes 
a large tree; but, in the fertile lands in the State of Alabama, it attains a 
great size. 
Grows in moist or gravelly clay soils. 
Flowers April. 
20. Lyrata. Walter. 
Q. foliis oblongis, 
sinuatis, glabris, lobis 
oblongis, sub acutis, 
superioribus dilatatis, 
angulato-truncatis; ca- 
lycibus fructus nucis 
magnitudine; glande 
globosa, subtecta. 
Leaves oblong, sinu- 
ate, glabrous, lobes ob- 
long, nearly acute, the 
upper dilate, angled; 
calyx of the fruit as 
large as the nut; nut 
globular, nearly cover- 
Walt. p. 235. Sp. pi. 4. p. 453. Mich, 2. p. 295. Pursh, 2. p. 623. 
Nutt. 2. p. 215. 
A large tree attaining the height of 60 — 70 feet, and a diameter of 2—4, 
with branches somewhat regular, and a head of dense and handsome foliage. 
Leaves long, irregularly and lyrately sinuate, the lower lobes generally acute, 
the upper obtuse and sometimes emarginate, glabrous on both surfaces, 
nearly sessile. Nut of a middling size, almost globular, covered excepting 
its mucronate summit, with its scaly cup. Cup muricate, on a short pe- 
duncle. 
The timber of this tree is said by Michaux to be valuable, but inferior to 
the White Oak. It is, in fact, so circumscribed in its habitat, that it is but 
little used or known. Over Cup Oak. 
Grows almost exclusively in the rich swamps that border our large rivers. 
By no means rare in its native habitations. 
Flowers April. 
fl 21. Acba. 
Lin. 
Q. foliis oblongis, 
pinnatifido - sinuatis, 
subtus pubescentibus, 
lobis oblongis, obtusis, 
integerrimis; calycibus 
fructus pedunculatis, ba- 
si planis; mice ovata. 
Leaves oblong, pin- 
natifid, sinuate, pube- 
scent underneath, lobes 
oblong, obtuse, entire; 
calyx of the fruit on 
peduncles, flat at base; 
nut ovate. 
