634 
MONOECIA MONADELPHIA. 
This species is, I believe, universally known along the sea-coast of Caro 
lina and Georgia- as the spruce or short-leaved pine. The name of yellow 
pine is, with us, exclusively applied to the Pinus Palustris. The timber of 
this tree is not valued. Indeed, I know not that I have ever seen it applied 
to any use whatever. This, however, may be caused by the abundance 
which we possess of the very superior Pinus Palustris. 
Grows along the sea-coast of Carolina and Georgia only in the most fer- 
tile soils — becoming there a tree of great magnitude. 
Flowers April. 
3. RiGIDA. 
P. foliis ternis, vagi- 
nis abbreviatis; amen- 
tis masculis erecto-in- 
cumbentibus; slrobilis 
ovatis, sparsis vel ag- 
gregate, squamarum 
aculeis reflexis. 
Sp. pi. 4. p. 498. Pursh, 2 p. 643. Nutt. 2, p. 223. 
Icon. Mich. arb. for. p. 89. 
A large tree, growing sometimes from 70—100 feet in height, and 2—3 
in diameter. Leaves 4 — 6 inches long. Cones generally clustered 2 — 4 
inches long, the scales with acute rigid spines, and closing strongly on each 
other. 
This tree Is not very common in the low country of Carolina, where it 
generally grows intermingled with trees of other kinds not forming forests 
exclusively of pine. The variety with clustered cones is very conspicuous; 
and if it really belongs to this species, appears also to vary in having its 
scales more loosely imbricate. 
Michaux remarks, that on the ridges of the Mountains this pine is some- 
times exclusively found for many miles — that the cones in such situations 
are solitary and the tree small. The timber is inferior to that of several 
other species. 
Flowers April. 
Leaves by threes^ 
the sheaths short; ste- 
rile aments incumbent 
nearly erect; cones o- 
vate, scattered or clus- 
tered, spines of the 
scales reflexed. 
4. Serotina. Mich, 
P. foliis elongatis; a- 
mentis masculis erecto 
incumbentibus; strobilis 
sphaeroideo - ovatis, 
Leaves long, by 
threes; sterile aments 
incumbent nearly erect; 
cones spheroidal-ovate, 
