2. P. resino'sa, ^it. Leaves from long sheaths, semi-cylindrical;
scales of the cones pointless.
Resinous Pinus. Red Pine.
IHink 70 - 80 feet in height and of a nearly uniform diameter for two-thirds of its length ;
the bark reddish. Leaves 5-6 inches long, dark green. Cones about 2 inches long, some-
times in clusters.
New England to Pennsylvania, north and west.
Obs. This tree is known in New England as the Norway Pine, a
name which is applied in Europe to quite another tree. The wood is
valuable, though less so than that of the Pitch Pine.
3. P. mi'tis, Mx. Leaves in pairs, often in threes, slender, channelled,
from long^ sheaths ; cones ovoid-conical, small ; scales with a small, weak
prickle.
Soft Pinus. Yellow Pine (of the North).
stem 40 - 60 or 80 feet high, and 1-2 feet or more in diameter, with the bark in rather
broad flat scales. Leaves Z-b inches long, slender, linear, dark green, mostly in pairs
(sometimes in threes, on young branches). Strobiles (or cones) 2-3 inches long.
New England to Wisconsin and south ; abundant in New Jersey.
06s. This tree affords valuable lumber, — ^and is much employed in
the construction of houses, and merchant vessels ; but is much inferior
in qualits to the Yellow Pine of the South.
ff Leaves in threes^ (rarely sometimes in fours.)

4. P. rig'ida, Miller, Leaves rigid, from very short sheaths; cones
ovoid-conical or ovate, often clustered ; scales with a short- and stout
recurved prickle.
Rigid Pinus. Pitch Pine.
IVunA; 30-60 feet high, rugged and knotty from the bases of fallen branches. Leaves
8-5 inches long, dark green, flattish. Qmes 1 - 3>^ inches long.
Sterile soil : New England, southward.
