@. 93) CLASSIFICATION AND DESCRIPTION 177 
17. Pinus inops, Ait. (JERSEY OR SCRUB 
PinE.) Leaves short, 11g to 3 in. long, 
rigid; usually 2, rarely 3, in a short 
sheath. Cones solitary, 2 to 3 in. long, 
ovate-oblong, curved, on a short stalk. 
Scales tipped with a straight, rigid spine. 
A small treé, 15 to 30 ft. high, growing 
wild in sections where the soil is poor and 
sandy; having straggling flexible branches 
with rough, dark 
bark; New Jer- 
sey, south and 
west. Rarely cul- 
tivated. 
P. inops. 
P. pangens. 
ft. high. New Jersey and southwestward, 
18. Pinus ptingens, Michx. f. (TABLE- 
MovurTalIn Ping.) Leaves in twos, some- 
times in threes, stout, short, 114 to 214 in. 
long, crowded, bluish; the sheath short 
(very short on old foliage). Cones 3 in. or 
more long, hanging on for a long time; the 
seales armed with a stont, hooked spine, 
4% in. long. A rather small tree, 20 to 60 
along the mountains. 
19. Pinus sylvéstris, L. (Scorcu Pivz, 
wrongly called Scorcu Fir.) Leaves in twos, 
14% to 2144 in. long, from short, lacerated 
sheaths, twisted, rigid, of a grayish or a 
glaucous-green color. 
P. contérta. 
Cones 2 to 3 in. long, 
ovate-conical, of 
a grayish-brown 
color, ripening 
the second year, 
the seales having 
4-sided,recurved & 
points. A large &, P. sylvéstris. 
and very valuable tree of central Europe. 
Many varieties are in cultivation in this 
country. It forms the Red and Yellow Deal 
so extensively used for lumber in Europe. 
20. Pinus contérta, Dougl. (TwisTED- 
BRANCHED PINE.) Leaves 2 in. long, uu- 
