G. 93] 



CLASSIFICATION AND DESCRIPTION 



177 



17. Pinus inops, Ait. (JERSEY OR SCRUB 

 PINE.) Leaves short, 1% 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 tree, 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. Barely cul- 

 tivated. 



P. inops. 



P. pfingens. 



18. Plnus pung-ens, Michx. f. (TABLE- 

 MOUKTAIN PINE.) Leaves in twos, some- 

 times in threes, stout, short, 1% to 2j 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 

 scales armed with a stout, hooked spine, 

 % in. long. A rather small tree, 20 to 60 



ft. high. New Jersey and southwestward, 

 along the mountains. 



19. Pinus sylv6stris, L. (SCOTCH PINE, 

 wrongly called SCOTCH FIR.) Leaves in twos, 

 \y z to 2} in. long, from short, lacerated 

 sheaths, twisted, rigid, of a grayish or a 

 glaucous-green color. Cones 2 to 3 in. long, 

 ovate-conical, of 

 a grayish-brown 

 color, ripening 

 the second year, 

 the scales having 

 4-sided, recurved 

 points. A large 



P. sylvSstris. 



and very valuable tree of central Europe. 

 Many varieties are in cultivation in this 

 country. It forms the Eed andYellovv Deal 

 so extensively used for lumber in Europe. 



20. Pinus cont6rta, Dougl. (TWISTED- 

 BRANCHED PINE.) Leaves 2 in. long, nu- 



