Tin Trees of Texas :7 



cylindric, '' to -V long. The scales are armed with a straight 

 or somewhat curved stout spine. 



Southern \ew Jersey to Florida, Louisiana, and Texas and 

 in the ^Mississippi Valley to Arkansas and Oklahoma. In 

 Texas, it extends to the valley of the Colorado. 



The loblolly pine is perhaps the most aggressive of all the 

 pines of our area. It is known in many localities as "old-field 

 pine," because of its ability to take possession of, and reforest 

 old fields where corn and tobacco once grew. It will in all 

 probability be with us long after the longleaf has disap- 

 peared. 



The wood is not of as good quality as the longleaf pine, 

 bi'in.ir rather weak, coarse grained and brittle. It is employed 

 in the manufacture of doors and different kinds of finish. 



4. Pinus edulis Eng. Rocky Mountain Nut Pine. Pinion 

 Xut I 'inc. Pinion Pine. 



A small tree which may reach a height of 30-40 and diam- 

 eter oi! 2 ] - : , but is usually much smaller. The trunk is fre- 

 quently divided almost to the ground. Leaves dark green, 

 stout. :! .i'-li// long, sharp pointed and borne in clusters of 

 two or three without a sheath. Cones nearly globose, the 

 scales unarmed. The seed is %' long, nearly cyliiidric and 

 contains a sweet, resinous endosperm. 



Southwestern "\Vyoming. Colorado, Utah, western. Texas to 

 Arizona. In Texas, it is confined to the mountains of the 

 western portion of the state. 



Tlie trees of our area are too small to be of much use for 

 timber. The chief product of value is the nut, which is of 

 some commercial importance. 



5. Pinus ponderosa Dougl. Bull Pine. Yellow Pine. 

 Rockv Mountain Yellow Pine. 



A tree reaching a maximum height of 100-200 and trunk 

 diameter of 4-6, usually about two-thirds the above dimen- 

 sions, with very thick, reddish-brown, deeply furrowed bark. 

 Leaves in :>'s, five to ten inches long. Cones reddish-brown, 

 oval v.hen open, narrowly ovate when closed; scales armed 

 with <\ stout recurved prickle; seeds dark brown ovate, flat- 

 tened ;;t the apex 3 to 4 lines long, winged, the wing % to 1 

 inch long, widest above the middle. 



