THE CULTIVATED EVERGREENS 



Introduced to Great Britain about 1804. Hardy as far north as Massa- 

 chusetts, but of httle ornamental value. 



39. P. clausa, Vasey (P. inops var. clausa, Engelm.). Sand P. (Spruce 

 P.). Tree to 20, occasionally to 70 feet tall, with slender spreading branches; 

 bark on the branches and on the upper part of the trunk smooth and ashy- 

 gray, on the lower part deeply fissured mto oblong plates covered with red- 

 brown scales; branchlets red-brown; winter-buds oblong, obtuse, not or 

 little resinous: leaves slender and flexible, acute, dark green, 2-3 inches long: 

 cones short-stalked, often oblique at the base, conic-ovoid, dark reddish- 

 brown, 2-33^ inches long, remaining closed for three or four years after 

 ripening and occasionally becoming enveloped by the growing wood of the 

 stem; apophysis depressed-pyramidal, conspicuously keeled; umbo with a 

 short stout spine. Florida and Alabama, near the coast. — Little known in 

 cultivation; hardy only south. 



40. P. virginiana, Mill. (P. inops, Ait.). Scrxjb P. (Jersey P.). Fig. 91. 

 Tree to 40 or sometimes to 100 feet tall, with slender horizontal or pendulous 

 branches in remote and irregular whorls, forming a broad open pyramid or 

 sometimes flat-topped; bark of trunk shaUowly fissured into plate-like scales 



covered with thin, appressed, dark brown scales, 

 smooth on the branches; branclilets usually pale 

 green at first, becoming purple, bloomy; winter- 

 buds oblong, dark brown: leaves stiff, twisted, 

 spreading, acutish, 13^-3 inches long: cones 

 conic -oblong, reddish - brown, 

 1^-23/2 inches long; apophysis 

 little elevated, with a broad 

 depressed -pyramidal umbo 

 ending in a short recurved 

 prickle; seed pale brown, 

 y^ inch long. New York to 

 Georgia, west to Ohio, Indiana, 

 northeastern Mississippi and 

 Alabama. — Introduced to 

 Great Britain before 1739. 

 Hardy as far north as Mas- 

 sachusetts. A tree with slender 

 wide-spreading branches, of 

 little ornamental merit, but 

 valuable for covering dry and 

 barren soil. 



41. P. Banksiana, Lamb. 

 (P. divaricata, Dum.-Cours.). 



92. Pinus Banksiana. 



