32^ THE CULTIVATED EVERGREENS 



from 3-8, bluish-green or green, 5-12 inches long: cone conic-ovoid to long- 

 conic, 2-12 inches long; apophyses depressed -pyramidal to nearly flat, with 

 a short deciduous prickle. Mexico to Guatemala. — Introduced in 1809 to 

 Great Britain; not known to be in cultivation in this country and prob- 

 ably hardy only south. Var. Hartwegii, Engelm. (P. Hartwegii, Lindl.), 

 a form of the higher mountains of central Mexico with short leaves and 

 small nearly black cones, is probably the hardiest of the varieties. 



P. Teocote, Sclilecht. Tree to 90 feet tall; branchlets bloomy; winter- 

 buds cylindric-ovoid, resinous, with the scales free at the tips: leaves rigid, 

 3, 4-8 inches long: cones cylindric-ovoid, about 2J/2 inches long, dull brown 

 or slightly shining, soon falling; apophyses slightly raised, transversely 

 ridged with ashy-gray usually depressed umbo with a minute often obsolete 

 prickle. Mexico. — Introduced to Great Britain in 1839 by Hartweg. 



30. P. Jeffrey!, Balfour (P. ponderosa var. Jeffreyi, Vasey). Jeffrey P. 

 Tree to 120 or occasionally to 180 feet tall, with short, spreading, or often 

 pendulous branches, the uppermost ascending, forming an open pyramidal 

 and sometimes narrow spire-like head; bark cinnamon-red, broken into large 

 irregular plates; young branchlets glaucous, fragrant when broken; winter- 

 buds oblong-ovoid, not resinous: leaves stout, acute, pale bluish-green, 

 5-8 inches long: cones conic-ovoid, light brown, 6-12 inches long; apophysis 

 depressed, keeled; umbo elongated into a slender recurved spine; seed about 

 }/2 inch long. Oregon to California. — Introduced to Great Britain in 1853 

 by Jeffrey. Hardy in sheltered positions as far north as Massachusetts. A 

 distinct and ornamental pine of symmetrical habit when young, remarkable 

 for its long leaves, longer than in any other of the hardier species. 



31. P. echinata, Mill. (P. mitis, Miclrx.). Shortleaf P. (Spruce P. 

 Yellow P.). Tree to 100 or 120 feet tall, with slender, often pendulous 

 branches in regular whorls; bark broken into large irregular plates covered 

 with small, appressed, light cinnamon-red scales; winter-buds oblong-ovoid, 

 brown: leaves 2, slender, acute, dark bluish-green, sometimes in 3's, 3-5 

 inches long: cones short-stalked or almost sessile, conic-oblong, dull brown, 

 13^-2 inches long; apophysis flattened; umbo little elevated, with short, 

 straight or curved, slender prickle; seeds ^-^ inch long. Long Island to 

 Florida, Illinois, and Texas. — Introduced to Great Britain in 1739. Hardy 

 as far north as Massachusetts. A handsome tree with broad ovoid head. 



32. P. glabra, Walt. Cedar P. Pyramidal tree to 100 feet tall; bark of 

 young trees and the upper part of old trunks smooth, pale gray, the lower 

 part shallowly fissured; branchlets slender, light red tinged purplish, finally 

 dark reddish-brown; winter-buds conic-cylindric, brown, resinous scales, 

 with pale, fimbriate, interlaced margin: leaves 2, soft and slender, 13^-3 inches 

 long, marked with numerous rows of stomata: cone reflexed, on short stout 



