PINACE^E 19 



15. Pinus radiata D. Don. Monterey Pine. 



Leaves in 3, rarely in 2-leaved clusters, slender, bright rich green, 4 '-6' long, mostly de- 

 ciduous during their third season. Flowers: male in dense spikes, yellow; female clustered, 

 dark purple. Fruit ovoid, pointed at apex, very oblique at base, short-stalked, reflexed, 

 3'-7' long, becoming deep chestnut-brown and lustrous, with scales much thickened and 

 mammillate toward the base on the outer side of the cone, thinner on the inner side and 

 at its apex, and armed with minute thickened incurved or straight prickles, long-per- 

 sistent and often remaining closed on the branches for many years; seeds ellipsoidal, com- 

 pressed, j' long, with a thin brittle rough nearly black shell, their wings light brown, longi- 

 tudinally striped, broadest above the middle, gradually narrowed and oblique at apex, 1' 

 long, f ' wide. 



A tree, usually 40- 60 rarely 100-115 high, with a tall trunk usually l-2 but occa- 

 sionally 4-2 in diameter, spreading branches forming a regular narrow open round-topped 

 head, and slender branchlets 

 light or dark orange color, at 

 first often covered with a glau- 

 cous bloom, ultimately dark 

 red-brown. Bark of the trunk 

 l|'-2' thick, dark red-brown, 

 and deeply divided into broad 

 flat ridges broken on the surface 

 into thick appressed plate-like 

 scales. Wood light, soft, not 

 strong, brittle, close-grained; 

 occasionally used as fuel. 



Distribution. In a narrow 

 belt a few miles wide on the 

 California coast from Pescadero 

 to the shores of San Simeon 

 Bay ; in San Luis Obispo County Fig- 2 1 



near the village of Cambria; on 



the islands of Santa Rosa and Santa Cruz of the Santa Barbara group; and on Guada- 

 loupe Island off the coast of Lower California; most abundant and of its largest size on 

 Point Pinos south of the Bay of Monterey, California. 



Largely planted for the decoration of parks in western and southern Europe, occasionally 

 planted in the southeastern states and in Mexico, Australia, New Zealand, and other re- 

 gions with temperate climates, and more generally in the coast region of the Pacific states 

 from Vancouver Island southward than any other Pine-tree. 



16. Pinus attenuata Lemm. Knob-cone Pine. 



Leaves slender, firm and rigid, pale yellow or bluish green, marked by numerous rows 

 of stomata on their 3 f .ices. 3'-7', usually 4'-5' long. Flowers: male orange-brown; female 

 fascicled, often with se . ral fascicles on the shoot of the year. Fruit elongated, conic, 

 pointed, very oblique at base by the greater development of the scales on the outer side, 

 whorled, short-stalked, strongly reflexed and incurved, 3 '-6' long, becoming light yellow- 

 brown, with thin flat scales rounded at apex, those on the outer side being enlarged into 

 prominent transversely flattened knobs armed with thick flattened incurved spines, those 

 on the inner side of the cone slightly thickened and armed with minute recurved prickles, 

 persistent on the stems and branches for thirty or forty years, sometimes becoming com- 

 pletely imbedded in the bark of old trunks, and usually not opening until the death of the 

 tree; seeds ellipsoidal, compressed, acute at apex, |' long, with a thin oblique shell, their 

 wings broadest at the middle, gradually narrowed to the ends, 1 \' long, f ' wide. 



A tree, usually about 20 high, with a trunk a foot in diameter, and often fruitful when 



