Forest trees of the Pacific slope . adhere to thebranclies for a great manyyears, some of the closed ones finally opening and Iil)erating their seed. The FOREST TREES OF THE PACIFIC SLOPE. 51 wonderful reproductive power of this species on areas over which its stand hasbeen lulled by fire is dependent upon the ability of the closed cones to endurea tire which kills the tree without injuring its seed. After fire, the conesopen and shed their seeds on the bared ground and a new growth springs remarkable adaptation insuring this tree against extinction by fire isits habit of producing
Forest trees of the Pacific slope . adhere to thebranclies for a great manyyears, some of the closed ones finally opening and Iil)erating their seed. The FOREST TREES OF THE PACIFIC SLOPE. 51 wonderful reproductive power of this species on areas over which its stand hasbeen lulled by fire is dependent upon the ability of the closed cones to endurea tire which kills the tree without injuring its seed. After fire, the conesopen and shed their seeds on the bared ground and a new growth springs remarkable adaptation insuring this tree against extinction by fire isits habit of producing fertile cones at the early age of from 7 to 10 years. When the cones are fully ripe the scale tips are shiny and a clay-brown color,their inner portion being a bright purple-brown. The seeds (fig. 15, a) are deepreddish brown, with black-brown spots. Seed leaves, commonly 5, biit some-times 4. Wood varies in grain; fine in dense stands, moderately coarse in theopen; commercially important. Wood of the Pacific tree is a pale reddish. ^f n IiVV/.i
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforestsandforestry
