Forest trees of the Pacific slope . h, scaly trunk trom 3 to 8 inches thick; the small bark scales arerather thick, and squarish. Young twigs, faintly angled, grayish with minutedown, and later becoming reddish. Mature leaves (fig. ) thickish, deepgreen, with exceedingly fine, soft hairs on the top sides, and thickly woollyI)eneath; leaf stems also more or less hairy: margins of leaves with blackish,gland-tipped teeth. Pale blue flowers in rather large, dense clusters from earlyto late summer. ^Mature fruit (fig. ) is wrinkled and black. Wood, palebrown, tinged with red; very thin, whi
Forest trees of the Pacific slope . h, scaly trunk trom 3 to 8 inches thick; the small bark scales arerather thick, and squarish. Young twigs, faintly angled, grayish with minutedown, and later becoming reddish. Mature leaves (fig. ) thickish, deepgreen, with exceedingly fine, soft hairs on the top sides, and thickly woollyI)eneath; leaf stems also more or less hairy: margins of leaves with blackish,gland-tipped teeth. Pale blue flowers in rather large, dense clusters from earlyto late summer. ^Mature fruit (fig. ) is wrinkled and black. Wood, palebrown, tinged with red; very thin, whitish sapwood; fine-grained, dense, hardand heavy. Of no economic use. Longevity.—Not fully determined. Very persistent slow grower, giving evi-dence of being rather long-lived. One tree 2§ inches in diameter showed anage of twenty-seven years. Also called blue blossoms, California lilac. and tick-tree. 410 FOREST TREES OF THE PACIFIC SLOPE. BANGE. Off coast of southern California (Santa Catalinn. Santa Cruz. Santa Rosa Islands).. Fii;. ).—Ciuiuilliiis iirhurviis. OCCURRENCE. High north slopes (Santa Crnz Island) in , gravelly or rocky soil, where it islargest and most frequent as a tree ; smaller on other islands. Silvical habits undeter-mined, as are its requirements of climate, light, its seeding habits, and reproduction. FOREST TREES OF THE PACIFIC SLOPE. 411 Lilac. Ceaiiothus spinosus Nuttall. DISTIXGUISHING CHARACTERISTICS. Lilac has louj? been known as a shrub only, but recently it has been found to reach a tree size of from 12 to 15 feet in height and from 3 to 5 inches in
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