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Abies (Abies), Sonko 1 genus, evergreen tree, trunk-side straight. The genus of about 50 species in northern Asia, Europe, North America, Central America and Africa, the alpine zone. China has 19 kinds of 3 variants. Located in the northeast, north, northwest, southwest and Zhejiang provinces and regions of Taiwan mountain areas, often consisting of pure forest large area, so that after the development and utilization of forest resources, some species are the main species of forest regeneration. Mostly strong shade-hardy species, often born in the cool moist climate, more rainfall mountain areas. The introduction of one kind of another cultivation. Whorled branches, twigs opposite, dilute whorled, base with persistent bud scales, leaving the branches after the leaves fall off the suckers round or nearly round-shaped leaf scars, pulvinus obvious, often with light between them trough; winter buds nearly spherical, oval or conical, often with resin, thin resin-free, the top branches of the buds are arranged in a plane three. Leaves spirally borne, radiation stretch or twist fitted to the base of the two columns, or branches below the leaves fitted to two columns splayed on top of the leaf, for straight or backward gas inflection; leaf strip, flat, straight or curved, spur or obtuse apex, or notch or two-lobed, slightly with a short handle, handle end slightly swollen veins in the above concave, thin and slightly elevated cross-section near the diamond, nonporous lines or vent line, following the veins bulge, Each side has a porosity zone; leaves within a two (dilute 4-12) resin ducts, located on both sides of the bundle sheath, or near the ends of the lower skin cells below, in raw or raw edges, thin near the raw mesophyll parenchyma cells located on the skin beneath the lower ends of the past. Hermaphrodite, Flowers solitary and axillary branches last year; the male cones when young oblong or oblong: After a spike-like cylindrical shape, sagging, there are stems, stamens many, spirally students, anther 2, drug chamber transverse, anther usually two forked or two-lobed apex, thin rounded or irregular two-lobed, pollen airbag; female cones erect, short cylindrical, have stems or almost sessile, with numerous spiral the students of cone scales and bud scales, bud scales greater than cone scales, cone scales abdomen (upper) surface base with two ovules. Cones when mature, upright, cylindrical ovate to short cylindrical, with short stalk or almost sessile; seed scales woody, tightly packed, often kidney-shaped or fan-shaped quadrilateral, the upper generally thicker edge of the inner song, base jaws like, ventral 2 seed, the base of the back of a combination of care and health of bud scales; bracts exposed, slightly exposed or not exposed, apex often spur (rare acuminate) tip, exposed parts for straight, splay or inflection; seeds distally with large long membranous wings; seed wing slightly shorter than the kinds of scales, the lower edge of the wrapping seed, easy detachment; after mature seed cone scales and seeds together in the off-axis from the persistent; cotyledons 3-12 (mostly 4-8) pieces, unearthed during germination.