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丽江云杉Picea likiangensis

时间:2018-06-27 09:26来源:未知 作者:徐晔春 点击:
丽江云杉,Picea likiangensis,丽江杉





中文名(Chinese Name):丽江云杉
学名(Scientific Name):Picea likiangensis (Franch.) Pritz.  
英文名(English Common Name):
别名(Chinese Common Name):丽江杉
异名(Synonym):Abies likiangensis Franch.;Picea yunnanensis Hort. ex Lacass.;Picea likiangensis subsp. bhutanica (Silba) Silba;Picea likiangensis subsp. forrestii (Silba) Silba 
科属(Family & Genus):松科(Pinaceae)云杉属
形态特征(Description):乔木,高达50米,胸径达2.6米;树皮深灰色或暗褐灰色,深裂成不规则的厚块片,枝条平展,树冠塔形,小枝常有疏生短柔毛,稀几无毛,一年生枝淡黄色或淡褐黄色,二、三年生枝灰色或微带黄色; 冬芽圆锥形; 卵状圆锥形、卵状球形或圆球形,有树脂,芽鳞褐色,排列紧密,小枝基部宿存芽鳞的先端不反卷,或微开展。小枝上面之叶近直上伸展或向前伸展,小枝下面及两侧之叶向两侧弯伸,叶棱状条形或扁四棱形,直或微弯,长0.6-1.5厘米,宽1-1.5毫米,先端尖或钝尖,横切面菱形或微扁,上(腹)面每边有白色气孔线4-7条,下(背)面每边有1-12条气孔线,稀无气孔线或有3-4条极不完整的气孔线(每条仅有极少的气孔点)。球果卵状矩圆形或圆柱形,成熟前种鳞红褐色或黑紫色,熟时褐色、淡红褐色、紫褐色或黑紫色,长7-12厘米,径3.5-5厘米;中部种鳞斜方状卵形或菱状卵形,长1.5-2.6厘米,宽1-1.7厘米,中部或中下部宽,中上部渐窄或微渐窄,上部成三角形或钝三角形,边缘有细缺齿,稀呈微波状,基部楔形;种子灰褐色,近卵圆形,连同种翅长0.7-1.4厘米,种翅倒卵状椭圆形,淡褐色,有光泽,常具疏生的紫色小斑点。花期4-5月,球果9-10月成熟。
分布(Distribution):产于云南西北部、四川西南部; 在海拔2500-3800米、气候温暖湿润、冬季积雪、酸性山地棕色森林土高山地带,组成单纯林或与其他针叶树组成混交林。
用途(Use):木材坚韧,纹理致密、直,耐久用,易加工,可供建筑、桥梁、舟车、器具、细木加工及木纤维工业原料等用材。材质优良,生长较快,为分布区森林更新及荒山造林树种。
引自中国植物志英文版FOC Vol. 4
Picea likiangensis (Franchet) E. Pritzel, Bot. Jahrb. Syst. 29: 217. 1900.
丽江云杉 li jiang yun shan | Pinaceae  | Picea
Trees to 50 m tall; trunk to 2.5 m d.b.h.; bark dull gray or brown-gray, breaking into thick, irregular plates; crown pyramidal; branchlets initially pale yellow or brownish yellow, finally gray or gray-yellow, often sparsely pubescent, rarely with glandular hairs; winter buds brown, conical, ovoid, or globose, resinous, scales not reflexed, or slightly opening at base of branchlets. Leaves directed forward on upper side of branchlets, spreading on lower side, linear, straight or slightly curved, ± broadly rhombic in cross section or subflattened, 0.6-1.5 cm × 1-1.5 mm, stomatal lines 4-7 along each surface adaxially, 0-4 along each surface abaxially, apex acute or obtuse. Seed cones reddish brown or purple, maturing brown, reddish brown, purplish brown, or dark purple, ovoid-oblong or ovoid-cylindric, 4-12 × 1.7-3.5 cm. Seed scales at middle of cones rhombic-ovate, 1.5-2.6 × 1-1.7 cm, base cuneate, margin denticulate or undulate, apical part narrowed into a triangular or obtusely triangular point. Seeds gray-brown, subovoid, 0.7-1.4 cm including wing; wing pale brown, lustrous, usually with purplish spots, obovate-oblong. Pollination Apr-May, seed maturity Sep-Oct.
Mountains, ravines, river basins; 2500-4100 m. S Qinghai, S and W Sichuan, E Xizang, NW Yunnan [Bhutan]
(责任编辑:徐晔春)
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