织梦CMS - 轻松建站从此开始!

花卉图片网

当前位置: 主页 > 乔木 >

黄花落叶松Larix olgensis

时间:2013-07-15 15:50来源:未知 作者:徐晔春 点击:
黄花落叶松,Larix olgensis






中文名(Chinese Name):黄花落叶松
学名(Scientific Name):Larix olgensis Henry
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Larix gmelinii var. olgensis (A. Henry) Ostenf. et Syrach  Larix dahurica f. multilepis Liou et Q. L. Wang
科属(Family & Genus):松科Pinaceae落叶松属
形态特征(Description):乔木,高达30米,胸径达1米;树皮灰色、暗灰色、灰褐色,纵裂成长鳞片状翅离,易剥落,剥落后呈酱紫红; 枝平展或斜展,树冠塔形;当年生长枝淡红褐色或淡褐色,微有光泽,直径1-1.2毫米,密生较长或较短之毛(有时仅在小枝下部明显,向上变为无毛),或有散生长毛或无毛,基部常具长毛,有时仅有疏生短毛,二、三年生枝灰色或暗灰色;短枝深灰色,直径2-3毫米,顶端叶枕间密生淡褐色柔毛;冬芽淡紫褐色,顶芽卵圆形或微成圆锥状,芽鳞膜质,边缘具睫毛,基部芽鳞三角状卵形,先端有长尖头。叶倒披针状条形,长1.5-2.5厘米,宽约1毫米,先端钝或微尖,上面中脉平,稀每边有1-2条气孔线,下面中脉隆起,两边各有2-5条气孔线。球果成熟前淡红紫色或紫红色,熟时淡褐色,或稍带紫色,长卵圆形,种鳞微张开,通常长1.5-2.6厘米,稀达3.2-4.6厘米,径1-2厘米,种鳞16-40枚,背面及上部边缘有或密或疏的细小瘤状突起,间或在近中部杂有短毛,稀近于光滑;中部种鳞广卵形常成四方状,或近方圆形,长0.9-1.2厘米,宽约1厘米,基部稍宽,先端圆或圆截形微凹,干后边缘常反曲;苞鳞暗紫褐色,矩圆状卵形或卵状椭圆形,不露出,长4-7毫米,宽2.5-4毫米,中部稍收缩,先端圆截形或微凹,中肋延长成尾状尖头;种子近倒卵圆形,淡黄白色或白色,具不规则的紫色斑纹,长3-4毫米,径约2毫米,种翅先端钝尖,中部或中下部较宽,种子连翅长约9毫米;子叶5-7枚,针形,长约9毫米;初生叶条形,长1-2厘米,上面中脉平,下面中脉隆起,先端钝。花期5月,球果9-10月成熟。
分布(Distribution):产于我国东北长白山区及老爷岭山区,海拔500-1800米湿润山坡及沼泽地区
用途(Use):边材淡黄色,心材红褐色,纹理直,结构粗,木材略重,硬度中等,比重0.54,有树脂,耐久用。可供建筑、船舰、电杆、帆柱、枕木、车辆、矿柱(坑木)、家具及木纤维木业原料等材用。树干可提树脂,树皮可提栲胶。可作长白山区、老爷岭山区湿润山地的造林树种,也可栽培作庭园树。
引自中国植物志英文版FOC Vol. 4 Page 36
Larix olgensis A. Henry, Gard. Chron., ser. 3. 57: 109. 1915.
黄花落叶松 huang hua luo ye song  | Pinaceae  | Larix
Larix dahurica Turczaninow ex Trautvetter f. multilepis Liou & Q. L. Wang; L. gmelinii (Ruprecht) Kuzeneva var. olgensis (A. Henry) Ostenfeld & Syrach-Larsen; L. olgensis var. changpaiensis Y. C. Yang & Y. L. Chou f. intermedia (Takenouchi) Yang & Nie; L. olgensis var. changpaiensis f. pubibasis Yang & Nie; L. olgensis f. viridis (E. H. Wilson) Nakai.
Trees to 30 m tall; trunk to 1 m d.b.h.; bark gray to gray-brown, longitudinally fissured, flaking, scaly; crown pyramidal; long branchlets reddish or light brown, initially slightly shining, aging gray or dark gray, 1-1.2 mm in diam., pubescent or glabrous; short branchlets 2-3 mm in diam., densely brownish hairy at apex; winter buds purplish brown, ovoid or conical-ovoid. Leaves 1.5-2.5 cm × ca. 1 mm, keeled abaxially. Seed cones reddish purple or violet, maturing light brown and sometimes tinged with purple, ovoid-oblong. Seed scales 14-16, ovate-quadrangular or quadrangular-orbicular, usually slightly recurved distally when dry, 0.9-1.2 × ca. 1 cm, ± tuberculate, sometimes pubescent, rarely nearly glabrous abaxially, base slightly wider, apex truncate or emarginate, obtuse. Bracts included, dark purple-brown, oblong-ovate, 4-7 mm. Seeds light yellow or white, irregularly purple spotted, subobovoid, ca. 9 mm including wing. Pollination May, seed maturity Sep-Oct.
Mountains, moist slopes, swamps; 500-1800 m. Jilin, E Liaoning [Korea, E Russia]
The timber is used for construction, poles, vehicles, pit props, railway sleepers, and wood fiber. The trunk is used for producing resin and the bark for tannins. The species is also cultivated for afforestation and as an ornamental.
(责任编辑:徐晔春)
织梦二维码生成器
顶一下
(1)
100%
踩一下
(0)
0%
------分隔线----------------------------
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
用户名: 验证码:点击我更换图片
栏目列表
推荐内容