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墨西哥落羽杉Taxodium mucronatum

时间:2013-07-15 16:02来源:未知 作者:徐晔春 点击:
墨西哥落羽杉,Taxodium mucronatum,墨西哥落羽松,尖叶落羽杉






中文名(Chinese Name):墨西哥落羽杉
学名(Scientific Name):Taxodium mucronatum Tenore
英文名(English Common Name):Montezuma bald cypress
别名(Chinese Common Name):墨西哥落羽松、尖叶落羽杉
异名(Synonym):Taxodium distichum var. mucronatum (Ten.) A. Henry;Taxodium distichum var. mexicanum (Carrière) Gordon;Taxodium mexicanum Carrière;Cuprespinnata mexicana (Carrière) J. Nelson  
科属(Family & Genus):杉科(Taxodiaceae)落羽杉属
形态特征(Description):半常绿或常绿乔木,在原产地高达50米,胸径可达4米;树干尖削度大,基部膨大;树皮裂成长条片脱落;枝条水平开展,形成宽圆锥形树冠,大树的小枝微下垂;生叶的侧生小枝螺旋状散生,不呈二列。叶条形,扁平,排列紧密,列成二列,呈羽状,通常在一个平面上,长约1厘米,宽1毫米,向上逐渐变短。雄球花卵圆形,近无梗,组成圆锥花序状。球果卵圆形。
分布(Distribution):原产于墨西哥及美国西南部。
用途(Use):可作为温暖地带低湿地区的造林树种和园林树种。
引自中国植物志英文版FOC Vol. 4
Taxodium mucronatum Tenore, Ann. Sci. Nat., Bot., sér. 3. 19: 355. 1853.
墨西哥落羽杉 mo xi ge luo yu shan | Taxodiaceae  | Taxodium
Taxodium distichum (Linnaeus) Richard var. mexicanum (Carriere) Gordon; T. distichum var. mucronatum (Tenore) A. Henry; T. mexicanum Carriere.
Trees deciduous in cooler areas or semievergreen in warmer areas, to 50 m tall; trunk swollen at base, strongly tapered, to 4 m d.b.h.; bark peeling off in long strips; crown broadly conical; main branches spreading horizontally; branchlets pendulous on mature trees, lateral ones spirally arranged. Leaves spirally arranged and scattered on annual branchlets, borne at 25-45° to axis, 0.6-0.7 mm apart, forming an elliptic branchlet outline 4-10 × 0.7-1.4 cm, linear, distally tapered, flat, 7-11 × 0.8-1 mm, soft and thin, midvein 0.15-0.25 mm wide, stomatal bands of 4 or 5 well-separated lines, marginal bands 0.2-0.3 mm wide, apex mucronate. Pollen cones borne in long, slender, lax, spikelike panicles (5-)13-25 cm, almost sessile, ovoid. Seed cones glaucous, ovoid, 1.5-2.5 cm.
Used for afforestation on marshy soils in subtropical areas. Hubei (Wuhan Shi), Jiangsu, Jiangxi, Sichuan, Zhejiang [native to Guatemala, Mexico, S United States]
The wood has similar uses to that of Taxodium distichum.
Used for afforestation on marshy soils in subtropical areas.
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