水红木Viburnum cylindricum

水红木Viburnum cylindricum

水红木Viburnum cylindricum

中文名(Chinese Name):水红木
学名(Scientific Name):Viburnum cylindricum Buch.-Ham. ex D. Don
英文名(English Common Name):
别名(Chinese Common Name):水红树
异名(Synonym):Viburnum crassifolium Rehder;Viburnum cylindricum var. crassifolium (Rehder) C. K. Schneid.
科属(Family & Genus):忍冬科(Caprifoliaceae)荚蒾属
形态特征(Description):常绿灌木或小乔木,高达8 (-15) 米;枝带红色或灰褐色,散生小皮孔,小枝无毛或初时被簇状短毛。冬芽有1对鳞片。叶革质,椭圆形至矩圆形或卵状矩圆形,长8-16 (-24) 厘米,顶端渐尖或急渐尖,基部渐狭至圆形,全缘或中上部疏生少数钝或尖的不整齐浅齿,通常无毛,下面散生带红色或黄色微小腺点(有时扁化而类似鳞片),近基部两侧各有1至数个腺体,侧脉3-5 (-18) 对,弧形;叶柄长1-3.5 (-5) 厘米,无毛或被簇状短毛。聚伞花序伞形式,顶圆形,直径4-10 (-18) 厘米,无毛或散生簇状微毛,连同萼和花冠有时被微细鳞腺,总花梗长1-6厘米,第一级辐射枝通常7条,苞片和小苞片早落,花通常生于第三级辐射枝上;萼筒卵圆形或倒圆锥形,长约1.5毫米,有微小腺点,萼齿极小而不显著;花冠白色或有红晕,钟状,长4-6毫米,有微细鳞腺,裂片圆卵形,直立,长约1毫米;雄蕊高出花冠约3毫米,花药紫色,矩圆形,长1-1.8毫米。果实先红色后变蓝黑色,卵圆形,长约5毫米;核卵圆形,扁,长约4毫米;直径3.5-4毫米,有1条浅腹沟和2条浅背沟。花期6-10月,果熟期10-12月。
分布(Distribution):产甘肃、湖北、湖南、广东、广西、四川、贵州、云南及西藏东南部,生于海拔500-3300米的阳坡疏林或灌丛中。
用途(Use):叶、树皮、花和根供药用。树皮和果实可提制栲胶。种子含油35%,可制肥皂;云南民间用以点灯。
引自中国植物志英文版FOC Vol. 19 Page 573, 595, 599
Viburnum cylindricum Buchanan-Hamilton ex D. Don, Prodr. Fl. Nepal. 142. 1825.
水红木 shui hong mu| Adoxaceae  | Viburnum
Viburnum coriaceum Blume; V. crassifolium Rehder; V. cylindricum Buchanan-Hamilton ex D. Don var. crassifolium (Rehder) C. K. Schneider.
Shrubs or small trees, evergreen, to 8(-15) m tall. Bark light brown. Branchlets of current year greenish, glabrous, or initially sparsely stellate-pubescent; branchlets of previous year gray-brownish, terete, glabrous, with sparse, small, rounded lenticels. Winter buds lanceolate-triangular, with a pair of separate scales; scales glabrous or stellate pubescent. Leaves always opposite, not clustered at apices of branchlets; stipules absent; petiole green, robust, 1-3.5(-5) cm, glabrous or stellate-pubescent; leaf blade green when young, elliptic to oblong or ovate-oblong, 8-16(-24) × 3-10 cm, leathery, abaxially usually glabrous, with dispersed reddish or yellow tiny glandular dots (sometimes compressed to appear like lepidote scales), adaxially glabrous, midvein raised abaxially, lateral veins 3-5(-8)-jugate, pinnate, arched, rarely branched, anastomosing near margin, or some ending in teeth, raised abaxially, slightly impressed adaxially, veinlets transverse, conspicuous abaxially, inconspicuous adaxially, not lobed, base gradually angustate to rounded, with 1 to several glands on both sides of midvein near base, margin entire or irregularly shallowly dentate, apex acuminate or acute. Flowers appearing after leaves; inflorescence a compound umbel-like cyme, terminal, 4-10(-18) cm in diam.; rays whorled; first node of inflorescence usually with 7 rays, lax, glabrous or stellate-pubescent, sometimes with tiny glands, without large sterile radiant flowers; peduncles 1-6 cm; bracts usually caducous, leaflike, whitish green, linear-lanceolate, ca. 3 × < 1 mm, glabrous; bracteoles scalelike. Flowers usually on rays of 3rd order, not fragrant, sessile or shortly pedicellate. Calyx greenish; tube ovoid-orbicular or obconical, ca. 1.5 mm, sometimes with tiny glandular dots; lobes very small and inconspicuous, glabrous, apex rounded. Corolla white or reddish, campanulate, 4-6 mm, with tiny lepidote glands; tube 3-5 mm; lobes erect, orbicular-ovate, ca. 1 mm, apex rounded, margin entire. Stamens longer than corolla, inserted near base of corolla; filaments 3-4 mm; anthers purple, oblong, 1-1.8 mm. Styles exceeding calyx lobes; stigmas capitate. Fruit initially turning red, maturing blue-black, ovoid, ca. 5 mm, base rounded, apex rounded, glabrous; pyrenes compressed ovoid, ca. 4 × 3.5-4 mm, with 2 shallow dorsal grooves and 1 shallow ventral groove, apex rounded. Fl. Jun-Jul, fr. Aug-Oct. 2n = 18.
Sparse forests, scrub; 500-3300 m. Gansu (Wenxian), N Guangdong, Guangxi, Guizhou, W Hubei, W Hunan, Sichuan, SE Xizang, Yunnan [Bhutan, India, Indonesia, N Myanmar, Nepal, Pakistan, Thailand, Vietnam].
(责任编辑:徐晔春)

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