绒毛山素馨属(学名:Huodendron tomentosum),为安息香缩合科山茉莉属下的一个植物种。

植物信息

种中文名:绒毛山茉莉

种拉丁名:Huodendron tomentosum Y. C. Tang ex S. M. Hwang

科拉丁名:Styracaceae

属拉丁名:Huodendron

中国植物志:60(2):128

英文植物志:15:265

外观形态

绒毛山茉莉(Huodendron tomentosum Y. C. Tang ex S. M. Hwang in Acta Phytotax. sin. 18 (2): 165. t. 4. 1980. ),乔木,高达20米,胸径约26厘米;树皮灰褐色,干时棕红色,光滑;冬芽卵状披针形,密被浅棕色绒毛。

绒毛山茉莉叶互生,近革质,长圆形、长圆状披针形或倒卵状长圆形,长5-9.5厘米,宽1.5-3.5厘米,顶端渐尖或钝渐尖,基部楔形,边全缘,干时稍背卷,上面光滑无毛,下面密被灰色绒毛,侧脉每边7-9条,中脉上面凹入,下面凸起,网脉纤细而密,明显;叶柄长1.5-2厘米,密被灰色绒毛,上面具沟槽。

花序特征

绒毛山茉莉圆锥花序生于小枝顶端,长4-8厘米,宽3-5厘米,密被灰色绒毛;花淡黄色,长约7毫米;花梗长5-8毫米;小苞片钻形,长约2毫米,早落;花萼杯状,高约2毫米,萼齿5,卵状三角形,较萼管短,密被黄色星状绒毛;花瓣长圆形,长约6毫米,宽约2毫米,顶端短尖,花蕾时作覆瓦状排列,花后反卷,两面均密被淡黄色细绒毛。

绒毛山茉莉雄蕊10枚,花丝扁平,下部被长柔毛,花药披针形,长约3毫米,药隔宽扁,顶端3裂,中间的裂片较两侧的为短;花柱长约6毫米,被柔毛,顶端浅3裂,子房卵形,4室,每室有胚珠多颗,被长柔毛。花期5-7月。

生境分布

绒毛山茉莉产于中国的云南省西南部。生于海拔1900米林中。绒毛山茉莉模式标本采自云南省瑞丽附近。

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参考资料

植物通.www.zhiwutong.com.2010-09-10