台湾鼠刺查看源代码讨论查看历史
| 台湾鼠刺 |
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中文学名:台湾鼠刺 拉丁学名:Itea oldhamii Schneid. 别 称:奥氏鼠刺、老鼠刺、鼠刺 界:植物界 门:被子植物门 纲:木兰纲 目:蔷薇目 科:茶藨子科 属:鼠刺属 种:台湾鼠刺 分布区域:我国台湾 |
台湾鼠刺(tái wān shǔ cì，学名 Itea oldhamii C. K. Schneiker，异名：Itea formosana Itea chinensis var. subserrata )为鼠刺属下常绿灌木，我国台湾特有物种。生于海拔300～500米的山谷中。 [1]
台湾鼠刺形态特征
常绿灌木，稀小乔木；小枝粗壮，幼枝被疏短柔毛，老枝无毛。
叶厚革质，卵形至卵状长椭圆形，长6～9 (12) 厘米，宽3.5～5.5厘米，先端急尖或渐尖，稀钝，基部钝或楔形，边缘具每边2～10个粗齿或稀全缘；
侧脉5～7对，弧状上升，中脉上面下陷，下面突起，有不明显的网状脉，两面无毛；叶柄长5～8毫米，无毛。总状花序腋生或顶生，长3～5厘米，被柔毛；苞片长1～2毫米；
花梗长2～4毫米，开展，被短柔毛；花多数，单生或2个簇生；萼筒浅杯状；萼片三角状披针形，长约为花瓣之半；花瓣白色，披针形，长2.5毫米，宽约1毫米；雄蕊略长于花瓣；花丝有毛；花药椭圆状球形；
子房上位，被短柔毛。蒴果锥状，长5～6毫米，微被毛，基部有宿存萼片。[2]
分类文献
Itea oldhamii Schneid., Ill. Handb. Laubh. 1: 396. 1906; H. T. Chang, in Acta Phytotax. Sin. 2 (2): 121. pl. 17. fig. 5. 1953; Shimizu et Kao in Taiwania 8: 140. 1962; Li, Woody Fl. Taiwan 249. fig. 91. 1963; 刘业径, 台湾木本植物志241. 图51. 1972; Shimizu, Tatemi, Fl. Taiwan 3: 40. Pl. 47. 1977; ——I. chinensis Hook. et Arn. var. subserrata Maxim. in Mel. Biol. 12: 459. 1886. ——I. formosana Li in Journ.Wash. Acad. Sci. 42: 44. 1952; 刘棠瑞, 台湾木本植物图志 (上), 412.图349. 1960.——I. Chinensis auct. non Hook. et Arn.: Hemsl. in Trans. Asiat. Soc. Jap. 24. Suppl.: 41. 1896.
Itea chinensis Hooker & Arnott var. subserrata Maximowicz; I. formosana H. L. Li.
Shrubs or rarely small trees, evergreen. Branchlets stout, young ones sparsely pilose, old ones glabrous. Petiole 5-10 mm, glabrous; leaf blade ovate to ovate-elliptic, 6-9 × 3.5-5.5 cm, thickly leathery, both surfaces glabrous, midvein raised abaxially, impressed adaxially, secondary veins in 5-7 pairs, arcuate ascending, reticulate veins prominent, base obtuse or cuneate, margin remotely 2-10-dentate on both sides, apex shortly acute or acuminate, rarely obtuse. Racemes axillary or terminal, 3-5 cm, often pubescent; bracts 1-2 mm. Flowers numerous, solitary or 2-clustered; pedicel spreading, 2-4 mm, puberulous. Calyx shallowly cupular; lobes triangular-lanceolate, ca. 1/2 as long as petals. Petals white, lanceolate, ca. 2.5 × 1 mm. Stamens longer than petals; filaments hairy; anthers ellipsoid-globose. Ovary superior, puberulous. Capsule conical, 5-6 mm, slightly pubescent, with persistent sepals at base. 2n = 22.
Thickets, valleys; 300-500 m. N Taiwan (Taibei) [Japan (Ryukyu Islands)].
The wood is hard and slightly peach-colored and is used for making furniture.
台湾鼠刺生长环境
生长于海拔300～500米的山谷中。[3]