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阳春鼠刺 |
中文学名:阳春鼠刺 拉丁学名:Itea yangchunensis Jin 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:蔷薇亚纲 目:蔷薇目 科:虎耳草科 属:鼠刺属 |
阳春鼠刺(diān shǔ cì, 学名:Itea yangchunensis Jin)灌木,虎耳草科植物,叶较小,无毛。花常短于叶。果锥状。 [1]
阳春鼠刺形态特征
灌木叶厚革质,长圆形或长圆状椭圆形,长5.5~7厘米,宽1.7~2.5厘米,先端圆形或钝,基部宽楔形,边缘除近基部外具密细锯齿;
平时多少背卷,上面深绿色,下面淡绿色,两面无毛,有明显的腺体,侧脉5对,弧状弯,第三级脉平行且连接或网状;
侧脉和网脉在两面极明显;叶柄粗壮,长6~7毫米,无毛。总状花序腋生,常短于叶,长3~5厘米;花序轴及花轴被短柔毛;花较少数,2~3个簇生,稀单生;萼筒浅杯状;萼片矩圆形,长3毫米。
蒴果锥状,长约6毫米,干时黑色,被疏短柔毛或近无毛。果期11月。 [2]
分类文献
Itea yangchunensis Jin, in Acta phytotax. Sin. 33 (5): 497. 1995.
Shrubs or small trees. Branchlets terete, glabrous. Petiole stout, 6-7 mm, glabrous; leaf blade abaxially pale green, adaxially dark green, oblong or oblong-elliptic, 5.5-7 × 1.7-2.5 cm, thickly leathery, both surfaces glabrous, conspicuously glandular punctate, secondary veins in ca. 5 pairs, arcuate curved, tertiary veins both parallel and reticulate, secondary and reticulate veins prominent on both surfaces, margin ± revolute when dry, densely serrulate except near base, apex rounded or obtuse. Racemes axillary, often longer than leaves, 3-5 cm; rachis and pedicels sparsely puberulous; bracts early deciduous. Flowers few, usually 2- or 3-clustered, rarely solitary. Calyx shallowly cupular; lobes oblong-lanceolate, ca. 3 mm, glabrous. Capsule turning black when dry, conical, ca. 6 mm, sparsely puberulous or subglabrous. Fr. Nov.
- Streamsides. SW Guangdong (Yangchun Xian).
This species is similar to Itea coriacea, but differs in having leaves smaller, shorter than the racemes, with a short, stout petiole and a glandular blade with prominent secondary and reticulate veins and a rounded or obtuse apex.
阳春鼠刺生长环境
主要生长于溪边。[3]
阳春鼠刺分布范围
阳春鼠刺鉴别特征
本种的叶较小,先端圆形或钝,侧脉及网脉极明显,两面有明显的腺体;叶柄短粗;花序明显短于叶与厚叶鼠刺I. coriacea Y. C. Wu 有明显的区别。
参考来源
- ↑ 阳春鼠刺, 植物智, 2020-01-18
- ↑ 《中国植物志》 第35(1)卷 (1995) >> 270页 PDF >> 阳春鼠刺 Itea yangchunensis
- ↑ 阳春鼠刺图片_看图识花_浴花谷花卉网 2012年10月5日 阳春鼠刺,灌木叶厚革质,长圆形或长圆状椭圆形;总状花序腋生,常短于叶,花序轴及花轴被短柔毛,花较少数,簇生,稀单生;蒴果锥状,干时黑色,被疏短柔毛或近...
- ↑ 阳春鼠刺Itea yangchunensis_花卉图片网 2013年11月9日 中文名( Chinese Name ):阳春鼠刺 学名( Scientific Name ): Itea yangchunensis S. Y. Jin 英文名( English Common Name ): 别名( Chinese Common Na...