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异叶点地梅 |
中文名:异叶点地梅 拉丁学名:Androsace runcinata Hand.-Mazz. 界:植物界 门:被子植物门 Angiospermae 纲:双子叶植物纲 Dicotyledoneae 亚 纲:合瓣花亚纲 Sympetalae 目:报春花目 Primulales 科:报春花科 Primulaceae 族:报春花族 Trib. Primuleae 属:点地梅属 Androsace 组:厚叶组 |
异叶点地梅(yì yè diǎn dì méi),学名 Androsace runcinata Hand.-Mazz.,异名:Androsace diversifolia ,多年生草本。主根短,具少数紫褐色支根和须根。叶椭圆形至椭圆状倒卵形,长3-13厘米,宽2-5厘米,先端钝圆,基部楔形至近圆形,边缘极狭内卷,具不规则的波状浅圆齿,近基部有时羽状深裂。 [1]
异叶点地梅形态特征
多年生草本。主根短,具少数紫褐色支根和须根。叶椭圆形至椭圆状倒卵形,长3-13厘米,宽2-5厘米,先端钝圆,基部楔形至近圆形,边缘极狭内卷,具不规则的波状浅圆齿;
近基部有时羽状深裂,坚纸质,上面深绿色,疏被小刚毛,下面灰绿色,沿中肋被小刚毛,其余部分被极稀疏的小刚毛或近于无毛,叶脉不明显;
叶柄扁平,近于无毛,具窄翅,长通常为叶片的1/2-1/3 (1/5)。花葶1-3枚,高10-20厘米,被稀疏多细胞长柔毛;伞形花序无毛,8-12花;苞片线状钻形,长3-6毫米;
花梗细弱,长5-20毫米;花萼倒圆锥形,长4.5-5.5毫米,微具5棱,分裂约达全长的1/3,裂片三角形,先端稍厚;花冠淡紫红色,直径约5毫米,筒部长2.5毫米,裂片长圆形,宽约2毫米,全缘或先端微凹。蒴果小,短于萼筒。花期4-5月。
Herbs perennial. Leaves basal; petiole to 1/2 as long as leaf blade, glabrescent, narrowly winged; leaf blade elliptic to elliptic-obovate, 3--13 X 2--5 cm, papery, abaxially very sparsely minutely bristly or glabrescent except for midvein, adaxially sparsely minutely bristly, base attenuate to rounded, margin undulate-crenate on distal 1/2, pinnately incised near base, apex subrounded; veins inconspicuous.
Scapes erect, 10--20 cm, sparsely villous; umbels 8--12-flowered; bracts linear-subulate, 3--6 mm. Pedicel 0.5--2 cm, glabrous. Calyx 4.5--5.5 mm, parted to 1/3; lobes triangular; veins 5, obscure. Corolla pale purple, ca. 5 mm in diam.; tube ca. 2.5 mm; lobes oblong, ca. 1.8 mm wide, margin entire or apex slightly emarginate. Fl. Apr-May.
- On limestone rocks in mixed forests, shaded places on limestone hills; 1200--1500 m. Guizhou, W Hunan, SE Yunnan.
分类文献
Androsace runcinata Hand. -Mazz. in Not. Roy. Bot. Gard. Edinb. 16: 161. 1931; C. M. Hu et Y. C. Yang in Act. Phytotax. Sin. 24: 220. 1986.——Androsace diversifolia C. Y. Wu, 云南热带亚热带植物区系报告1: 33. 图版8, 1965.
异叶点地梅生长环境
生长于海拔1200-1500米混交林下和灌丛中。
异叶点地梅分布范围
产于云南东南部、贵州和湖南西部(龙山)。模式标本采自贵州龙里。