鳞叶点地梅
鳞叶点地梅 |
中文名:鳞叶点地梅 拉丁学名:Androsace squarrosula Maxim. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:合瓣花亚纲 目:报春花目 科:报春花科 族:报春花族 属:点地梅属 组:高山组 |
鳞叶点地梅(lín yè diǎn dì méi),学名:Androsace squarrosula Maxim. ,是报春花科点地梅属植物。 [1]
目录
鳞叶点地梅形态特征
多年生草本。主根细长,具少数支根。地上部分由多数根出条组成疏丛;根出条深褐色,下部节间长5-10毫米,节上有枯叶丛;上部节间短或叶丛叠生其上,形成长1-1.5厘米的柱状体。
莲座状叶丛直径3-4.5毫米;叶呈不明显的两型,外层叶卵形至阔卵圆形,长2-3.5毫米,宽1.5-2毫米,先端锐尖,稍增厚,向外反折;
内层叶披针形,长3-5毫米,宽0.75-1毫米,无毛或具稀疏缘毛,先端灰白色,带软骨质。花葶通常极短,藏于叶丛中,很少长达1厘米;苞片2枚,披针形或阔披针形,长约2毫米;
花单生,近于无梗;花萼钟状,长约2.5毫米,分裂近达中部,裂片卵状椭圆形,先端稍钝,边缘具缘毛;花冠白色,直径6-7毫米,筒部略高出花萼,裂片倒卵状长圆形。花期5-6月。
Herbs perennial, laxly cespitose. Shoots dark brown, glabrous, internodes 5--10 mm proximally, shorter or without intervals between rosettes distally. Leaf rosettes 3--4.5 mm in diam. Leaves dimorphic, sessile. Outer leaves ovate to broadly ovate, 2--3.5 X 1.5--2 mm, glabrous, apex acute and ± thickened, recurved from middle. Inner leaves lanceolate, 3--5 X 0.8--1 mm, often whitish, subcartilaginous, glabrous or sparsely ciliate, apex acute.
Scapes concealed by leaves, rarely to 1 cm; bracts 2, lanceolate to broadly lanceolate, ca. 2 mm. Flowers solitary, subsessile. Calyx ca. 2.5 mm, parted to nearly middle; lobes ovate-elliptic, ciliate, apex obtuse. Corolla white, 6--7 mm in diam.; lobes obovate-oblong, apex rounded. Fl. May-Jun.
- Dry valleys, mountain slopes; 3000--3300 m. SW Xinjiang (N flank of Kunlun).
分类文献
Androsace squarrosula Maxim. in Bull. Acad. Sc. St. Petersb. 32: 504. 1888; R. Knuth in Engl. Pflanzenr. 22 (IV-237): 202. 1905; C. M. Hu et Y. C. Yang in Act. Phytotax. Sin. 24: 230. 1986.
鳞叶点地梅生长环境
生长于海拔3000-3300米的河谷山坡。