鱗葉點地梅
鱗葉點地梅 |
中文名:鱗葉點地梅 拉丁學名:Androsace squarrosula Maxim. 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:合瓣花亞綱 目:報春花目 科:報春花科 族:報春花族 屬:點地梅屬 組:高山組 |
鱗葉點地梅(lín yè diǎn dì méi),學名:Androsace squarrosula Maxim. ,是報春花科點地梅屬植物。 [1]
目錄
鱗葉點地梅形態特徵
多年生草本。主根細長,具少數支根。地上部分由多數根出條組成疏叢;根出條深褐色,下部節間長5-10毫米,節上有枯葉叢;上部節間短或葉叢疊生其上,形成長1-1.5厘米的柱狀體。
蓮座狀葉叢直徑3-4.5毫米;葉呈不明顯的兩型,外層葉卵形至闊卵圓形,長2-3.5毫米,寬1.5-2毫米,先端銳尖,稍增厚,向外反折;
內層葉披針形,長3-5毫米,寬0.75-1毫米,無毛或具稀疏緣毛,先端灰白色,帶軟骨質。花葶通常極短,藏於葉叢中,很少長達1厘米;苞片2枚,披針形或闊披針形,長約2毫米;
花單生,近於無梗;花萼鍾狀,長約2.5毫米,分裂近達中部,裂片卵狀橢圓形,先端稍鈍,邊緣具緣毛;花冠白色,直徑6-7毫米,筒部略高出花萼,裂片倒卵狀長圓形。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).
分類文獻
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.
鱗葉點地梅生長環境
生長於海拔3000-3300米的河谷山坡。