球形點地梅檢視原始碼討論檢視歷史
球形點地梅 |
中文名:球形點地梅 界:植物界 門:被子植物門 綱:雙子葉植物綱 種:球形點地梅 節間長:3-8毫米 |
球形點地梅(qiú xíng diǎn dì méi),學名 Androsace globifera Duby,多年生草本,植株由多數着生於根出條上的蓮座狀小葉叢形成疏叢。 [1]
球形點地梅形態特徵
根出條深褐色,節間長3-8毫米。蓮座狀葉叢球形,直徑3-6毫米;葉兩型,外層葉褐色或深褐色,卵形或長圓狀卵形,長約4毫米,微內彎,先端銳尖,近於無毛;
內層葉綠色,較狹窄,常為匙形,先端密被白色綿毛狀長毛,邊緣被柔毛並雜有短腺毛。花單生或2朵於當年生葉叢中,無苞片或具2枚與花萼近等長的苞片;
花葶長達7毫米;花梗與花葶近等長或稍長;花萼筒狀,膜質,長約3.5毫米,分裂達全長的1/3,裂片長圓形或披針形,先端鈍,被長柔毛;
花冠白色,直徑約6毫米,喉部紫色或棕黃色,筒部較細長,微露出花萼,裂片倒卵形。蒴果陀螺形,長於花萼。花期6-7月。
Herbs perennial, forming small lax mats. Shoots dark brown, internodes 3--8(--10) mm. Leaf rosettes globose, 4--8 mm in diam. Leaves sessile, densely overlapping. Outer leaves brown, elliptic-oblong to subobovate, 2.5--3.5 X 1.5--2 mm, glabrescent or with few long hairs near apex; midvein ± raised abaxially.
Inner leaves spatulate to linear, 4--5 X 0.8--1.5 mm, densely white villous on distal part of both surfaces, apex obtuse to acute. Scapes 2--3 mm, 1- or 2-flowered; bracts oblong, ca. 1 mm. Pedicel 4--10 mm, spreading pubescent. Calyx ca. 3 mm, parted to 1/3; lobes broadly ovate, apex rounded to obtuse. Corolla pinkish, 6--8 mm in diam.; lobes broadly obovate, ca. 3 mm, apex rounded. Fl. Jun-Jul. 2n = 36.
球形點地梅生長環境
球形點地梅生長於海拔3600米山坡草地。
球形點地梅分布範圍
球形點地梅產於西藏西南部(扎達)。分布於印度、不丹、尼泊爾。
分類文獻
Androsace globifera Duby in DC. Prodr. 8: 48. 1844: Hook. f. Fl. Brit. Ind. 3: 500. 1882; R. Kunth in Engl. Pflanzenr. 22 (IV-237): 203. 1905; Hand. -Mazz. in Not. Roy. Bot. Gard. Edinb. 15: 279. 1927. et 16: 163. 1931; S. Gould in Hara et Williams, Enum. Fl. Pl. Nepal 3: 63. 1982.