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球形点地梅 |
中文名:球形点地梅 界:植物界 门:被子植物门 纲:双子叶植物纲 种:球形点地梅 节间长:3-8毫米 |
球形点地梅(qiú xíng diǎn dì méi),学名 Androsace globifera Duby,多年生草本,植株由多数着生于根出条上的莲座状小叶丛形成疏丛。 [1]
球形点地梅形态特征
根出条深褐色,节间长3-8毫米。莲座状叶丛球形,直径3-6毫米;叶两型,外层叶褐色或深褐色,卵形或长圆状卵形,长约4毫米,微内弯,先端锐尖,近于无毛;
内层叶绿色,较狭窄,常为匙形,先端密被白色绵毛状长毛,边缘被柔毛并杂有短腺毛。花单生或2朵于当年生叶丛中,无苞片或具2枚与花萼近等长的苞片;
花葶长达7毫米;花梗与花葶近等长或稍长;花萼筒状,膜质,长约3.5毫米,分裂达全长的1/3,裂片长圆形或披针形,先端钝,被长柔毛;
花冠白色,直径约6毫米,喉部紫色或棕黄色,筒部较细长,微露出花萼,裂片倒卵形。蒴果陀螺形,长于花萼。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.
球形点地梅生长环境
球形点地梅生长于海拔3600米山坡草地。
球形点地梅分布范围
球形点地梅产于西藏西南部(扎达)。分布于印度、不丹、尼泊尔。
分类文献
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.