滇西北点地梅Androsace delavayi


中文名(Chinese Name):滇西北点地梅
学名(Scientific Name):Androsace delavayi Franch.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Primula przewalskii Derganc
科属(Family & Genus):报春花科Primulaceae点地梅属Androsace
形态特征(Description):多年生草本。根纤细,坚硬,灰褐色至深褐色。地上部分为不规则的垫状体。根出条多数,近直立,紧密排列,下部节间长2-3 (6) 毫米,节上有残存的枯老叶丛;上部节间短或不明显。莲座状叶丛顶生,直径5-8毫米;叶近同型,内层叶阔倒卵形至舌状倒卵形,长2-4毫米,宽1.5-2毫米,边缘和圆形的顶端多少内弯,腹面近于无毛,背面上半部被硬毛,先端具流苏状的缘毛;外层叶少数,早枯,黄褐色,下半部中肋隆起,边缘具缘毛,近顶端有稀疏短硬毛。花1-2 (4) 集生于高1-3厘米的花葶端,有时无花葶,花单生于叶丛中;苞片通常2枚,长圆状披针形,长2-4毫米,常对折成舟状,基部稍突起,背面和边缘被柔毛;花梗短,长1-2毫米,被短柔毛;花萼杯状,长约2.5毫米,裂片卵状长圆形,长约1毫米,先端圆钝,背面被短柔毛,边缘具缘毛;花冠白色或粉红色,直径6-8毫米,裂片倒卵状楔形或阔倒卵形,先端圆形或微凹。蒴果近球形,约与花萼等长。花期6-7月。
分布(Distribution):产于云南西北部,四川西南部和西藏东南部。生于多石砾的山坡和岩石缝中,海拔3000-4500米。分布于锡金、不丹、尼泊尔。
用途(Use):
引自中国植物志英文版:FOC Vol. 15 Page 95
Androsace delavayi Franchet, J. Bot. (Morot). 9: 456. 1895.
滇西北点地梅 dian xi bei dian di mei| Primulaceae  | Androsace
Herbs perennial, forming dense cushions from branched caudex. Leaf rosettes 5--8 mm in diam., superimposed on old leaf rosettes, but sometimes with intervals between rosettes. Leaves obscurely dimorphic, sessile. Outer leaves fewer, yellowish brown, more sparsely ciliate. Inner leaves grayish green, broadly obovate to ligulate-obovate, 2--4 X 1.5--2 mm, abaxially minutely hirtellous on distal 1/2, fimbriate-ciliate near apex, adaxially glabrescent, margin ± incurved, apex rounded. Scapes 1--3 cm, sparsely hirtellous, 1 or 2(--4)-flowered, or sometimes scapes obsolescent with a solitary flower arising from leaf rosette; bracts usually 2, oblong-lanceolate, conduplicate, sparsely hirtellous on proximal part, densely hirtellous on distal part, base slightly gibbous. Pedicel 1--2 mm. Calyx ca. 2.5--3 mm, parted scarcely to middle; lobes ovate-oblong, densely hirtellous, ciliate, apex obtuse to subrounded. Corolla white or pink; lobes broadly obovate, apex rounded to obscurely emarginate. Fl. Jun-Jul.
In rock crevices, gravelly slopes, dry meadows; 3000--4800 m. SW Sichuan, SE Xizang, NW Yunnan [Bhutan, NE India, N Myanmar, Nepal, Sikkim].
 滇西北点地梅Androsace delavayi
(责任编辑:徐晔春)

顶一下[4]

踩一下[2]