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毛萼凤仙花Impatiens trichosepala Y. L. Chen

毛萼凤仙花Impatiens trichosepala Y. L. Chen

科名:凤仙花科 Balsaminaceae

属名:凤仙花属 Impatiens

《中国植物志》第47(2)卷153页
  139. 毛萼凤仙花(植物分类学报)图版45: 7-14
  Impatiens trichosepala Y. L. Chen in Acta Phytotax. Sin. 37 (1): 95. fig. 5. 1999.
  一年生矮小草本,高15-25厘米。茎肉质,直立或基部斜升,不分枝,上部被疏或较密黄褐色柔毛,下部长裸露,具多数纤维状根。叶互生,常密集于茎上部,具柄,叶片狭披针形或倒披针形,长3.5-10厘米,宽1-2厘米,顶端渐尖或短尾状针,基部狭楔形,边缘具圆齿状锯齿,齿端具弯小尖头,向基部边缘有2-3对刚毛状腺体,侧脉7-9对,上面深绿色,被贴生短糙毛,下面淡绿色,被黄褐色柔毛或沿脉被短毛;叶柄长1-2.5厘米,被疏或较密的黄褐色柔毛。总花梗单生于上部叶腋,明显短于叶,长2.5-3.5厘米,被疏短柔毛,中部或中上部具苞片;苞片线形或线状披针形,被缘毛。花单生,较大,长4-4.5厘米,黄色,侧生萼片2,卵形或长圆状卵形,长10-12毫米,宽6毫米,顶端短尖,具5脉,背面及边缘具多细胞长毛;旗瓣兜状,圆形,直径12毫米,顶端微凹,中肋背面具明显龙骨状突起,先端具小尖,被疏多细胞柔毛;翼瓣具短柄或近无柄,长达22毫米,宽10-12毫米,2裂,基部裂片近圆形,上部裂片宽斧形,背部具半月形反折的小耳;唇瓣宽漏斗状,长2厘米,被疏短柔毛,口部斜上,宽20毫米,先端尖,基部渐狭成长25毫米内弯的距。花丝线形,长5-6毫米,上端扩大;花药卵圆形,顶端钝。子房纺锤状,长4-5毫米,具短喙尖。未成熟的蒴果线状圆柱形。花期7-9月。
  产广西(大苗山、九万山、天峨)、贵州(榕江)。生于山谷河边或疏林中,或潮湿草丛中,海拔500-700米。

《Flora of China》 Vol. 12 (2007)
Impatiens trichosepala  Y. L. Chen
毛萼凤仙花   mao e feng xian hua
Plants annual, small, 15-25 cm tall. Stem erect or ascending from base, succulent, simple, naked in lower part, with many fibrous roots, sparsely yellow-brown pubescent in upper part. Leaves alternate, often crowded at upper part of stem; petiole 1-2.5 cm, laxly or densely yellow-brown pubescent; leaf blade pale green abaxially, dark green adaxially, narrowly lanceolate or oblanceolate, 3.5-10 × 1-2 cm, with 2 or 3 pairs of setose glands at basal margin, abaxially yellow-brown pubescent or only veins pilose, adaxially adpressed strigose, lateral veins 7-9 pairs, base narrowly cuneate, margin crenate-serrate, teeth curved-mucronulate, apex acuminate or shortly caudate. Inflorescences in upper leaf axils; peduncles conspicuously shorter than leaves, 2.5-3.5 cm, sparsely pilose. Pedicels bracteate at base (but appearing as if at middle); bracts linear or linear-lanceolate, ciliate. Flower solitary, yellow, large, 4-4.5 cm deep. Lateral sepals 2, ovate or oblong-ovate, 1-1.2 cm × ca. 6 mm, with multicellular hairs abaxially and at margin, 5-veined, apex acute. Lower sepal broadly funnelform, ca. 2 cm deep, sparsely pilose, gradually narrowed into an incurved spur ca. 2.5 cm; mouth oblique, ca. 2 cm wide, tip acute. Upper petal cucullate, orbicular, ca. 1.2 cm in diam., sparsely multicellular pubescent, apex emarginate, mucronulate, abaxial midvein conspicuously carinate; lateral united petals shortly clawed or ± clawed, ca. 2.2 × 1-1.2 cm, 2-lobed; basal lobes suborbicular; distal lobes broadly dolabriform; auricle inflexed, lunar. Filaments linear, 5-6 mm, apex dilated; anthers ovoid, apex obtuse. Ovary fusiform, 4-5 mm. Capsule (immature) linear-cylindric. Fl. Jul-Sep.
● Sparse forests in valleys, moist grasslands, riversides; 500-900 m. Guangxi, Guizhou, Yunnan (Funing).

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