栏目

叶萼龙胆Gentiana phyllocalyx C. B. Clarke

叶萼龙胆Gentiana phyllocalyx C. B. Clarke

别名:冈嘎琼;冈嘎琼曼巴;

科名:龙胆科 Gentianaceae

属名:龙胆属 Gentiana

《中国植物志》第62卷137页
  93. 叶萼龙胆 图版21: 7-9
  Gentiana phyllocalyx C. B. Clarke in Hook. f. Fl. Brit. Ind. 4: 116. 1883; Forbes et Hemsl. in Journ. Linn Soc. Bot. 26: 131. 1890; Kusnez. in Acta Hort. Petrop. 15: 288. 1898: Forrest in Not. Bot. Gard. Edinb. 4: 74. 1907: W. W. Smith et G. H. Cave in Rec. Bot. Surv. Ind. 4: 223. 1911; Diels in Not. Bot. Gard. Edinb. 7: 195. 1912; Levl. Cat, Pl. Yunnan 114. 1916; Marq. in Journ. Linn. Soc. Bot. 48: 205. 1929; H. Smith in Hand. -Mazz. Symb. Sin. 7: 978. 1936: D. Wilkie, Gentians 100. f. 55. 1936: Marq. in Kew Bull. 1937: 185. 1937: C. E. C. Fisch. ibid. 1940: 269. 1941; S. Nilsson in Grana Palyn, 7(1): 101. 1967;中国高等植物图鉴3: 388. 图4729. 1974; Hara, Chater et Williams, Enum. Fl. Pl. Nepal 3: 93. 1982.
  多年生草本,高3-12厘米,具长根茎。须根少数,细瘦。枝稀疏丛生或单生,直立,黄绿色,光滑,基部被黑褐色枯老残叶。叶大部分基生,密集呈莲座状,茎生叶2-3对,全部叶倒卵形或倒卵圆形,长6-26毫米,宽4-16毫米,先端钝圆、微凹,基部渐狭,边缘平滑,叶脉1-3条,在两面均明显,中脉在下面突起。花单生枝顶,稀2-3朵簇生;无花梗;花萼小,完全藏于最上部1对茎生叶中,膜质,黄绿色,萼筒宽筒形,长3.5-4.5毫米,裂片小,不整齐,披针形或线状椭圆形,长3-4毫米,先端钝,边缘平滑,脉不明显,弯缺窄,楔形;花冠蓝色,有深蓝色条纹,筒状钟形,长3-4.7厘米,裂片卵形或卵圆形,长3-4毫米,先端钝圆,全缘或边缘啮蚀状,褶整齐,截形或凹形,边缘啮蚀形;雄蕊着生于冠筒下部,整齐,花丝线状钻形,长12-14毫米,花药线形,长2.5-5毫米;子房卵状披针形,长9-12毫米,先端渐尖,基部钝,柄长6-8毫米,花柱线形,长4-5毫米,柱头特别膨大,粘合成盘状,以后分离。蒴果外露或仅先端外露,狭卵状椭圆形,长2.3-2.5厘米,先端渐尖,基部钝,柄长至4.6厘米;种子扁平,褐色,近圆形,直径1.4-1.6毫米,表面具浅蜂窝网状隙,边缘具宽翅。花果期6-10月。
  产西藏东南部、云南西北部。生于山坡草地、石砾山坡、灌丛中、岩石上,海拔3000-5200米。尼泊尔、锡金(模式标本产地)、不丹、缅甸北部也有分布。

《Flora of China》 Vol. 16 (1995)
Gentiana phyllocalyx  C. B. Clarke
叶萼龙胆   ye e long dan
Perennials 3-12 cm tall. Roots few, slender. Stolons to 5 cm. Stems ascending to erect, simple, glabrous. Leaves crowded toward base of stem. Stem leaves 3-5 pairs, widely spaced; petiole 5-8 mm; leaf blade obovate, 0.6-2.6 × 0.4-1.6 cm, base decurrent into petiole, apex rounded and emarginate, veins 1-3. Flowers terminal, solitary, sessile. Calyx pale yellow-green; tube broadly tubular, 3.5-4.5 mm; lobes linear to lanceolate, 3-4 mm, subequal, apex obtuse, veins indistinct. Corolla blue, with dark blue stripes, broadly tubular to tubular-campanulate, 3-4.7 cm; lobes ovate to broadly ovate, 3-4 mm, margin entire or erose, apex obtuse; plicae horizontally truncate, margin erose. Stamens inserted at basal part of corolla tube; filaments 1.2-1.4 cm; anthers linear to ellipsoid, 2.5-5 mm. Style 4-5 mm, linear; stigma lobes suborbicular. Capsules ovoid-ellipsoid, 2.3-2.5 cm; gynophore to 4.6 cm. Seeds compressed, orbicular, 1.4-1.6 mm. Fl. and fr. Jun-Oct.
Grassland and rocky slopes, stony pastures, scrub; 3000-5200 m. SE Xizang, NW Yunnan [Bhutan, India, N Myanmar, Nepal, Sikkim].

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