栏目

石核木Litosanthes biflora Bl.

石核木Litosanthes biflora Bl.

科名:茜草科 Rubiaceae

属名:石核木属 Litosanthes

《中国植物志》第71(2)卷108页
  1. 石核木(中国种子植物科属词典)图版28: 1-7
  Litosanthes biflora Bl. Bijdr. 994. 1826; Merr. in Journ. Arn. Arb. 6: 140. 1925; 海南植物志3: 340, 图757. 1974; 中国高等植物图鉴4: 255. 图5924. 1975; 台湾植物志4: 305, 图1016. 1978.——L. gracilis King et Gamble in Journ. Asiat. Bengal 70: 3. 1901.
  小灌木,高达2.5米;小枝纤细,圆柱状,被柔毛。叶小,纸质或近膜质,椭圆形或近卵形,长1.5-2.5厘米,宽约1厘米,有时可达1.5厘米,顶端短尖,基部近楔形,干时榄绿色,上面无毛,下面中脉被短柔毛,边缘被稀疏长硬毛;侧脉每边7-9条,纤细;叶柄极短或近无柄。花小,有梗,2朵于腋生、长5-17毫米的总梗上聚生;苞片小,披针形,长0.5毫米;萼长1.5毫米,近无毛,檐部稍扩大,裂片三角形,长约0.5毫米;花冠白色,长约2-3毫米,外面无毛,里面喉部被长柔毛,冠檐裂片卵形,比冠管短,顶端喙状内弯。核果球形或扁球形,直径3-4毫米,成熟时黑色,无毛。花期秋冬之间。
  产台湾和海南。常生于中海拔和低海拔山地密林中,喜稍潮湿的环境。分布于菲律宾。

《Flora of China》 Vol. 19 (2011)
Lasianthus biflorus  (Blume) M. Gangopadhyay & Chakra-barty J. Econ. Taxon. Bot. 16: 338. 1992.
石核木  
Litosanthes biflora Blume, Catalogus, 22. 1823; Lasianthus gracilis King & Gamble.
Shrubs, 1-2.5 m tall; branchlets terete, densely hirsute to pilosulous. Petiole 0.5-2 mm, hirsute to pilosulous; leaf blade thinly to thickly papery, subrhombic or elliptic-obovate, elliptic, or subovate, 1.5-3 cm × 7-15 mm, glabrous adaxially, hirtellous to pilosulous abaxially, base cuneate, margin flat, often undulate, apex acute, often mucronulate; midrib depressed adaxially, prominent abaxially, hirsute or pilosulous abaxially; lateral veins plane adaxially, prominent abaxially, 6-9 pairs, hirsute or pilosulous abaxially, extending to unite with margin; nervules obscure on both surfaces; stipules ± inconspicuous, narrowly triangular, 0.5-2 mm, densely pilosulous to hirtellous, at apex acute sometimes with 2-4 very small lateral projections or lobes. Inflorescence congested-cymose or with solitary flowers, pedunculate; peduncles 0.5-1.7 cm, sparsely hirsute to pilosulous; bracts inconspicuous, lanceolate to linear, 0.3-1.2 mm. Flowers pedicellate; pedicels 0.2-1 mm. Calyx glabrous to sparsely hirtellous; hypanthium portion campanulate, 1.2-1.5 mm; limb deeply 5-toothed; teeth triangular, ca. 0.5 mm. Corolla 2-4 mm, glabrous outside, villous in throat and on inside of lobes; lobes ovate, shorter than tube, rostriform-incurved at apex. Fruit ovoid or depressed globose, 3-5 mm in diam., glabrous, verrucose, 4-grooved; pyrenes 4.
Forests, shaded and wet places; 600-700 m. Hainan, Taiwan, S Yunnan [Indonesia, Malaysia, Philippines, Thailand, Vietnam].

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