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台湾琼榄Gonocaryum calleryanum

时间:2018-06-28 12:26来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 台湾琼榄 学名( Scientific Name ): Gonocaryum calleryanum (Baill.) Becc. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Gonocaryum diospyrosifolium Hayata Phlebocalymna ca
中文名(Chinese Name):台湾琼榄
学名(Scientific Name):Gonocaryum calleryanum (Baill.) Becc.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Gonocaryum diospyrosifolium Hayata  Phlebocalymna calleryana Baill.  Gonocaryum diospyrosifolia Hayata  Gonocaryum tarlacense S.Vidal  Gonocaryum teysmannianum Scheff.
科属(Family & Genus):茶茱萸科Icacinaceae琼榄属Gonocaryum
形态特征(Description):灌木;小枝和嫩枝圆柱形,弯曲,小枝灰色,嫩枝干时淡褐色或黑色。叶圆形或阔卵形,有时中间略折叠,长8-14厘米,宽5-7厘米,先端急尖,基部圆形至楔形,常不对称,边缘全缘而稍下弯,革质,表面具光泽,背面无光泽,干时淡黄绿色,中脉及侧脉在背面隆起,网脉在表面明显隆起,背面不明显;叶柄长1-2厘米。花少数组成短总状花序,长1-2厘米;花两性,无柄或具短柄,被柔毛;具小苞片,宽三角形,长1.5毫米。萼片6,不等,圆形,具短缘毛,长约2毫米,宽2毫米,花冠圆筒形,长5毫米,花冠管长3毫米,冠檐5裂片,镊合状排列,三角形,先端急尖,增厚,内弯,长2毫米,基部宽2毫米,雄蕊5,与花冠裂片互生,着生花冠管喉部,花药无柄,卵状三角形,长和宽0.8毫米,先端钝急尖,具微缺刻,基部宽心形。子房圆锥形,长和宽1.5毫米,被短硬毛,具极短的柄,1室,有2枚下垂胚珠,柱头长0.2毫米。核果卵形至椭圆形,长2.5-3.5厘米,宽2-2.2厘米,黑色,光滑,外壳坚脆,胚乳分裂成狭窄扁平的裂片。
分布(Distribution):产我国台湾。菲律宾、印度尼西亚也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 11 Page 507, 508   
Gonocaryum calleryanum (Baillon) Beccari, Malesia. 1: 123. 1877.
台湾琼榄 tai wan qiong lan| Icacinaceae  | Gonocaryum
Phlebocalymna calleryana Baillon, Adansonia 9: 147. 1869; Gonocaryum diospyrosifolium Hayata.
Shrubs. Branchlets and young branches curved, terete; branchlets gray; young branches light brown or black when dry. Petiole 1-2 cm; leaf blade light yellow-green when dry, abaxially not shiny, adaxially shiny, orbicular or broadly ovate, 8-14 × 5-7 cm, leathery, midvein and lateral veins abaxially prominent, reticulate veins inconspicuous abaxially, conspicuously prominent adaxially, base rounded to cuneate, usually unequal, margin entire. Racemes short, 1-2 cm, few flowered. Flowers bisexual, without or with short pedicel, pubescent; bractlets broadly triangular, ca. 1.5 mm. Sepals 6, unequal, orbicular, ca. 2 × 2 mm, ciliate. Corolla cylindric, ca. 5 mm; tube ca. 3 mm, apically 5-lobed; lobes triangular, ca. 2 mm, base ca. 2 mm wide, valvate, apex acute, thickened, incurved. Stamens 5, inserted at corolla throat; anthers sessile, ovoid-triangular, ca. 0.8 × 0.8 mm. Ovary conical, ca. 1.5 × 1.5 mm, minutely hispid, with a very short stalk; stigma ca. 0.2 mm. Drupe black, ovoid to ellipsoid, 2.5-3.5 × 2-2.2 cm, glabrous; exocarp thin, fragile. Fl. and fr. unknown.
Forests on coral reef islands; sea level. Taiwan (Hengchun peninsula, Lan Yu) [Indonesia, Philippines].
This is a rare species.


 


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