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 圆基香茅

来自 植物智 的图片

中文学名:圆基香茅

拉丁学名:Cymbopogon

annamensis A.Camus

界:植物界

门:被子植物门

纲:单子叶植物纲

目:禾本目

科:禾本科

属:香茅属

圆基香茅(yuán jī xiāng máo),拉丁文名:Cymbopogon annamensis (A. Camus) A. Camus,异名:Cymbopogon bassacensis Cymbopogon martini var. annamensis ,禾本科香茅属 多年生草本。丛生,象金属丝的秆,可达1米高。 叶鞘无毛; 叶片线形披针形或线形,有白霜, 10-30 * 0.5-1 厘米,无毛,粗糙的边缘,基部圆形,丝状的先端; 叶舌0.5-1.5毫米Spathate 圆锥花序狭窄,疏忽,6-20厘米; spatheoles红棕色,2-2.5厘米; 总状花序红棕色到略带紫色,分布于 云南[1]

形态特征

多年生草本。丛生,象金属丝的秆,可达1米高。 叶鞘无毛; 叶片线形披针形或线形,有白霜, 10-30 * 0.5-1 厘米,无毛,粗糙的边缘,基部圆形,丝状的先端;

叶舌0.5-1.5毫米Spathate 圆锥花序狭窄,疏忽,6-20厘米; spatheoles红棕色,2-2.5厘米; 总状花序红棕色到略带紫色,1.5-2厘米; 在边上的轴节间和花梗白色纤毛虫;

使膨胀的同性花的对的花梗,桶形或者宽专栏,发亮,熔化成节间在基部。 倒披针形的无梗小穗,3.6-4.5毫米; 更低的颖片平, 深深的上面外稃2裂; 大约1.6 厘米Pedicelled小穗3.5-4毫米的芒

FOC >> Vol.22 (2006) >> Poaceae >> Cymbopogon | eFloras.org Link 3.Cymbopogon annamensis (A. Camus) A. Camus圆基香茅 yuan ji xiang mao

圆基香茅 Cymbopogon annamensis Cymbopogon martini (Roxburgh) Will. Watson var. anna-mensis A. Camus, Bull. Mus. Natl. Hist. Nat. 25: 670. 1919; C. bassacensis A. Camus.Perennial.

Culms tufted, wiry, up to 1 m tall. Leaf sheaths glabrous; leaf blades linear or linear-lanceolate, glaucous, 10–30 × 0.5–1 cm, glabrous, margin scabrid, base rounded, apex filiform; ligule 0.5–1.5 mm. Spathate panicle narrow, lax, 6–20 cm;

spatheoles reddish brown, 2–2.5 cm; racemes reddish brown to purplish, 1.5–2 cm; rachis internodes and pedicels white-ciliate on margins; pedicel of homogamous pair swollen, barrel-shaped or broadly columnar, shiny, fused to internode at base.

Sessile spikelet oblanceolate, 3.6–4.5 mm; lower glume flat, deeply grooved below middle (appearing as a line or keel on inside), keels winged above middle, veinless or obscurely 2-veined between keels; upper lemma deeply 2-lobed; awn ca. 1.6 cm. Pedicelled spikelet 3.5–4 mm.

产地生境

Open forests, forest margins. Yunnan [Laos, Thailand, Vietnam]. 疏林,林缘。 云南 [老挝,泰国,越南 ].

辨析

This species is taken here in a broad sense to include all slender, narrow-leaved specimens from S China and Indochina with a flat, grooved, winged sessile spikelet and a swollen lowermost pedicel. The differences from Cymbopogon caesius (Nees ex Hooker & Arnott) Stapf, from E Africa to India, are very slight. Cymbopogon caesius tends to have a longer ligule, to 4 mm, and paler inflorescences. Likewise, C. annamensis hardly differs from C. mekongensis, except in the swollen lowermost pedicel. 本种花费在这里在广义上包括全部纤细, 来自Cymbopogon caesius(尼斯前用钩的人和阿诺特)Stapf的差别,从非洲东部到印度,非常轻微。 Cymbopogon caesius倾向于有一长叶舌,对4毫米和浅的花序。 同样,除了在膨胀的最下的花梗里,C. annamensis几乎不不同于C. mekongensis。

标本鉴定信息

学名 Cymbopogon annamensis A.Camus 中文名 鉴定人 L.Liu 鉴定时间 19800000

采集信息

采集人 Y.C.Yang 采集号 3018 采集时间 采集地 中国 海拔 生境 习性 物候期 有花有果

参考资料

  1. 圆基香茅植物智 [引用日期2019-12-19]