细小香茅
细小香茅 |
中文学名:细小香茅 拉丁学名:Cymbopogon minor B. S. Sun & R. Zhang ex S. M. Phillips & H. Peng 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 |
细小香茅(xì xiǎo xiāng máo),拉丁文名:Cymbopogon minor B. S. Sun & R. Zhang ex S. M. Phillips & H. Peng,禾本科、香茅属 多年生草本。多年生草本。丛生,象金属丝的秆,60-70厘米高。 叶鞘无毛; 叶片狭线形,苍绿色,约 20 * 0.1-0.2 厘米,平滑,无毛,基部渐狭; 叶舌1.3-2毫米Spathate 圆锥花序适中浓,30厘米的可达; 线形,带红色的spatheoles,1.2-1.5厘米; 绿色的总状花序,成熟时外折,同性花对退化至1短狭窄; 轴节间和花梗slenderly 线, 无梗小穗狭长圆形,产于海拔约900米,分布于云南东北。 [1]
目录
形态特征
多年生草本。丛生,象金属丝的秆,60-70厘米高。 叶鞘无毛; 叶片狭线形,苍绿色,约 20 * 0.1-0.2 厘米,平滑,无毛,基部渐狭; 叶舌1.3-2毫米Spathate 圆锥花序适中浓,30厘米的可达;
线形,带红色的spatheoles,1.2-1.5厘米; 绿色的总状花序,成熟时外折,同性花对退化至1短狭窄; 轴节间和花梗slenderly 线, 无梗小穗狭长圆形,3.8-4毫米;
更低的颖片草质, 浅凹的中间以下, 用中陷的基地的一根短束胼胝体头发, 上面外稃2裂; 芒1.2-1.3 厘米Pedicelledspikelet 狭窄,0.5-2.5毫米,退化至这空更下部的颖片。 果期 10月。
FOC >> Vol.22 (2006) >> Poaceae >> Cymbopogon | eFloras.org Link
6.Cymbopogon minor B. S. Sun & R. Zhang ex S. M. Phillips & H. Peng细小香茅 xi xiao xiang mao
细小香茅 Cymbopogon minor Perennial. Culms tufted, wiry, 60–70 cm tall. Leaf sheaths glabrous; leaf blades narrowly linear, pale green, ca. 20 × 0.1–0.2 cm, smooth, glabrous, narrowed toward base; ligule 1.3–2 mm.
Spathate panicle moderately dense, up to 30 cm; spatheoles linear, reddish, 1.2–1.5 cm; racemes green, deflexed at maturity, homogamous pair reduced to 1 short narrow spikelet; rachis internodes and pedicels slenderly linear, margins ciliate with ca. 0.7 mm hairs increasing to 2–3 mm at apex, internode apex expanded, cupular, scarious, toothed.
Sessile spikelet narrowly oblong, 3.8–4 mm; lower glume herbaceous, shallowly concave below middle, a short tuft of callus hairs in base of concavity, lightly keeled below middle, sharply keeled above, keels scabrid, wingless, 2–4-veined between keels above middle;
upper lemma 2-lobed; awn 1.2–1.3 cm. Pedicelledspikelet narrow, 0.5–2.5 mm, reduced to the empty lower glume. Fr. Oct.
产地生境
- Roadsides in grasslands; ca. 900 m. NE Yunnan.
在牧场的路旁; 海拔约900米,云南东北。
辨析
This species is known only from the type. It shares with Cym-bopogon liangshanensis the unusual character, not otherwise seen in Chinese species, of reduced homogamous and pedicelled spikelets.
模式标本种只见到模式标本模式标本。它与Cym同享bopogon的liangshanensis 不平常的特征,并非退化的同性花和pedicelled小穗的在中国种里看见的否则。