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Taiwan Gramineae | Family List | Poaceae | Chloris

Chloris barbata Sw., Fl. Ind. Occ. 1: 200. 1797. Hsu, Fl. Taiwan 5: 462. 1978; Koyama, Grass. Jap. Neighb. Reg. 279. 1987.

孟仁草

Chloris barbata
UV fluorescence of leaf cross section

Credit: JW Lin

Andropogon barbatum L., Mant. Pl. Att. 302. 1771, non L. 1759. Chloris inflata Link, Enum. Hort. Berol. l: 105. 1821; Senaratna Grass Ceylon ; pl. 11. 1956; Keng, l. c. 466. f. 399. 1959.

Culms tufted. Blade about 1.5 mm wide, siliceous on surface; ligule ciliate , about 0.3 mm long. Inflorescence a digitate spike. Spikelets 3-flowered, about 3 mm long; glumes membranous, conspicuously 1-nerved; the lower deltoid-lanceolate, about 1.2 mm long, acute; the upper narrowly lanceolate, about 2.5 mm long, shortly awned; lower floret fertile; lemma about 2.7 mm long, chartaceous, 3-nerved, midrib extending into a long awn of 4 times the length of the lemma, margins hispid, 2-toothed; palea about 2.2 mm long, membranous, with a sinus at the apex, minutely ciliate, 2-keeled, upper part oblong, lower part linear; sterile lemma 2-lobed, 3-nerved, margins siliceous; anthers about 0.5 mm long. Caryopsis, about 1.6 mm long; embryo 1/2 as long as the caryopsis.

NANTOU: Chitou, Kuoh 13502. CHIAYI: Chiayi, De Vol 7095 *. TAINAN: Hsinhua, Wang 20080. KAOHSIUNG: Kaohsiung, Hsu 533-1. PINGTUNG: Ssuchungchi, Chang 2121.

Distributed in the tropics of Southeast Asia, introduced elsewhere, but some authors have considered it to be a native of tropical America.

Cattle are said to be partial to this grass when it is young, but avoid it when the inflorescence matures. It has a purplish inftorescence with nearly globose sterile lemmas.

midrib 中肋: (la)large:several vascular bundles

leaf surface 表面: (fla)flat surface

sclerenchyma 厚壁組織: (abscl)on abaxial side of vein

chlorenchyma 葉綠組織: (radia)cells radiate and lesser than
bundle sheath cell in width

bundle sheath 維管束鞘: (dki)two bundle sheaths the inner one
with conspicuous chloroplast

buliform cells well developed 泡狀細胞發達: mainly appear in adaxial side

with small vein under buliform cells泡狀細胞下有小脈: (bchal)bulliform sets connect with colorless cells
in long row

chlorenchyma cell number between two adjacent veins: 2

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (out)large amount and in centrifugal site

mestome sheath 內束鞘細胞: (Xyms+)metaxylem pole adjacent with
mestome sheath

distance between two adjancent vein 脈間距: 85 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 1

chlorenchyma cell shape in LS 葉綠細胞縱面形狀: lobed


 

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  • UV fluorescence of leaf cross section (JW Lin)
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  • Image/GIF (CC Hsu, 1975 Taiwan Grasses)
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    Flora of China  
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