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Taiwan Gramineae | Family List | Poaceae | Paspalum

Paspalum orbiculare G. Forst., Fl. Ins. Austr. 7. 1786; Hsu, Fl. Taiwan 5: 587. 1978.

圓果雀稗

Paspalum orbiculare
drawing

Credit: CC Hsu

Perennials; culm ftufted, erect, glabrous, 40-80 cm tall. Blade 5-10 mm wide, slightly glabrous; sheath glabrous, longer than internode, compressed-keeled; ligule membranaceous, ca. 1.7 mm long. Inflorescence with 3-5 racemes, racemes 3-6 cm long; rachis 1.5-3 mm wide, smooth. Spikelet obtuse, ca. 2 mm long, elliptic or obovate, usually solitary, imbricate, in 2 rows; lower glume absent; upper glume and lower lemma equal, membranaceous, 3-veined; upper lemma brown at maturity, coriaceous, shiny.

TAICHUNG: Taichung, Shimada 361C. TAINAN: Tainan, Yamamoto & Suzuki 2342. PINGTUNG: Chihou, Morimoto 7500.

India, Nepal, Sri Lanka, Indochina, Malesia, northern Australia and Polynesia. Taiwan, in moist places.

midrib 中肋: (la)large:several vascular bundles

leaf surface 表面: (fla)flat surface

sclerenchyma 厚壁組織: (mistr)strand variable with size of vein

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

bundle sheath 維管束鞘: (sk)single bundle sheath with
conspicuous chloroplast

buliform cells not well developed 泡狀細胞不發達: (irreg)epidermal cells irregular in size

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
outer bundle sheath

distance between two adjancent vein 脈間距: 87 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 2

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


 

Related Objects Image Gallery 
  • drawing (CC Hsu)
  • Image/JPEG
  • leaf cs section (cs kuoh)
  • Image/JPEG

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