All Floras      Advanced Search
Login | eFloras Home | Help
Taiwan Gramineae | Family List | Poaceae | Paspalum

Paspalum conjugatum Bergius, Act. Helv. Phys.-Math. 7: 129. 1762; Hsu, Fl. Taiwan 5: 581, pl.

兩耳草

Paspalum conjugatum
leaf cs section

Credit: cs kuoh

Perennials, with long stolons; culms compressed, nearly solid; ligule a ring of hairs. Inflorescence of a pair of racemes, racemes slender, 6-12 cm long, rachis 0.8 mm wide, serrate; pedicels ca. 1 mm long; spikelets in 2 rows. Spikelets 2-flowered, solitary, ovate, slightly acute, 1.5-1.8 mm long; lower glume absent; upper glume and lower lemma similar, thin, margins of upper glume delicately fringed with long silky hairs, hairs as long as spikelet; lower lemma flattened abaxially; upper lemma indurate, ovate, margins inrolled, as long as spikelet, palea indurate, acute, margins inrolled. Caryopsis ca. 1.2 mm long, plano-convex, embryo 1/3 length of grain. Originally from America, now widely naturalized in warm regions of the world. Taiwan, very common in shady places.

ILAN: Chiaochi, Hsu 833. TAIPEI: Kankou, Hsu 640. TAOYUAN: Neili, Hsu TAICHUNG: Kukuan, Hsu 669. NANTOU: Sun Moon Lake, Hsu 1349. CHIAYI: Chichou, Suzuki 4535. PINGTUNG: Kenting, Hsu 1098. TAITUNG: Ansou, Hsu 1044. HUALIEN: Yuli, Yamamoto 3050.

midrib 中肋: (la)large:several vascular bundles

leaf surface 表面: (fla)flat surface

sclerenchyma 厚壁組織: (bAgir)on both sides of some veins
as anchor-sahped girder

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: 46 micrometer

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


 

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

    Flora of China  
  • Illustration
  • Illustration

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |