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Taiwan Gramineae | Family List | Poaceae | Lepturus

Lepturus repens (G. Forst.) R. Br., Prodr. 207. 1810. Hsu, Fl. Taiwan 5: 494. 1978; Koyama, Grass. Jap. Neighb. Reg. 291. 1987.


Lepturus repens

Credit: CC Hsu, 1975 Taiwan Grasses

Culm long creeping. Blade about 20 cm long by 5 mm wide, subulate; ligule about 0.8 mm long, chartaceous, truncate and minutely ciliate on backside. Inflorescence a spike; spikelets sunken in a cavity of the rachis joint. Spikelets 2-flowered, about 12 mm long; rachis joints about 4 mm long; lower glume deltoid, membranous; margins minutely scabrid, about 0.8 mm long; upper glume coriaceous, about 12 mm long, lanceolate, aristate, margins membranous and inrolled; lemma subcoriaceous, about 4.5 mm long, broadly lanceolate, 3-nerved, lateral nerves close to margin, acute, basal part minutely bearded; palea elliptical, subcoriaceous, as long as the lemma; anther about 2 mm long. Caryopsis about 6 mm long, oblong; embryo 1/2 the length of the caryopsis.

PINGTUNG: Hsu 513, Hsu 13611,. TAITUNG: Botel Tobago, Hsu 9366, Kuoh 4975;Hsiao-Ye-Liu, YF Chen 20445.

Distributed along the coasts of Ceylon, Kenya, Mascarenes to Taiwan and Australia.

leaf surface 表面: (fla)flat surface

sclerenchyma 厚壁組織: (boscl)(bostr)on both sides of veins as
strand or girder

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

bundle sheath 維管束鞘: (dko)two bundle sheaths the outer one
with conspicuous chloroplast

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

no small vein under buliform cells泡狀細胞下無小脈: (bcfan)bulliform cell with colorless cells
extend beneath it

chlorenchyma cell number between two adjacent veins: 4

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

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

distance between two adjancent vein 脈間距: 129 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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