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Taiwan Gramineae | Family List | Poaceae | Diplachne

Diplachne fusca (L.)P. Beauv., Ess. Agrost. 80, 163. 1812. Hsu, Fl. Taiwan 5: 473. 1978; Koyama, Grass. Jap. Neighb. Reg. 263. 1987.


Diplachne fusca
leaf cs section-2

Credit: cs kuoh

Festuca fusca L., Sp. Pl. ed. 2. 109. 1763.
Leptochloa fusca (L.) Kunth, Rev. Gram. l: 91. 1829; Honda, Monogr. Poac. Jap. 148. 1930.
Triodia formosana Honda, Bot. Mag. Tokyo 41: 12. 1927, Monogr. Poac. Jap. 114. 1930.

Culm tufted. Blade linear, needle-like, about 12 cm long by 1 mm wide; ligule hyaline, about 2 mm long, tongue-shaped. Inflorescence a contracted panicle, about 10 cm long. Spikelets several-flowered, shortly pedicelled, about 6 mm long by 2-2.2 mm wide; glumes chartaceous, conspicuously 1-nerved, lanceolate, acute; lowest lemma chartaceous, 3-5 mm long, broadly lanceolate, 3-nerved, 2-toothed, margins inrolled, basal part with short silky hairs; midrib prolonged into a short awn of about 1.5 mm long; palea elliptical, chartaceous, 2-keeled, siliceous on keels; anther about 0.5 mm long. Caryopsis about 2 mm long; embryo 1/3 the length of the caryopsis.

CHIAYI: Chientungkang, Liu s. n. Aug. 7, 1970. TAINAN: Anping, Hsu s. n. June 24, 1968*.

Widely distributed in India, extending to Egypt and Tropical and South Africa through Southeast Asia to Australia.

It is usually found in littoral regions.

midrib 中肋: (la)large:several vascular bundles

leaf surface 表面: (mix)mixed type with variable surface nodules

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: 2

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

distance between two adjancent vein 脈間距: 110 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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    Flora of Pakistan  
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