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Taiwan Gramineae | Family List | Poaceae | Leptochloa

Leptochloa panicea (Retz.) Ohwi, Bot. Mag. Tokyo. 55: 311. 1941. Hsu, Fl. Taiwan 5: 90. 1978; Koyama, Grass. Jap. Neighb. Reg. 261. 1987.


Leptochloa panicea
leaf cs section

Credit: cs kuoh

Poa panicea Retz., Obs. Bot. 3: 11. 1783.
Festuca filiformis Lam., Tabl. Encycl. 1: 191. 1791.
Leptochloa filiformis (Lam..) Beauv., Ess. Agrost. 71, 166. 1812; Honda, Monogr. Poac. Jap. 147. 1930.

Culm tufted, up to 20 cm long. Blade linear-lanceolate, 4-6 mm wide, 5-nerved, covered with tubercular hairs along the lateral nerves. Inflorescence a large open panicle, about 20 cm long. Spikelets usually 3-flowered, about 1.1 mm long, upper-most floret reduced to merely a rachilla; glumes chartaceous, lanceolate, scabrous on backside, 1-nerved; the lower glume about 1 mm long, slightly shorter than the upper; lemma ovate-lanceolate, subcoriaceous, 3 nerved, margins slightly inrolled, pubescent on backside; palea chartaceous, elliptical, 2-keeled, sparingly hispid on back, nearly as long as the lemma. Caryopsis about 0.6 mm long, surface reticulate, rounded at the apex, acute at base; embryo 1/3 the length of the caryopsis.

TAIPEI: Taipei, Suzuki 12356. TAICHUNG: Neipu, Hsu 273. TAINAN: Chiali, Morimoto 232.. KAOHSIUNG: Fengshan, Wang 20087. PINGTUNG: Hengchun, Hsu 501. TAITUNG: Botel Tobago, Sasaki s. n. July 5, 1935; Green Island, Sasaki s. n. July 5, 1935.

Distributed in tropical Asia and Africa.

This grass is locally rather scarce.

leaf surface 表面: (sha)upper surface with shallow notch
between the veins

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

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

distance between two adjancent vein 脈間距: 100 micrometer

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


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