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Taiwan Gramineae | Family List | Poaceae | Arundo

Arundo formosana Hack., Bull. Herb. Boissier. 7(9): 724. 1899.

台灣蘆竹

Arundo formosana

Credit: CC Hsu, 1975, Taiwan Grasses

Perrenial, tufted with short rhizome. Culm pendent, about 2-6 mm in diameter. Blades 10-12 mm wide, basal parts covered with long silky hairs; ligule 0.5 mm long, fimbriate on upper margin, hipid on dorsal side; sheath usually longer than the internode, tightly clothing the culm, glabrous Panicle open, 10-30 cm long. Spikelets 2-5-flowered, about 6 mm long. Glumes subcoriaceous, siliceous, 3-nerved, rarely 4-nerved; the lower glume about 3 mm long, apex acute, the uppe glume about 4 mm long, apex gradually narrowed; lemma about 3 mm long, 5-nerved, apex with a 2 mm long awn, basal part silky hairy which are nearly as long as the lemma; palea about 2.5 mm long, 2-keeled, the margins hispid, apex with a sinus; lodicules 2, truncate, conspicuously nerved, stamens 3. anther 1.5 mm long.

TAIPEI:Kuanyingshan, Hsu 1137; Shimen, Hsu 1267. ILAN: Lotung, Sasaki, s.n. Sept. 4, 1925; Kueishan, Hsu 877.MIAOLI: Taan, Kuo & Kao 437. TAICHUNG: Sungmao, Kuoh et al. 8754. NANTOU: Chitou, Kuoh 3687, Hoshe, Simizu s.n. Jan. 25, 1961. CHIAYI:Kuantzuling, DeVol 6091. KAOHSIUNG: Liukuei, Hsu 5066. PINGTUNG: Tsaopu, Hsu 1089. TAITUNG: Botel Tobago, Hsu 9369, 9362; Green Island, Kawakami 3256. HUALIEN: Chinshueishan, Nakamura 5536.

Ryukyus, Taiwan and Philippine.

Occasional in dry grassland as well as on rocky cliffs.

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: (armed)compact armed cells

bundle sheath 維管束鞘: (nke)bundle sheaths without chloroplast

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

chlorenchyma cell number between two adjacent veins: 12

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (not)no chloroplast

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

distance between two adjancent vein 脈間距: 125 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 3

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


 

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