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Taiwan Gramineae | Family List | Poaceae | Isachne

Isachne globosa (Thunb.) O. Kuntze, Rev. Gen. Pl. 2: 778. 1891. Hitchc. in Lingn. Sci. Journ. 7: 222. 1931 ; Honda, Monogr. 279 . 1930; Yamamoto in Journ. Trop. Agric. 9: 299. 1937; Ohwi, l. c. 11: 54. 1942; Keng, l. c. 643. f. 581. 1959; Bor, l. c. 580. 1960; Backer & van den Brink, Fl. Java 3: 581. 1968; Hsu in Taiwania 16: 271. 1971, Taiwan Grass. 473. pl. 139. 1975.


Isachne globosa

Credit: CC Hsu, 1975 Taiwan Grasses

Milium globosum Thunb., Fl. Jap. 49. 1784.
Isachne australis R. Br., Prodr. 196. 1810; Hook. f., Fl. Brit. Ind. 7: 24. 1879; Hayata Icon. Pl. Form. 7: 57. 1918. Culm tufted, branching and rooting at the lower nodes, the flowering culm 30-60 cm long. Blade linear-lanceolate, 2-8 cm long; sheath shorter than the internode, ciliate on the margins; ligule a ring of hairs. Panicle open, with yellowish glandular bands on the panicle branchlets. Spikelets sometimes purplish, about 2 mm long, glumes broadly elliptical, slightly shorter than the spikelet, nerves obscure, glabrous or hispidulous toward the obtuse apex; lower floret staminate, slightly larger and of a thinner texture than the glabrous or pubescent upper floret; anther about 0.9 mm long.

TAIPEI: Yangmingshan, Hsu 939. ILAN: Chiaochi, Hsu 826. TAOYUAN: Taoyuan; Suzuki 4019. MIAOLI: Senghsin, Hsu 1360. TAICHUNG: Tungshih, Hsu 574. NANTOU: Chingshuikou, Huang s. n. Oct. 30, 1958. TAINAN: Liuchia, Mori 687. PINGTUNG: Pingtung,Matuda s. n. Nov. 1, 1917; Nanjenshan, Wang 12743.

Widely distributed in Southeast Asia, extending to Japan and Australia.

This is a very common aquatic grass growing on the plains, in rice fields and in shallow water, and is acceptable to grazing animals, and since it is common it is of considerable importance. Sometimes it is a troublesome weed in rice fields.

midrib 中肋: (no)not conspicuous

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: (isach)cells elongate and radiate upward
like crab legs

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

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

with small vein under buliform cells泡狀細胞下有小脈: (fansh)bulliform set shell-shaped or fan -shaped

chlorenchyma cell number between two adjacent veins: 5

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: 225 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: non -lobed


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