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Taiwan Gramineae | Family List | Poaceae | Cyrtococcum

Cyrtococcum accrescens (Trin.) Stapf, Hooker’s Icon. Pl. 31(4): 2. t. 3096. 1922; Hsu, Fl. Taiwan 5:.


Cyrtococcum accrescens
cyrtococcum accrescens drawing

Credit: CC Hsu

Panicum accrescens Trin., Sp. Gram. 1: t. 88. 1828.

Annuals; culm slendder, flowering branches to 60 cm tall. Blade lanceolate or linear-lanceolate, more or less appressed pubescent, 7-15 cm long, 13-20 mm wide; sheath margins ciliate, papillosepilose all over; ligule membranaceous, 1-2 mm long. Panicle open, diffuse at maturity, branches capillary. Spikelets ca. 1.3 mm long, compressed, minutely hispidulous at least on glumes and lower lemma;glumes 3-veined; lower glume 1/2 as long as spikelet; upper glume strongly gibbous, slightly shorter than spikelet; lower lemma as long as upper lemma, upper lemma indurate, minutely longitudinally striate, with a small crest on gibbous side (back) near summit; anther ca.0.5 mm long.

TAIPEI: Kankou, Hsu 644; Muzishan, Hsu 200. MIAOLI: Chunan, Hsu 573. TAICHUNG: Taichung, Hsu s. n. TAINAN: Kuantzuling, Mori 655. TAITUNG: Twau, Hsu 319.

The tropics of southeastern Asia and China. Taiwan, in forest.

leaf surface 表面: (nod)nodules on both surfaces

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: 9

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: 190 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 4

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


Related Objects Image Gallery 
  • cyrtococcum accrescens drawing (CC Hsu)
  • Image/JPEG
  • leaf cs section (cs kuoh)
  • Image/JPEG

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