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FOC | Family List | FOC Vol. 23 | Cyperaceae | Courtoisina

1. Courtoisina cyperoides (Roxburgh) Soják, Cas. Nár. Muz. Praze, Rada Prír. 148: 193. 1980.

翅鳞莎 chi lin suo

Kyllinga cyperoides Roxburgh, Fl. Ind. 1: 187. 1820; Cyperus pseudokyllingioides Kükenthal; Mariscus cyperoides (Roxburgh) A. Dietrich.

Culms 8-38(-80) cm tall, slightly slender, compressed cylindric, sometimes obtusely 3-angled at apical part, smooth. Leaves several, basal, shorter than to equaling culm; sheath short, usually split; leaf blade 2-3 mm wide, flat, apical margin spinulose. Involucral bracts 3-5, leaflike, basal 2 or 3 longer than inflorescence. Inflorescence a compound anthela; rays 3-7, mostly to 4.5 cm, unequal in length, each with (0-)3-6 raylets; raylets less than 1.5 cm. Spikes globose, 5-9 mm in diam., with 6-15 densely clustered spikelets. Spikelets broadly ellipsoid to ellipsoid, ca. 3 × 1.5-2 mm, strongly compressed, 1- or 2-flowered. Glumes yellowish brown, boat-shaped, 3.5-4 mm, membranous, laterally 1-veined, keel glaucous, broadly winged, and extending into an apical mucro. Stamens 3; anthers oblong. Style short; stigmas 3, slightly longer than style, laxly papilliferous. Nutlet dark reddish brown, narrowly oblong, 3-sided with sharp angles, 2.7-3 mm, densely puncticulate, apex acuminate. Fl. and fr. Jun-Sep. 2n = 10.

Grasslands on mountain slopes, ditch margins, along trails; 1000-1700(-1800) m. SE Xizang, C and S Yunnan [Bhutan, India, Laos, Myanmar, Nepal, Thailand, Vietnam; Africa, Indian Ocean islands, Madagascar].


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