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FOC | Family List | FOC Vol. 22 | Poaceae | Drepanostachyum

1. Drepanostachyum membranaceum (T. P. Yi) D. Z. Li, Novon. 15: 600. 2005.

膜箨镰序竹 mo tuo lian xu zhu

Fargesia membranacea T. P. Yi, Acta Bot. Yunnan. 14: 135. 1992.

Rhizome neck 2–5 cm, 1–1.7 cm in diam., solid. Culms 1.5–2 m, 5–10 mm in diam.; internodes cylindrical, (4–)13–15(–18) cm, glabrous; wall 1.8–3 mm thick; supra-nodal ridge prominent; sheath scar prominent. Branches 13–33 per node, ascending, subequal; buds 5–7, suborbicular. Culm sheaths persistent, purple, linear-triangular, longer than nodes, thinly leathery or thickly papery proximally, membranous distally; auricles and oral setae absent; ligule 1–2 mm, initially fimbriate; blade erect, linear, glabrous, involute. Leaves 4 or 5 per ultimate branch; sheath glabrous; auricles and oral setae absent; ligules triangular-arcuate, 1–1.5 mm; blade linear-lanceolate, 4–9 × 0.3–0.6 cm, glabrous, secondary veins 2(or 3)-paired, transverse veins slightly distinct, base cuneate, margins serrulate. Inflorescence unknown.

* 2300–2400 m. S Sichuan (Mianning).


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