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

22. Chimonobambusa metuoensis Hsueh & T. P. Yi, J. Bamboo Res. 2(1): 34. 1983.

墨脱方竹 mo tuo fang zhu

Culms 5–7 m, 1–2.5 cm in diam.; internodes green, terete, grooved above branches, initially densely fulvous tomentose; wall 3–4 mm thick, cavity with membranous pith; nodes with strongly prominent ridges; lower branchless nodes usually each with a ring of 12–25 root thorns 2–3 mm; sheath scars prominent, densely retrorsely brown setose, hairs ca. 1 mm; buds triangular-subulate, glabrous. Branches initially 3 per node. Culm sheaths late deciduous, red-purple, narrowly triangular, shorter than internodes, 8–13 cm, 5.5–9 cm wide at base, thinly leathery, minutely off-white setulose, veins distinct, veinlets indistinct, margins densely gray-brown ciliate, apex 3–4 mm; auricles absent; ligule truncate, ca. 1 mm, densely gray-brown ciliate; blade erect, triangular or subulate, 1.5–2 × 1–1.5 mm, glabrous, articulate. Leaves 2 or 3 per ultimate branch; sheath distally dark purple, glabrous, 4–8 cm; ligule slightly prominent, dark purple, truncate, ca. 1 mm, glabrous; blade lanceolate, 12–33 × 1.5–4 cm, papery, glabrous, secondary veins 5–8-paired. Inflorescence unknown. New shoots Jul–Aug.

* Broad-leaved forests; 1900–2200 m. Xizang.


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