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

36. Fargesia contracta T. P. Yi, J. Bamboo Res. 7(2): 60. 1988.

带鞘箭竹 dai qiao jian zhu

Fargesia contracta f. evacuata T. P. Yi; F. contracta f. fugonensis Hsueh & J. K. Duan.

Rhizome neck 5–6 cm. Culms 3–5 m, 1–2.5 cm in diam.; internodes terete, 18–22 cm, initially densely white powdery, glabrous or initially yellow-brown setose below node, prominently ribbed, usually solid or nearly so, sometimes hollow (f. evacuata); supra-nodal ridges level or weakly prominent; sheath scar prominent, initially light yellow setulose. Branches 3–6 per node; buds broadly ovate to oblong, margins gray to gray-brown ciliate. Culm sheaths persistent, purple-brown, equal to or longer than internodes, proximally leathery, distally papery, proximally very sparsely yellow-brown setose, longitudinal ribs prominent, margins initially densely gray to yellow-brown ciliate, apex sharply narrow and linear; auricles absent; oral setae deciduous, erect, pale yellow to yellow-brown; ligule truncate, glabrous, uniformly fissured; blade erect, linear, glabrous. Leaves 5–7 per ultimate branch; sheath margins white-gray ciliate; auricles absent; oral setae few, gray-yellow, curved; ligule obliquely truncate, ca. 1 mm, tomentose, initially gray ciliolate; blade narrowly lanceolate, 9–13 × 0.5–0.9 cm, abaxially initially sparsely white-gray pubescent, proximally more densely so, secondary veins 3-paired, transverse veins obscure, base cuneate, one margin spinescent-serrulate, other margin obscurely so. Inflorescence unknown. New shoots Apr–May.

* 2000–3000 m. W Yunnan.

Gatherings from Lushui with hollow culm internodes have been described as Fargesia contracta f. evacuata.


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