1. Tribe BAMBUSEAE - China

64POACEAEnently longitudinally ribbed, cross veinlets obscure, marginsyellow-brown setose, apex narrowly triangular; auricles absent;oral setae 3–7, white-gray, 2–7 mm; ligule short, convex,glabrous; blade erect or revolute, linear-lanceolate, glabrous,rugose, margins revolute, serrulate. Leaves 3–6 per ultimatebranch; sheath purple, glabrous; auricles absent; oral setae 3–5,gray, 1.5–3 mm; ligule very short, glabrous; blade lanceolate,3–11 × 0.5–1.3 cm, glabrous, secondary veins 2–4-paired, transverseveins slightly visible, base cuneate or broadly cuneate,one margin serrulate, other margin obscurely so. Inflorescenceunknown. New shoots Aug.● 2400–2600 m. W Yunnan.The shoots are edible, and the split culms are used for weaving.14. Yushania bojieiana T. P. Yi, J. Bamboo Res. 5(1): 8. 1986.金 平 玉 山 竹 jin ping yu shan zhuRhizome neck 15–50 cm. Culms 3–5 m, 1–1.5 cm indiam.; internodes terete, 23–32 cm, initially basally denselywhite powdery and brown setose; wall 1.5–5 mm thick; nodeswith level or weakly prominent supra-nodal ridge; sheath scarprominent. Branches 6–8. Culm sheath persistent, narrowlytriangular, shorter than internode but at least 3/5 as long, thinlyleathery, abaxially sparsely yellow or yellow-brown setose,setae especially dense at base, margins densely yellow or yellow-brownsetose apically, longitudinal ribs and cross veinletsvery prominent, apex triangular; auricles absent; oral setaedeciduous, absent or light yellow; ligule truncate, ca. 1 mm,initially ciliate; blade linear or linear-lanceolate, glabrous,revolute. Leaves 3–6 per ultimate branch; sheath glabrous orbasally yellow setose; auricles absent; oral setae 3–9, gray-yellow,ca. 6 mm; ligule truncate, ca. 0.5 mm, glabrous; bladelanceolate, 4.3–9.2 × 1–1.5 cm, glabrous, secondary veins 4- or5-paired, transverse veins slightly distinct, base broadly cuneateor rounded, one margin serrulate, other obscurely so. Inflorescenceunknown. New shoots Sep.● 2100–2300 m. S Yunnan.15. Yushania complanata T. P. Yi, J. Bamboo Res. 5(1): 15.1986.梵 净 山 玉 山 竹 fan jing shan yu shan zhuRhizome neck more than 15 cm; internodes solid. Culms3–4.5 m, 0.5–1.2 cm in diam.; internodes terete, 16–24 cm,longitudinally ribbed, flattened above branches, initially denselywaxy, white powdery, glabrous; wall 1.5–2 mm; supra-nodalridge weakly prominent; sheath scar prominent. Branches 3–6.Culm sheath deciduous, triangular-rectangular, longer than internode,thinly leathery, with sparse adnate light yellow oryellow-brown setae, apical margins densely yellow-brown setulose,longitudinal ribs greatly prominent; auricles absent; oralsetae present initially; ligule convex, irregularly fissured, initiallyciliate; blade linear-triangular or linear-lanceolate, glabrous,revolute. Leaves 5–7 per ultimate branch; sheath glabrous; auriclesabsent, oral setae absent or present initially; ligule truncate,glabrous; blade lanceolate, 7–14 × 1–1.6 cm, glabrous, secondaryveins 4- or 5-paired, transverse veins well-defined, onemargin serrulate, other obscurely so. Inflorescence unknown.New shoots Apr.● 2100–2400 m. E Guizhou.16. Yushania longissima K. F. Huang & Q. F. Zheng, WuyiSci. J. 2(2): 20. 1982.长 鞘 玉 山 竹 chang qiao yu shan zhuRhizome neck ca. 30 cm; internodes solid. Culms to 1.5m, to 1.2 cm in diam.; internodes terete, ca. 13 cm, longitudinallyribbed, flattened above branches, initially with whitepowdery ring below node, glabrous; wall 1.5–3 mm thick; supra-nodalridge weakly prominent; sheath scar prominent, withpersistent remains of sheath base. Branches 3–7. Culm sheathgradually deciduous, narrowly triangular, longer than internodes,brown setulose, apically more densely so, longitudinalribs greatly prominent, margins ciliate; auricles absent or small;oral setae initially 3 or 4, 8–10 mm; ligule arcuate, ca. 5 mm,margin glabrous; blade linear-lanceolate, glabrous, revolute.Leaves 5 or 6 per ultimate branch; sheath glabrous; auricles absent,oral setae 1–4, erect, yellow-brown, 2–5 mm; ligule truncate,ca. 0.5 mm, glabrous; blade linear-lanceolate, 4–9 × 0.5–0.9 cm, glabrous, secondary veins 3- or 4-paired, transverseveins not distinct, base cuneate, one margin serrulate, other obscurelyso, apex acuminate. Inflorescence unknown.● About 2100 m. N Fujian.17. Yushania flexa T. P. Yi, Acta Phytotax. Sin. 25: 480. 1987.弯 毛 玉 山 竹 wan mao yu shan zhuRhizome neck more than 37 cm; internodes solid, 6–10mm in diam. Culms 3–5 m, 1–2.5 cm in diam.; internodesterete, 25–40 cm, not ribbed, initially thickly white powderybelow nodes, glabrous, nearly solid; supra-nodal ridge weaklyprominent; sheath scar prominent. Branches 5–8, deflexed.Culm sheaths persistent, triangularly narrowly rounded, shorterthan internodes, prominently longitudinally ribbed, leathery,with densely appressed brown clavate-setose, margins glabrous;auricles absent; oral setae absent or present; ligule convex ortruncate, 1–3 mm, sparsely ciliate; blade easily deciduous, linear-lanceolate,glabrous, margins serrulate, revolute. Leaves 4–6per ultimate branch; sheath purple or purple-green, glabrous;auricles absent; oral setae absent or rarely present; ligulearcuate, 1–2 mm, glabrous; blade lanceolate, 7.5–15.5 × 1.2–2.1cm, glabrous, secondary veins 3–5-paired, transverse veinsslightly visible, base cuneate, one margin serrulate, other obscurelyso. Inflorescence unknown. New shoots Aug–Sep.● 2100–2300 m. S Yunnan.The culms are used for weaving, furniture, and farm tools.18. Yushania exilis T. P. Yi, J. Bamboo Res. 5(1): 20. 1986.沐 川 玉 山 竹 mu chuan yu shan zhuRhizome neck ca. 50 cm; internodes less than 8 mm indiam., solid. Culms 1.5–2.5 m, 5–8 mm in diam.; internodesinitially purple spotted, terete, 25–28 cm, white powderyespecially below nodes, glabrous, not ribbed; wall 1.5–2 mm;nodes with level or weakly prominent supra-nodal ridge; sheathscar prominent. Branches 1–8, pendent toward apex. Culmsheaths persistent, purple-brown, narrowly triangular, shorterthan or equal to internodes, leathery, sparsely brown setulose,