1. Tribe BAMBUSEAE - China

72POACEAEbrous. Leaves 6–11 per ultimate branch; sheath glabrous, marginssometimes gray ciliate; auricles and oral setae absent;ligule truncate or convex, ca. 0.5 mm, glabrous; blade narrowlylanceolate, 11–22 × 1.5–2.6 cm, glabrous, secondary veins 5–7-paired, transverse veins distinct, base cuneate, margins serrulate.Inflorescence unknown. New shoots Jul.● 1300–1600 m. N Guizhou.53. Yushania confusa (McClure) Z. P. Wang & G. H. Ye, J.Nanjing Univ., Nat. Sci. Ed. 1981(1): 92. 1981.鄂 西 玉 山 竹 e xi yu shan zhuIndocalamus confusus McClure, Lingnan Univ. Sci. Bull.9: 20. 1940; Sinarundinaria confusa (McClure) P. C. Keng.Rhizome neck 10–40 cm, (2–)4–7 mm in diam. Culms 1–2 m, 2–10 mm in diam.; internodes purple spotted, terete, 10–33 cm, initially white powdery, glabrous, nearly solid; supranodalridges level; sheath scar prominent, initially yellowsetose. Branches 1 or 2 at lower nodes and 3–5 at upper nodes.Culm sheaths persistent, narrowly triangular, leathery, brownsetose, margins setose; auricles absent; oral setae readily deciduous;ligule truncate, ca. 1 mm, glabrous; blade reflexed, linearlanceolateor linear, basally slightly hairy adaxially, marginsserrulate. Leaves 2–5(–7) per ultimate branch; sheath marginswhite-gray ciliate; auricles absent; oral setae 2–5 mm; liguletruncate, ca. 1 mm, glabrous; blade lanceolate, 8–13 × 0.6–1.5(–2.1) cm, abaxially thinly hairy basally, secondary veins 4–6-paired, transverse veins distinct, base cuneate, one marginserrulate, other margin obscurely so. Inflorescence paniculate;spikelet 1.2–3.4 cm; florets 2–6, green-purple; rachilla 3–4 mm,hairy. Lemma lanceolate, margins ciliolate; palea keels ciliate,apex bifid. Anthers yellow. Ovary ovoid, glabrous. Caryopsisunknown. New shoots Apr–Aug.● 1000–2300 m. N Guizhou, W Hubei, W Hunan, SW Shanxi, ESichuan.54. Yushania pauciramificans T. P. Yi, Bull. Bot. Res., Harbin8(4): 71. 1988.少 枝 玉 山 竹 shao zhi yu shan zhuRhizome neck 14–50 cm, 6–12 mm in diam. Culms 2–3.5m, 0.6–1.2 cm in diam.; internodes purple, terete, 15–27 cm,initially with a white powdery ring below each node, glabrous;wall 2.5–3.5 mm thick; nodes with weakly prominent supranodalridge; sheath scar greatly prominent, woody, glabrous.Branches 1–3 at lower nodes, ca. 5 at upper. Culm sheathspersistent, triangularly narrowly rounded, 2/5–1/2 as long asinternodes, cartilaginous, erectly gray setose, adaxially waxy,margins densely gray-yellow setose; auricles absent; oral setaepresent initially; ligule truncate or convex, 1–1.5 mm, glabrous;blade linear-lanceolate, glabrous, revolute. Leaves 2–5 perultimate branch; sheath margins glabrous; auricles absent; oralsetae 5–7, gray-yellow, 3–9 mm; ligule truncate, glabrous;blade lanceolate or elliptic-lanceolate, 5.2–16 × 1.1–2.8 cm,glabrous, secondary veins 4–6-paired, transverse veins distinct,base broadly cuneate or rounded, one margin serrulate, othermargin obscurely so. Inflorescence unknown. New shoots Aug.● About 2500 m. C Yunnan.55. Yushania punctulata T. P. Yi, J. Bamboo Res. 5(1): 59.1986.抱 鸡 竹 bao ji zhuRhizome neck to 46 cm, 2.5–4.5 mm in diam. Culms 1–1.8 m, 3–5 mm in diam.; internodes initially purple spotted,terete, 18–25 cm, with white powdery ring below each node,glabrous, nearly solid; supra-nodal ridge level or weakly prominent;sheath scar prominent, glabrous. Branches 1 at lowernodes to 3 at upper nodes. Culm sheaths persistent, triangularlynarrowly rounded, ca. 1/3 as long as internodes, leathery,sparsely adnately gray setose, becoming glabrous, marginsdensely yellow-brown setose; auricles absent or small; oralsetae radiating; ligule truncate or convex, ca. 0.5 mm, glabrous;blade reflexed, linear-lanceolate, glabrous. Leaves 2–12 perultimate branch; sheath margins glabrous; auricles absent; oralsetae absent or present; ligule truncate or arcuate, glabrous;blade lanceolate, 13–23 × 1.5–2.7 cm, glabrous, secondaryveins 5- or 6-paired, transverse veins distinct, base cuneate,margins serrulate. Inflorescence unknown. New shoots May.● 1200–1500 m. S Sichuan.56. Yushania pachyclada T. P. Yi, J. Bamboo Res. 5(1): 54.1986.粗 枝 玉 山 竹 cu zhi yu shan zhuRhizome neck 15–35 cm. Culms 1–2 m, 3–10 mm indiam.; internodes 20–30 cm, grooved or flattened abovebranches, glabrous, initially with white powdery ring beloweach node, nearly solid; supra-nodal ridges weakly prominent;sheath scar prominent. Branches 1 at lower nodes, 2–5 at uppernodes. Culm sheaths persistent, narrowly rounded, leathery,usually glabrous, margins glabrous; auricles and oral setaeabsent; ligule truncate or arcuate, ca. 1 mm, glabrous; bladeconical or linear-lanceolate, glabrous, revolute. Leaves 2–5 perultimate branch; sheath glabrous; auricles and oral setae absent;ligule truncate, ca. 1 mm, glabrous; blade lanceolate, 6–14 ×1.1–2 cm, glabrous, secondary veins 4–6-paired, transverseveins slightly distinct, base cuneate, margins serrulate. Inflorescenceunknown. New shoots Jun.● 1700–1800 m. S Sichuan, NE Yunnan.57. Yushania niitakayamensis (Hayata) P. C. Keng, Acta Phytotax.Sin. 6: 357. 1957.玉 山 竹 yu shan zhuArundinaria niitakayamensis Hayata, Bot. Mag. (Tokyo)21: 49. 1907; A. oiwakensis Hayata; Indocalamus niitakayamensis(Hayata) Nakai; I. oiwakensis (Hayata) Nakai; Pleioblastusniitakayamensis (Hayata) Ohki; P. oiwakensis (Hayata)Ohki; Pseudosasa oiwakensis (Hayata) Makino; Sasa niitakayamensis(Hayata) E. G. Camus; S. niitakayamensis var.microcarpa E. G. Camus; Sinarundinaria niitakayamensis (Hayata)P. C. Keng.Rhizome neck ca. 30 cm. Culms 1–4 m, 5–20 mm indiam.; internodes 10–30 cm, grooved or flattened abovebranches, initially setulose, becoming glabrous and waxy;supra-nodal ridge level; sheath scar with persistent remains of