1. Tribe BAMBUSEAE - China

POACEAE 121curved, 5–10 mm; ligule arcuate, ca. 1.5 mm, scabrid, ciliolate;blade triangular-lanceolate, base slightly constricted, 2/3–3/4 aswide as sheath apex, margin serrulate, apex acuminate. Leaves(2–)4 or 5(–7) per ultimate branch; sheath setose, glaucous,margins ciliolate; auricles absent; oral setae 7–10; ligule veryshort, slightly scabrous; blade oblong-lanceolate, 8–30 × 2–3.3cm, abaxially partially densely hairy, secondary veins (5–)7–10-paired, base broadly cuneate, margins serrulate, apex acute.Inflorescence unknown. New shoots May.● Plains. Zhejiang (Hangzhou).This species is possibly a synonym of Pseudosasa hindsii.18. Pseudosasa magilaminaris B. M. Yang, J. Hunan Sci.Technol. Univ. 1(1): 111. 1985.江 永 茶 秆 竹 jiang yong cha gan zhuCulms 2–5 m, 5–12 mm in diam.; internodes terete, 20–32cm, pith spongy; nodes weakly prominent, sheath base persistent,corky, glaucous, pilose; intranode ca. 9 mm. Culm sheathspersistent or late deciduous, brown, shorter than internodes,fragile, densely setose; auricles falcate; oral setae ca. 5 mm; ligulearcuate, ca. 2 mm; blade triangularly ovate-lanceolate, abaxiallyslightly hairy at base. Leaves 3–7 per ultimate branch;blade elliptic-lanceolate 12–18 × 9–2.3 cm, abaxially slightlyhairy, secondary veins 6- or 7-paired, base broadly cuneate,margins serrulate, apex acute. Inflorescence unknown.● Slopes of hills; low elevations. S Hunan.This species is possibly a synonym of Pseudosasa hindsii.Taxa incertae sedisPseudosasa membraniligulata B. M. Yang (Bamboo Res. 1989(2):3. 1989) was described from Hunan. It is difficult to decide the identityof this species because the type specimen (B. M. Yang 06537, HNNU) isabnormal. According to G. Y. Yang’s Ph.D. dissertation, it does notbelong to Pseudosasa.Pseudosasa pubicicatrix W. T. Lin (J. Bamboo Res. 13(2): 22.1994, “pubioicatrix”) was described from Hainan. According to G. Y.Yang’s Ph.D. dissertation, the holotype specimen (Huang Quan 0002,CANT) is a mixture, which probably includes elements of three differentgenera: the culm sheaths look like P. hindsii, whereas the culmslook like Indocalamus, and the leafy branches are Bambusa.24. PLEIOBLASTUS Nakai, J. Arnold Arbor. 6: 145. 1925.Nipponocalamus Nakai; Polyanthus C. H. Hu.苦 竹 属 ku zhu shuZhu Zhengde ( 朱 政 德 Chu Cheng-de); Chris StapletonSmall, shrubby or arborescent bamboos, spreading and loosely clumped. Rhizomes leptomorph. Culms pluricaespitose, suberectto drooping, 0.5–8 m tall, 0.1–4 cm thick; internodes slightly grooved above branches, glabrous, smooth or rough, pruinose belowlevel nodes. Branch buds tall, prophylls 2-keeled, initially closed at front, on small promontory. Branches erect, initially 1–9 pernode, long, subequal, basal nodes compressed, laterals arising from basal nodes, some lateral branches lacking subtending sheathsand replicated, sheaths and prophylls very persistent, papery, ± glabrous. Culm sheaths persistent to very persistent, nearly leathery;blade deciduous, often reflexed. Leaf sheaths persistent; blade small to medium-sized, without substantial winter necrosis of margins,arrangement random or ± distichous, transverse veins distinct. Inflorescence open, racemose to paniculate, branching subtended byvery small bracts or hairs, often with pulvini; spikelets exserted on long, delicate pedicels. Spikelets 1–4 cm, disarticulating belowflorets, with 4–8 florets. Glumes 1 or 2(–5), much shorter than first lemma, delicate, basally loose and usually subtending vestigialbuds. Lemma to 1 cm. Anthers 3. Stigmas 3. Fruit a caryopsis.About 40 species: China, Japan, Vietnam; 17 species (15 endemic, two introduced) in China.In addition to the species treated below, Pleioblastus albosericeus W. T. Lin (J. S. China Agric. Univ. 11(3): 47. 1990, “albo-sericeus”) wasdescribed from sterile material from Guangdong (Fogang). In the protologue it was compared with P. intermedius. Pleioblastus angustatus W. T. Lin,(J. Bamboo Res. 13(2): 18. 1994) was described from cultivated material from Guangdong (Guangzhou). In the protologue it was compared with P.amarus. Pleioblastus patellaris W. T. Lin & Z. M. Wu (J. S. China Agric. Univ. 14(3): 113. 1993) was also described from Guangdong and is possiblya species of Indocalamus.1a. Culms short, 0.1–1 m; leaf blades variegated or closely distichous (natives of Japan, introduced in China forornamental purposes).2a. Leaf blade 6–15 × 0.8–1.4 cm, both surfaces white pubescent, especially abaxially, with yellow or whitestripes ...................................................................................................................................................................... 16. P. fortunei2b. Leaf blade 3–7 × 0.3–0.8 cm, both surfaces glabrous, not striped; culms 20–40 cm ......................................... 17. P. distichus1b. Culms to more than 1 m; leaf blades not variegated, separated, not distichous (endemic to China).3a. Culm sheaths without conspicuous auricles, oral setae absent or scarce and inconspicuous.4a. Culm sheaths ± glossy, usually without setae, hairs, marginal cilia, or powder.5a. Culm sheaths brown-red, with darker spots, oily-glossy ........................................................................ 1. P. maculatus