Chimonobambusa Makino
Shrubby or seldom arborescent bamboos. Rhizomes amphipodium. Culms diffuse or occasionally caespitose, erect; internodes short, usually less than 20 cm long, terete or basal internodes a little square, flat on the branching side, with 2 ridges and 3 shall
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Shrubby or seldom arborescent bamboos. Rhizomes amphipodium. Culms diffuse or occasionally caespitose, erect; internodes short, usually less than 20 cm long, terete or basal internodes a little square, flat on the branching side, with 2 ridges and 3 shallow grooves, nodes on the middle or basal culms with a ring of spine-aerial roots, hollow; nodes flat or prominent. Buds 3, subulate, appressed to culms. Branches 3 per node, branch nodes conspicuously prominent, with plate-shaped joints. Culm leaves deciduous, tardily deciduous, or persistent, sheaths papery or leathery, with spots or not abaxially; auricles absent; blades extremely reduced, less than 1 cm long, erect, triangular, or subulate. Foliage leaves 1–3 (5) per branchlet; sheaths pubescent; blades lanceolate, transverse veins conspicuous. Flowering branches gernimated repeatedly, leafless or with several leaves; flowering branches usually subtended by a set of gradually larger bracts; pseudospikelets solitary or 2–3, usually purple; florets several to many, sessile or terminal pseudospikelets petiolate (internodes); rachilla internodes glabrous or seldom with short pubescence; glumes 1–3, gradually larger; apex of lemma acute, with several ribs; palea 2-keeled, a little
J. Y. Shi · J. Yao Southwest Flower Research and Development Center, Chinese Academy of Forestry, Kunming, China e-mail: [email protected]; [email protected] Y. X. Zhang (*) Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming, China e-mail: [email protected] D. Q. Zhou Kunming University of Science and Technology, Kunming, China e-mail: [email protected] L. S. Ma Sichuan Agricultural University, Dujiangyan, Chengdu, China e-mail: [email protected] © Science Press and Springer Nature Singapore Pte Ltd. 2020 J. Y. Shi et al. (eds.), Illustrated Flora of Bambusoideae in China, https://doi.org/10.1007/978-981-10-8580-2_24-1
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longer or shorter than lemma, glabrous; lodicules 3; stamens 3, filaments free, anthers yellow; ovary glabrous, style 1, very short, splitting into 2 plumose stigmas. Caryopses not fully encircled by lemma, pericarp thick, nut-like. New shoots autumn. Flowering and fruiting summer and autumn. Approximately 28 species, one variety, four forms, all in China, areas of the south of Qinling Mountains and southeast Tibet. Japan, Vietnam, Myanmar (Keng and Wang 1996; Li et al. 2006; Shi et al. 2012; Yi et al. 2008, 2017). Key to Species 1.
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Culm leaves persistent, sheaths thinly papery to papery, longer than internodes; internodes terete, glabrous, or pubescent, except C. leishanensis T. P. Yi with verrucose setae Culm leaves deciduous, papery to thickly papery, shorter than internodes (except several species); internodes quadrate or terete, with verrucose setae, except C. szechuanensis (Rendle) P. C. Keng glabrous Internodes glabrous; culm leaf sheaths with purple-brown to pale spots abaxially, glabrous or with sparse setae, sometimes with dense setae at the base Internodes pubescent initially
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