Bambusa chungii McClure

First published in Lingnan Sci. J. 15: 639 (1936)
This species is accepted
The native range of this species is S. China to Vietnam. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1200-1800 cm long; 30-50 mm diam.; woody; without nodal roots. Culm-internodes terete; thin-walled; 40-100 cm long; glaucous. Culm-nodes pubescent. Lateral branches dendroid. Branch complement many; with subequal branches. Culm-sheaths yellow; pubescent; with appressed hairs; auriculate; setose on shoulders. Culm-sheath ligule fimbriate, or ciliolate, or ciliate. Culm-sheath blade narrowly ovate; reflexed; pubescent. Leaves cauline. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Collar with external ligule. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath. Leaf-blades linear, or lanceolate; 10-20 cm long; 20-35 mm wide. Leaf-blade venation with 10-12 secondary veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 10-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Fertile
Spikelets comprising 4-5 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 10-20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; comprising 1-2 gemmiferous bracts; 1-2 empty glumes.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 9 mm long; without keel; 9-13 -veined. Lemma apex obtuse. Palea 1 length of lemma. Palea keels eciliate. Palea apex truncate, or obtuse. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; veined; ciliate. Anthers 6; anther tip smooth. Stigmas 2-3. Ovary umbonate; pubescent on apex.
Distribution
Asia-temperate: China.
Reference
Bambuseae. McClure 1996.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0