Bambusa copelandii Gamble

First published in D.Brandis, Indian Trees: 671 (1906)
This species is accepted
The native range of this species is Myanmar. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1500-2000 cm long; 16-19 mm diam.; woody; without nodal roots. Culm-internodes terete; thick-walled; 25-45 cm long; distally pubescent. Culm-nodes flush with internodes. Lateral branches dendroid. Culm-sheaths 38 cm long; 0.9 times as long as wide; pubescent; with yellow hairs; convex at apex. Culm-sheath blade lanceolate. Leaves cauline. Ligule an eciliate membrane. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or ovate; 33-38 cm long; 45-80 mm wide. Leaf-blade venation with distinct cross veins. Leaf-blade surface scabrous; rough abaxially; pubescent; hairy abaxially.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in untidy tufts; 1-4.5 cm between clusters; with spathaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 25-38 mm long; 5-7 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Fertile
Spikelets comprising 4-7 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 25-38 mm long; 5-7 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes two; persistent; similar; shorter than spikelet. Lower glume ovate; 7 mm long; purple; 12 -veined. Lower glume lateral veins with cross-veins. Lower glume surface pubescent. Lower glume margins ciliate. Lower glume apex acute. Upper glume ovate; 12 mm long; purple; 22 -veined. Upper glume lateral veins with cross-veins. Upper glume surface pubescent. Upper glume margins ciliate. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 12 mm long; without keel; 24 -veined. Lemma lateral veins with cross-veins. Lemma surface pubescent. Lemma margins ciliate. Lemma apex acute. Palea 13 mm long; 3-5 -veined. Palea keels ciliate. Palea surface pilose; hairy on margins. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; veined; ciliate. Anthers 6; 8 mm long; yellow; anther tip apiculate. Filaments 15 mm long. Stigmas 1; plumose. Styles 15 mm long. Ovary umbonate; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 1.2-1.6 mm long.
Distribution
Asia-tropical: Indo-China.
Reference
Bambuseae. Tewari 1996.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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