Dendrocalamus membranaceus Munro

First published in Trans. Linn. Soc. London 26: 149 (1868)
This species is accepted
The native range of this species is Bangladesh to China (S. Yunnan) and Indo-China. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1000-1800 cm long; 60-100 mm diam.; woody. Culm-internodes terete. Lateral branches dendroid. Branch complement several. Culm-sheaths 7-15 cm long; coriaceous; hispid; with dark brown hairs; auriculate; with 10 mm high auricles; with 20 mm wide auricles; setose on shoulders; shoulders with 10-15 mm long hairs. Culm-sheath ligule ciliolate. Culm-sheath blade ovate; 2.5-3.5 cm long; acuminate. Leaf-sheaths hispid. Leaf-sheath oral hairs setose; 10 mm long. Leaf-sheath auricles falcate. Ligule a ciliolate membrane. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath; petiole 1-1.2 cm long. Leaf-blades lanceolate, or oblong, or ovate; 20-35 cm long; 40-60 mm wide. Leaf-blade venation with 24-36 secondary veins. Leaf-blade surface smooth; glabrous. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in globose clusters; 0.5-0.75 cm long; dense; glabrous on internodes; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between branches. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.
Fertile
Spikelets comprising 2-3 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 4-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes two; persistent; shorter than spikelet. Lower glume ovate; 3 mm long. Upper glume ovate; 3.5 mm long; chartaceous; without keels. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 3-4 mm long; chartaceous; keeled. Lemma apex acute; muticous, or mucronate. Palea oblong; 2-keeled but the uppermost without keels. Palea keels ciliolate.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 6; anther tip apiculate. Filaments united in a tube. Stigmas 1; pubescent. Ovary umbonate; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ovoid.
Distribution
Asia-temperate: China. Asia-tropical: India and Indo-China.
Reference
Bambuseae. Gamble 2002.
[GB]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/44392860/44487119

Conservation
LC - least concern
[IUCN]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). 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/
  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 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 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Science Photographs

    • Copyright applied to individual images