1. Family: Poaceae Barnhart
    1. Genus: Oldeania Stapleton
      1. Oldeania humbertii (A.Camus) D.Z.Li, Y.X.Zhang & Haev.

        This species is accepted, and its native range is Madagascar.

    [GB]
    Habit
    Perennial. Culms erect; 600-800 cm long; woody. Culm-internodes terete; thin-walled. Lateral branches dendroid. Leaf-sheath oral hairs ciliate; 4-8 mm long. Ligule an eciliate membrane; truncate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 7-15 cm long; 10-12 mm wide; coriaceous; glaucous. Leaf-blade venation with 8-10 secondary veins; with distinct cross veins. Leaf-blade surface glabrous; hairless except near base. Leaf-blade margins scaberulous. Leaf-blade apex attenuate.
    Inflorescences
    Inflorescence a panicle. Panicle 12-20 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 13-18 mm long.
    Spikelets
    Spikelets comprising 5-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 30-55 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 7-8 mm long; pubescent.
    Fertile
    Spikelets comprising 5-6 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 30-55 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 7-8 mm long; pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6 mm long; chartaceous; without keels; 3 -veined. Lower glume margins ciliate. Lower glume apex acute. Upper glume lanceolate; 7-8 mm long; chartaceous; without keels; 7 -veined. Upper glume apex acute; mucronate.
    Florets
    Fertile lemma oblong, or ovate; 11.5 mm long; chartaceous; without keel; 9 -veined. Lemma surface pilose; hairy below. Lemma apex acute. Palea 12 mm long; 2 -veined. Palea surface puberulous. Palea apex truncate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 3; ciliate. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp; oblong; apex unappendaged.
    Distribution
    Africa: western Indian ocean.
    Reference
    Bambuseae. Camus 1996.

    Images

    Distribution

    Native to:

    Madagascar

    Oldeania humbertii (A.Camus) D.Z.Li, Y.X.Zhang & Haev. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dransfield, S. [SD1353], Madagascar Arundinaria ambositrensis K000795285
    Humbert, H. [3750], Madagascar Arundinaria humbertii K000345512 Unknown type material
    Humbert, H. [4868], Madagascar Arundinaria humbertii K000345513

    First published in J. Syst. Evol. 55: 460 (2017)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    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 Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0