1. Family: Poaceae Barnhart
    1. Arundoclaytonia Davidse & R.P.Ellis

      1. This genus is accepted, and its native range is Brazil.

    [GB]

    nonem

    Habit
    Perennial. Culms erect; 200-300 cm long; firm, or woody; with aerial roots from the nodes. Culm-internodes abbreviated and closely packed at the base. Lateral branches sparse. Ligule a ciliate membrane. Leaf-blade midrib indistinct.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Synflorescence compound; paniculate. Inflorescence comprising only a few spikelets; terminal and axillary; subtended by a spatheole. Sexes segregated; with male above. Spikelets clustered at each node. Fertile spikelets sessile and pedicelled. Male spikelets sessile and pedicelled.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; dorsally compressed; 7-19 mm long; falling entire.
    Glume
    Glumes shorter than spikelet. Lower glume ovate; 0.6-0.7 length of upper glume; herbaceous; 1-keeled; 1-3 -veined. Lower glume apex acute. Upper glume ovate; 0.4 length of adjacent fertile lemma; herbaceous; without keels; 3-5 -veined. Upper glume lateral veins without cross-veins, or with cross-veins. Upper glume apex obtuse, or acute.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate; herbaceous; 7-9 -veined; acute. Fertile florets female. Fertile lemma ovate; herbaceous; keeled; 9-11 -veined. Lemma lateral veins prominent. Lemma surface pilose. Lemma apex acute. Palea tightly convolute around flower; 1.3-2.1 length of lemma; spongy; 9-13 -veined. Palea keels approximate. Apical sterile florets 1 in number; barren; linear, or lanceolate.
    Flowers
    Lodicules absent. Anthers 2. Stigmas 2.
    Fruits
    Caryopsis fusiform. Embryo 0.3-0.4 length of caryopsis. Hilum elliptic.
    Spikelets
    Male spikelets distinct from female; elliptic, or oblong. Male spikelet glumes 2. Spikelets comprising 1 basal sterile florets; 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; dorsally compressed; 7-19 mm long; falling entire.
    Male
    Male spikelets distinct from female; elliptic, or oblong. Male spikelet glumes 2.
    Distribution
    South America.

    Images

    Distribution

    Native to:

    Brazil North, Brazil Northeast

    Arundoclaytonia Davidse & R.P.Ellis appears in other Kew resources:

    First published in Ann. Missouri Bot. Gard. 74: 479 (1987)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    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 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