1. Family: Poaceae Barnhart
    1. Genus: Polytoca R.Br.
      1. Polytoca cyathopoda (F.Muell.) F.M.Bailey

        This species is accepted, and its native range is New Guinea to N. Australia.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes elongated; scaly. Culms erect; reed-like; 200-300 cm long. Culm-internodes channelled. Culm-nodes glabrous, or pubescent. Lateral branches lacking, or sparse. Leaves cauline. Ligule a ciliolate membrane; 1-1.5 mm long. Leaf-blades 40-60 cm long; 10-30 mm wide. Leaf-blade margins cartilaginous; spinulose. Leaf-blade apex acuminate.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; enclosed. Racemes 1; single; 6-12 cm long; bearing few fertile spikelets. Rhachis fragile at the nodes. Rhachis internodes linear; bearing a sterile companion laterally. Rhachis internode tip transverse; crateriform. Sexes segregated; on bisexual branches; with male above. Spikelets embracing internode; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Male spikelets sessile and pedicelled; 2 in a cluster. Pedicels of companion sterile spikelets fused to internode; united wholly.
    Sterile
    Companion sterile spikelets rudimentary; 1 mm long.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate; with central peg; attached transversely.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 15 mm long; 1 length of spikelet; indurate; pallid; 2-keeled; keeled above; keeled laterally; winged on keel; winged above. Lower glume surface not waisted. Lower glume apex obtuse. Upper glume ovate; cartilaginous. Upper glume apex cuspidate.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate; hyaline. Fertile florets female. Fertile lemma lanceolate; 8-12 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea 1 length of lemma; hyaline.
    Flowers
    Anthers 3; 2.5-5 mm long.
    Spikelets
    Male spikelets distinct from female; with pedicels fused to rhachis; 2 flowered; lanceolate; 12 mm long. Male spikelet glumes 2. Male spikelet lemma 0-3 -veined. Companion sterile spikelets rudimentary; 1 mm long. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 15 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate; with central peg; attached transversely.
    Male
    Male spikelets distinct from female; with pedicels fused to rhachis; 2 flowered; lanceolate; 12 mm long. Male spikelet glumes 2. Male spikelet lemma 0-3 -veined.
    Distribution
    Asia-tropical: Papuasia. Australasia: Australia.
    Reference
    Andropogoneae. Tothill.

    Images

    Distribution

    Native to:

    New Guinea, Northern Territory, Queensland, Western Australia

    Polytoca cyathopoda (F.Muell.) F.M.Bailey appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    O'Shanesy [s.n.], Queensland Chionachne cyathopoda K001057009
    Mueller, F.J.H. von [s.n.], Northern Territory Chionachne cyathopoda K001057010

    First published in Queensl. Fl. 6: 1849 (1902)

    Not accepted by

    • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Chionachne cyathopoda.]

    Literature

    Kew Backbone Distributions
    • Henty, E.E. (1969). A manual of the grasses of New Guinea: 1-215. Division of Botany, Dpt. of Forests, LAE, New Guinea.

    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