1. Family: Poaceae Barnhart
    1. Genus: Mnesithea Kunth
      1. Mnesithea annua (Lazarides) de Koning & Sosef

        This species is accepted, and its native range is E. New South Wales.

    [GB]
    Habit
    Annual. Culms robust; 150-200 cm long; 5-10 mm diam.; with prop roots. Culm-nodes glabrous. Ligule an eciliate membrane; 1-2 mm long. Leaf-blade base broadly rounded. Leaf-blades lanceolate; 30-60 cm long; 20-45 mm wide; dark green. Leaf-blade margins spinulose. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence composed of racemes; terminal, or terminal and axillary. Peduncle widened at apex. Racemes 1; single; unilateral; 5-7.3 cm long. Rhachis fragile at the nodes; flattened. Rhachis internodes oblong; 5 mm long; adherent to upper glume of sessile spikelet. Rhachis internode tip transverse; crateriform; with simple rim. Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels fused to internode; united wholly; oblong; flattened; 5 mm long; tip rectangular.
    Sterile
    Companion sterile spikelets well-developed; male; lanceolate; 7.5-8 mm long; longer than fertile; separately deciduous. Companion sterile spikelet glumes coriaceous; keeled; 5-7 -veined; obtuse. Companion sterile spikelet lemmas 2; enclosed by glumes.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 4.5-5.5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; 1 mm long; glabrous; base truncate; with central boss; attached transversely. Companion sterile spikelets well-developed; male; lanceolate; 7.5-8 mm long; longer than fertile; separately deciduous. Companion sterile spikelet glumes coriaceous; keeled; 5-7 -veined; obtuse. Companion sterile spikelet lemmas 2; enclosed by glumes.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 4.5-5.5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; 1 mm long; glabrous; base truncate; with central boss; attached transversely.
    Glume
    Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume obovate; 1 length of spikelet; indurate; 2-keeled; keeled laterally; keeled obtusely; winged on keel; winged narrowly; winged above; 11 -veined. Lower glume surface rugose. Lower glume apex truncate, or obtuse. Upper glume oblong; indurate; without keels; 3 -veined. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic, or oblong; hyaline. Fertile lemma oblong; hyaline; without keel; 2-3 -veined. Palea 0.9 length of lemma.
    Flowers
    Anthers 3; 2 mm long.
    Distribution
    Australasia: Australia.
    Reference
    Andropogoneae. Lazarides.

    Images

    Distribution

    Native to:

    New South Wales

    Mnesithea annua (Lazarides) de Koning & Sosef appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Aug 18, 1986 Kenneally, K.F. [8219], Western Australia Heteropholis annua K000482914
    Kenneally, K.F. [8219], Western Australia Heteropholis annua K001057380 isotype

    First published in Blumea 31: 295 (1986)

    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 Heteropholis annua.]

    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 2019. 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 2019. 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