1. Family: Poaceae Barnhart
    1. Genus: Lithachne P.Beauv.
      1. Lithachne humilis Soderstr.

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

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short. Culms 15-27 cm long; 5-6 -noded. Culm-internodes terete; thin-walled. Culm-nodes with distinct supra-nodal ridge; glabrous. Leaves cauline; 2-4 per branch. Leaf-sheaths ribbed; glabrous on surface. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 0.2 mm long. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath. Leaf-blades linear, or lanceolate; 3-6 cm long; 4-8 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade surface pubescent; hairy on both sides.
    Inflorescences
    Monoecious; with male and female spikelets in different inflorescences. Inflorescence comprising only a few spikelets; comprising 1 fertile spikelets; axillary; enclosed. Peduncle flattened; 0.8-1 cm long. Spikelets solitary. Fertile spikelets sessile. Male spikelets pedicelled. Male inflorescence terminal; unlike female; of few spikelets (2-6). Male spikelets distinct from female; 1 flowered; linear, or lanceolate; 6 mm long. Male spikelet glumes absent. Male spikelet lemma 3 -veined; awned.
    Sterile
    Basal sterile spikelets represented by a single scale (tiny vestige of male spikelet).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7.3-7.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; truncate. Basal sterile spikelets represented by a single scale (tiny vestige of male spikelet).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7.3-7.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 1 mm long; truncate.
    Glume
    Glumes deciduous; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 7.3-7.7 mm long; 1 length of upper glume; membranous; without keels; 7-9 -veined. Lower glume apex acuminate. Upper glume ovate; 7.3-7.7 mm long; 2-2.5 length of adjacent fertile lemma; membranous; without keels; 5-7 -veined. Upper glume apex acuminate.
    Florets
    Fertile florets female. Fertile lemma obovate; laterally compressed; gibbous; triangular in profile; 3-3.5 mm long; indurate; pallid; shiny; without keel; 5 -veined. Lemma margins involute. Lemma apex truncate. Palea indurate.
    Flowers
    Lodicules 3. Anthers 3; basifixed; 4.2-4.7 mm long. Stigmas 2.
    Fruits
    Caryopsis with adherent pericarp. Hilum linear; 1 length of caryopsis.
    Male
    Male inflorescence terminal; unlike female; of few spikelets (2-6). Male spikelets distinct from female; 1 flowered; linear, or lanceolate; 6 mm long. Male spikelet glumes absent. Male spikelet lemma 3 -veined; awned.
    Distribution
    South America: Mesoamericana.
    Reference
    Olyreae. Soderstrom.

    Images

    Distribution

    Native to:

    Honduras

    Lithachne humilis Soderstr. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 1, 2004 Pohl [12421], Honduras K000433377 isotype

    First published in Brittonia 32: 496 (1980)

    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.
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    Literature

    Kew Backbone Distributions
    • Davidse, G. & al. (eds.) (1994). Flora Mesoamericana 6: 1-543. Universidad Nacional Autónoma de México, México, D.F.

    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