1. Family: Poaceae Barnhart
    1. Homolepis Chase

      1. This genus is accepted, and its native range is Tropical & Subtropical America.

    [GB]

    nonem

    Habit
    Annual (1), or perennial. Rhizomes absent (4), or short (1). Stolons absent (3), or present (2). Culms erect (2), or geniculately ascending (2), or decumbent (2), or rambling (1); 15-79.5-200 cm long; rooting from lower nodes (1/1). Culm-nodes flush with internodes (2/2). Lateral branches lacking (1/2), or sparse (1/2). Leaves differentiated into sheath and blade (4), or without demarcation between sheath and blade (1). Ligule an eciliate membrane (1), or a ciliolate membrane (2), or a ciliate membrane (1), or a fringe of hairs (1). Leaf-blades linear (3), or lanceolate, or oblong (1); stiff (1), or firm (4).
    Inflorescences
    Inflorescence a panicle. Panicle open (4), or contracted (1). Primary panicle branches not whorled (4), or whorled at lower nodes (1). Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform (2/3), or clavate (1/3).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (3), or obovate (2); dorsally compressed; 2.49-5.899-11 mm long; falling entire. Spikelet callus brief (4), or square (1).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (3), or obovate (2); dorsally compressed; 2.49-5.899-11 mm long; falling entire. Spikelet callus brief (4), or square (1).
    Glume
    Glumes reaching apex of florets (1), or exceeding apex of florets (4); thinner than fertile lemma. Lower glume ovate; 1 length of upper glume; membranous; without keels; 5 -veined (3), or 6 -veined (2), or 7 -veined (3), or 8 -veined (2), or 9 -veined (3). Lower glume lateral veins without ribs (4), or ribbed (1). Lower glume surface glabrous, or villous (1). Lower glume apex acute. Upper glume ovate; membranous; with undifferentiated margins (4), or hyaline margins (1); without keels; 5 -veined (2), or 7 -veined (3), or 8-9 -veined (1). Upper glume surface glabrous (4), or pilose (1). Upper glume apex acute (4), or acuminate (1).
    Florets
    Basal sterile florets male (1), or barren (4); with palea. Lemma of lower sterile floret ovate; membranous; 5 -veined (3), or 6 -veined (2), or 7 -veined (4); acute. Fertile lemma lanceolate (1), or elliptic (2), or oblong (1), or ovate (1); dorsally compressed (1/1); cartilaginous (2), or coriaceous (1), or indurate (2); without keel; 5 -veined (2/2). Lemma surface glabrous, or pubescent (1). Lemma margins flat (4), or involute (1); exposing palea (4), or covering most of palea (1). Lemma apex obtuse (2), or acute (3). Palea not rolled (4), or involute (1); 1 length of lemma; cartilaginous (2), or coriaceous (1), or indurate (2).
    Flowers
    Anthers 3 (1/1).
    Fruits
    Caryopsis with adherent pericarp (2/2); oblong (1/2), or obovoid (1/2). Embryo 0.4-0.45-0.5 length of caryopsis. Hilum linear (3/3); 0.5-0.6667-1 length of caryopsis.
    Distribution
    North America (2), or South America.

    Images

    Distribution

    Native to:

    Argentina Northeast, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, French Guiana, Galápagos, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Suriname, Trinidad-Tobago, Uruguay, Venezuela

    Homolepis Chase appears in other Kew resources:

    First published in Proc. Biol. Soc. Washington 24: 146 (1911)

    Accepted by

    • Zuloaga F.O., Salariato D.L. & Scataglini A. (2018). Molecular phylogeny of Panicum s. str. (Poaceae, Panicoideae, Paniceae) and insights into its biogeography and evolution PLoS ONE 13(2, e0191529): 1-39.
    • 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