1. Family: Poaceae Barnhart
    1. Ichnanthus P.Beauv.

      1. This genus is accepted, and its native range is Tropics & Subtropics.

    [GB]

    nonem

    Habit
    Annual (7), or perennial (25). Rhizomes absent (24), or short (1), or elongated (6). Stolons absent (30), or present (1). Culms erect (14/28), or geniculately ascending (6/28), or decumbent (9/28), or prostrate (2/28), or rambling (6/28), or scandent (2/28); robust (2/3), or slender (1/3); 6-115.9-1000 cm long; firm (30), or woody (2); with prop roots (1/9), or rooting from lower nodes (9/9). Lateral branches lacking (2/9), or sparse (4/9), or ample (3/9). Leaf-sheath auricles absent (27), or erect (4). Ligule an eciliate membrane (2), or a ciliolate membrane (5), or a ciliate membrane (19), or a fringe of hairs (5). Leaf-blade base without a false petiole (22), or with a brief petiole-like connection to sheath (9), or with a false petiole (4). Leaf-blades linear (5), or lanceolate (28), or elliptic (3), or oblong (4), or ovate (6); membranous (4), or herbaceous (26), or coriaceous (1); stiff (3), or firm (27), or flaccid (1). Leaf-blade midrib indistinct (1/1). Leaf-blade venation without cross veins (3), or with obscure cross veins (1), or with distinct cross veins (27). Leaf-blade margins cartilaginous (3/3).
    Inflorescences
    Inflorescence a panicle (26), or composed of racemes (8); terminal (27), or terminal and axillary (7); exserted (30), or embraced at base by subtending leaf (2). Panicle open (26/26). Primary panicle branches not whorled (20/26), or whorled at lower nodes (2/26), or whorled at most nodes (4/26). Racemes borne along a central axis (8/8); appressed (1/8), or erect (1/8), or ascending (7/8); unilateral (1/1). Rhachis angular (1/1). Spikelet packing crowded (3/8), or lax (3/8), or distant (2/8). Spikelets appressed (4/27), or ascending (23/27); in pairs. Fertile spikelets sessile (1), or sessile and pedicelled (16), or pedicelled (14); 2 in the cluster (30/30). Pedicels filiform (25/26), or oblong (1/26).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension (30/30). Spikelets lanceolate (16), or elliptic (7), or oblong (7), or ovate (4); laterally compressed; 2-4.648-10 mm long; falling entire. Floret callus without wings (1), or winged (30); with apical wings adnate to lemma (18/30), or apical wings shrivelled to concave scars (9/30), or apical wings reduced to convex swellings (3/30).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension (30/30). Spikelets lanceolate (16), or elliptic (7), or oblong (7), or ovate (4); laterally compressed; 2-4.648-10 mm long; falling entire. Floret callus without wings (1), or winged (30); with apical wings adnate to lemma (18/30), or apical wings shrivelled to concave scars (9/30), or apical wings reduced to convex swellings (3/30).
    Glume
    Glumes distichous (30), or lateral (1); shorter than spikelet (2), or reaching apex of florets; thinner than fertile lemma; parallel to lemmas (29), or gaping (2). Lower glume lanceolate (16), or elliptic (1), or oblong (3), or ovate (16), or obovate (2); clasping (1/1); membranous (1), or herbaceous (29), or cartilaginous (1); 1-keeled; 1-2 -veined (3), or 3 -veined (28), or 4 -veined (7), or 5 -veined (9), or 6 -veined (1), or 7-9 -veined (2). Lower glume lateral veins absent (3), or distinct; without ribs (23), or ribbed (8). Lower glume surface smooth (28), or asperulous (2), or scabrous (2); glabrous (24), or pubescent (2), or pilose (9), or villous (1). Lower glume apex obtuse (3), or acute (16), or acuminate (4), or attenuate (4), or setaceously attenuate (2), or cuspidate (5), or caudate (1); muticous (29), or awned (2). Upper glume linear (1), or lanceolate (13), or elliptic (6), or oblong (7), or ovate (11); 0.9-0.95-1 length of adjacent fertile lemma; herbaceous (30), or cartilaginous (1); with undifferentiated margins (30), or hyaline margins (1); without keels (3/30), or 1-keeled (27/30); 3 -veined (2), or 4 -veined (1), or 5 -veined (26), or 6 -veined (7), or 7 -veined (11), or 8-9 -veined (2), or 10-11 -veined (1). Upper glume lateral veins without ribs (24), or ribbed (7). Upper glume surface smooth (30), or asperulous (1), or scabrous (1); glabrous (23), or pubescent (3), or pilose (9), or villous (2); with simple hairs (12/13), or tubercle-based hairs (1/13). Upper glume apex obtuse (4), or acute (16), or acuminate (11), or attenuate (1), or setaceously attenuate (1), or cuspidate (2), or caudate (1).
    Florets
    Basal sterile florets male (4), or barren (27); with palea. Lemma of lower sterile floret lanceolate (8/30), or elliptic (3/30), or oblong (16/30), or ovate (10/30); cartilaginous (1/1); 3 -veined (1), or 5 -veined (27), or 6 -veined (6), or 7 -veined (9), or 8-11 -veined (1); without ribs (24), or ribbed (7); obtuse (4/30), or acute (18/30), or acuminate (8/30), or setaceously attenuate (1/30), or cuspidate (1/30), or caudate (1/30). Fertile lemma lanceolate (6/30), or elliptic (16/30), or oblong (9/30), or ovate (2/30), or obovate (1/30); dorsally compressed (30/30); chartaceous (1), or cartilaginous (1), or indurate (29); without keel (30/30); 5 -veined (1/1). Lemma lateral veins obscure (4/4). Lemma margins involute; eciliate (30), or ciliolate (2). Lemma apex obtuse (9), or acute (21), or acuminate (2); without ornament (30), or pubescent (1). Palea not rolled (1), or involute (30); cartilaginous (1), or indurate (30).
    Flowers
    Lodicules 2 (23/23); fleshy (23/23). Anthers 3 (28/28).
    Fruits
    Caryopsis with adherent pericarp; oblong (1/1); dorsally compressed (1/1). Hilum elliptic (1/1).
    Distribution
    Africa (1), or Temperate Asia (1), or Tropical Asia (1), or Australasia (1), or North America (6), or South America.

    Images

    Distribution

    Native to:

    Andaman Is., Argentina Northeast, Argentina Northwest, Assam, Bangladesh, Belize, Bolivia, Borneo, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Cameroon, China South-Central, China Southeast, Colombia, Costa Rica, Cuba, Dominican Republic, East Himalaya, Ecuador, El Salvador, French Guiana, Galápagos, Guatemala, Gulf of Guinea Is., Guyana, Hainan, Haiti, Honduras, India, Jamaica, Jawa, Laos, Leeward Is., Liberia, Malaya, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Myanmar, Nansei-shoto, Nepal, Netherlands Antilles, New Guinea, Nicaragua, Panamá, Paraguay, Peru, Philippines, Puerto Rico, Queensland, Sierra Leone, Sri Lanka, Suriname, Taiwan, Thailand, Trinidad-Tobago, Uruguay, Venezuela, Venezuelan Antilles, Vietnam, Windward Is.

    Ichnanthus P.Beauv. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Feb 1, 2014 Amorim, A.M. [780], Brazil K001072227
    Amorim, A.M. [780], Brazil K001072226

    First published in Ess. Agrostogr.: 56 (1812)

    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.

    Literature

    Flora of West Tropical Africa
    • F.T.A. 9: 743 (1920).
    • Ess. Agrost. 56 (1812)

    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 2018. 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 2018. 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