1. Family: Poaceae Barnhart
    1. Coelachyrum Hochst. & Nees

      1. This genus is accepted, and its native range is Africa, Arabian Peninsula, Indian Subcontinent.

    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Annuals or perennials, usually stoloniferous; leaf-blades linear to lanceolate, flat; ligule membranous, lacerate or ciliate
    Inflorescences
    Inflorescence either an open panicle or composed of several loose to dense racemes or spikes on a central axis
    Spikelets
    Spikelets several-flowered, broadly elliptic to ovate, subsessile or pedicelled, disarticulating between the florets; glumes 1-several-nerved, rounded or lightly keeled, subequal to unequal, shorter than the lemmas, persistent; lemmas 3-nerved, elliptic to ovate, rounded on the back, membranous or somewhat scarious, glabrous or appressed pilose on the back and glabrous or villous along the lower part of the margins, sometimes also villous along the midnerve, the tip obtuse, sometimes mucronate; palea glabrous or villous along the keels, sometimes pilose on the flaps
    Fruits
    Grain broadly elliptic to subrotund, concave on the hilar side, rugose, enclosed within a free hyaline pericarp.
    [GB]

    nonem

    Habit
    Annual (3), or perennial (3). Stolons absent (5), or present (2). Culms erect (1/5), or geniculately ascending (2/5), or decumbent (4/5); 5-36.25-100 cm long; rooting from lower nodes (1/1). Lateral branches ample (1/1). Ligule an eciliate membrane (5), or a ciliolate membrane (1). Leaf-blades linear, or lanceolate (1).
    Inflorescences
    Inflorescence a panicle (1), or composed of racemes (5). Panicle open (1/1). Racemes digitate (2/5), or borne along a central axis (3/5); not compacted (4/5), or in a head (1/5); erect (2/5), or ascending (3/5); linear (4/5), or oblong (1/5); unilateral (5/5); bearing few fertile spikelets (1/5), or many spikelets (4/5); bearing 2-9 fertile spikelets on each (1/1). Rhachis angular (2/4), or subterete (2/4). Spikelet packing broadside to rhachis (5/5); crowded (1/5), or contiguous (4/5); 1 -rowed (1/4), or 2 -rowed (4/4). Spikelets ascending (1/1); solitary. Fertile spikelets sessile (3), or pedicelled (3). Pedicels linear (1/3), or oblong (2/3).
    Spikelets
    Spikelets comprising 4 fertile florets (1), or 5 fertile florets (2), or 6 fertile florets (4), or 7-8 fertile florets, or 9-10 fertile florets (5), or 11-12 fertile florets (3), or 13-14 fertile florets (2), or 15-16 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (2), or ovate (4); laterally compressed; 2.5-5.108-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 4 fertile florets (1), or 5 fertile florets (2), or 6 fertile florets (4), or 7-8 fertile florets, or 9-10 fertile florets (5), or 11-12 fertile florets (3), or 13-14 fertile florets (2), or 15-16 fertile florets (1); with diminished florets at the apex. Spikelets elliptic (2), or ovate (4); laterally compressed; 2.5-5.108-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet. Lower glume lanceolate (2), or elliptic (4), or ovate (2); 0.66-0.8392-1 length of upper glume; membranous (5), or herbaceous (1); without keels (5), or 1-keeled (2); 1 -veined (4), or 2 -veined (1), or 3 -veined (3), or 4 -veined (1). Lower glume lateral veins absent (2), or distinct (4); without ribs (3/4), or ribbed (1/4). Lower glume apex obtuse (4), or acute (2), or acuminate (1); muticous (5), or mucronate (1). Upper glume elliptic (4), or oblong (2), or ovate (2); 0.75-0.975-1.3 length of adjacent fertile lemma; membranous (5), or herbaceous (1); without keels (5), or 1-keeled (2); 1-2 -veined (1), or 3 -veined, or 4 -veined (3), or 5-7 -veined (1). Upper glume lateral veins without ribs (5), or ribbed (1). Upper glume apex obtuse (4), or acute (2), or acuminate (1); muticous (3), or mucronate (3), or awned (1); 1 -awned (1/1).
    Florets
    Fertile lemma elliptic (1), or ovate (4), or orbicular (1); membranous (5), or herbaceous (1); without keel (3), or keeled (3); 3 -veined, or 5 -veined (1). Lemma midvein eciliate (4), or ciliate (2). Lemma lateral veins obscure (1/3), or prominent (1/3), or thickened (1/3); without ribs (5), or ribbed (1). Lemma surface smooth (5), or asperulous (1); glabrous (5), or puberulous (1), or pubescent (1); with simple hairs (1/2), or clavate hairs (1/2). Lemma margins eciliate (4), or ciliate (2). Lemma apex truncate (3), or obtuse (5), or acute (1), or cuspidate (1); muticous (3), or mucronate (5). Palea 0.5-0.8333-1 length of lemma; 2 -veined. Palea keels smooth (5), or scaberulous (1); eciliate (2), or ciliolate (3), or ciliate (1). Palea surface glabrous, or pubescent (1). Apical sterile florets resembling fertile though underdeveloped.
    Fruits
    Caryopsis with free soft pericarp; ellipsoid (2), or oblong (1), or ovoid (1), or orbicular (1), or reniform (1); flattened; concavo-convex; smooth (1), or granular (1), or rugose (5). Embryo 0.5-0.575-0.7 length of caryopsis.
    Distribution
    Africa (5), or Temperate Asia (4), or Tropical Asia (2).
    [FZ]

    Gramineae, T. Cope. Flora Zambesiaca 10:2. 1999

    Inflorescences
    Inflorescence rarely a panicle, more often of open or dense racemes, these disposed along an axis or digitate, the spikelets subsessile or pedicelled.
    Spikelets
    Spikelets several–many-flowered, lightly laterally compressed, disarticulating above the glumes and between the florets; glumes 1–3-nerved, dorsally rounded or lightly keeled, subequal to unequal, persistent, shorter than the lemmas; lemmas 3(5)-nerved, membranous to coriaceous, elliptic to ovate, sometimes deeply concave, lightly keeled at first but becoming dorsally broadly rounded as the caryopsis expands, glabrous or appressed-pilose on the flanks, glabrous or villous on the margins and sometimes also on the midnerve, obtuse, sometimes mucronate.
    Fruits
    Caryopsis broadly elliptic to subrotund, strongly flattened, concavo-convex, smooth or ± rugulose, the pericarp free.
    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Habit
    Perennial
    Leaves
    Leaf-blades linear; ligule membranous
    Inflorescences
    Inflorescence composed of several secund spike-like racemes spaced along a central axis
    Spikelets
    Spikelets several–many-flowered, lightly laterally compressed, subsessile, biseriate, disarticulating between the florets; glumes 1-nerved or rarely with up to 3 additional nerves, rounded or lightly keeled on the back, membranous, persistent, shorter than the lemmas; lemmas deeply concave, 3-nerved or rarely 5-nerved with a second weakly developed lateral nerve on each side, the lateral nerves slightly shorter than the lemma, membranous, glabrous and lightly keeled above the middle, becoming cartilaginous, rounded on the back and appressed pilose with club-shaped hairs in the lower half; palea ciliolate on the keels
    Fruits
    Grain broadly elliptic, strongly dorso-ventrally flattened, enclosed within a free hyaline pericarp.

    Images

    Distribution

    Native to:

    Algeria, Bangladesh, Chad, Djibouti, Egypt, Eritrea, Ethiopia, Gulf States, India, Kenya, Mali, Mauritania, Niger, Nigeria, Oman, Pakistan, Saudi Arabia, Somalia, Sri Lanka, Sudan, Tanzania, Yemen

    Coelachyrum Hochst. & Nees appears in other Kew resources:

    First published in Linnaea 16: 221 (1842)

    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
    • in Linnaea 16: 221 (1842).
    Flora Zambesiaca
    • in Linnaea 16: 221 (1842).
    Flora of Tropical East Africa
    • in Linnaea 16: 221 (1842)

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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 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