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

      1. This genus is accepted, and its native range is Tropical & S. Africa to India, S. Mexico to Tropical America.

    [FZ]

    Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002

    Habit
    Inflorescence a panicle, bearing short racemes appressed to its central axis; racemes dense, fragile, with clavate internodes.
    Spikelets
    Spikelets alike (though pedicelled female and slightly smaller), paired, one sessile, one pedicelled, elliptic, barbate with rufous or tawny hairs from the callus.
    Glume
    Inferior glume chartaceous to coriaceous, broadly convex, copiously ciliate on the margins.
    Florets
    Inferior floret represented by a hyaline lemma.
    Lemma
    Superior lemma entire, awnless; stamens 3.
    [FTEA]

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

    Habit
    Tufted perennials; culm hollow
    Leaves
    Leaf-blades narrow; ligule a short ciliate membrane or a line of hairs
    Inflorescences
    Inflorescence narrow, rufous or tawny, with several racemes ± appressed along the central axis; racemes short, dense, the rhachis fragile and bearing paired, almost similar spikelets, one sessile, the other pedicelled; internodes linear to clavate, usually less than 1/2 the length of the sessile spikelets
    Spikelets
    Sessile spikelet elliptic, bearded from the callus; callus very short, truncate; lower glume chartaceous to coriaceous, broadly rounded on the back; lower floret reduced to a lemma, this lanceolate, hyaline; upper floret hermaphrodite; lemma lanceolate to oblong, shorter than the spikelet, hyaline, awnless; stamens 3 Pedicelled spikelet a little smaller than the sessile, its upper floret ♀
    Sessile
    Sessile spikelet elliptic, bearded from the callus; callus very short, truncate; lower glume chartaceous to coriaceous, broadly rounded on the back; lower floret reduced to a lemma, this lanceolate, hyaline; upper floret hermaphrodite; lemma lanceolate to oblong, shorter than the spikelet, hyaline, awnless; stamens 3
    Pedicelled
    Pedicelled spikelet a little smaller than the sessile, its upper floret ♀
    Fruits
    Caryopsis ellipsoid.
    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (9), or short (1). Culms erect (7/7); 12-81.1-220 cm long. Lateral branches lacking (1/1). Ligule an eciliate membrane (6), or a ciliolate membrane (2), or a ciliate membrane (2), or a fringe of hairs (1). Leaf-blades stiff (1), or firm (9).
    Inflorescences
    Inflorescence composed of racemes. Racemes borne along a central axis; not compacted (6), or in a multilateral false spike (4); appressed (8), or ascending (2); linear, or oblong (7), or ovate (1); bearing few fertile spikelets (1), or many spikelets (9); bearing 2-4 fertile spikelets on each (1/1). Rhachis fragile at the nodes; subterete. Rhachis internodes linear. Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster; the upper smaller. Pedicels linear; tip widened (1/5), or discoid (4/5).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (7), or oblong (2); dorsally compressed; 2.5-4.516-7 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus bearded; base truncate.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (7), or oblong (2); dorsally compressed; 2.5-4.516-7 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus bearded; base truncate.
    Glume
    Glumes reaching apex of florets (4), or exceeding apex of florets (6); firmer than fertile lemma. Lower glume lanceolate (1), or elliptic (7), or oblong (2); chartaceous (2), or cartilaginous (3), or coriaceous (5); without keels; 5-7 -veined (1/1). Lower glume lateral veins obscure (3), or distinct (6), or prominent (1). Lower glume surface flat; smooth (9), or scabrous (1); glabrous (7), or pubescent (1), or pilose (1), or villous (2). Lower glume apex entire (9), or dentate (1); 3 -fid (1/1); truncate (2/7), or obtuse (3/7), or acute (3/7). Upper glume lanceolate (1/6), or elliptic (5/6); chartaceous (2/5), or cartilaginous (1/5), or coriaceous (2/5); 1-keeled (5/5); 5-7 -veined (1/1). Upper glume primary vein eciliate (9), or ciliate (1). Upper glume surface glabrous, or pilose (1). Upper glume apex acute (4/5), or acuminate (1/5).
    Florets
    Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate (6), or oblong (4); hyaline; 0 -veined (6/8), or 2 -veined (2/8); obtuse (1/1), or acute (1/1). Fertile lemma linear (1), or lanceolate (6), or oblong (1), or ovate (3); hyaline; without keel; 0 -veined (9/9). Lemma surface glabrous (9), or puberulous (1); without hair tufts (9), or with conspicuous apical hairs (1). Lemma margins eciliate (1), or ciliolate (1), or ciliate (8). Lemma apex attenuate (1/1). Palea absent or minute.
    Flowers
    Lodicules 2 (1/1). Anthers 3.
    Fruits
    Caryopsis oblong (2/2).
    Distribution
    Africa (3), or Tropical Asia (1), or North America (1), or South America (6).

    Images

    Distribution

    Native to:

    Angola, Argentina Northeast, Belize, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burundi, Cameroon, Cape Provinces, Central African Repu, Colombia, Congo, Costa Rica, Ethiopia, French Guiana, Gabon, Ghana, Guatemala, Guinea, Guyana, Honduras, India, Ivory Coast, Kenya, KwaZulu-Natal, Malawi, Mexico Southeast, Mexico Southwest, Nicaragua, Nigeria, Northern Provinces, Panamá, Paraguay, Peru, Rwanda, Senegal, Suriname, Swaziland, Tanzania, Trinidad-Tobago, Uganda, Uruguay, Venezuela, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Cuba, Dominican Republic, Haiti, Puerto Rico

    Eriochrysis P.Beauv. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Longhi-Wagner, H.M. [8933], Brazil K001106143

    First published in Ess. Agrostogr.: 8 (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: 91 (1917).
    • Ess. Agrost. 8, t. 4, f. 11 (1812)
    Flora Zambesiaca
    • Ess. Agrostogr.: 8, fig. 4/11 (1812).
    Flora of Tropical East Africa
    • Ess. Agrost.: 8, fig. 4/11 (1812)

    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

    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