1. Family: Poaceae Barnhart
    1. Genus: Atractantha McClure
      1. Atractantha aureolanata Judz.

        This species is accepted, and its native range is Brazil (Bahia, Espírito Santo).

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; pendulous at the tip; 1000-2000 cm long; 5-20 mm diam.; woody. Culm-internodes terete; solid; dark green, or black; smooth; distally glabrous, or pubescent. Culm-nodes glabrous. Lateral branches dendroid; intravaginal. Branch complement several; with 1 branch dominant; thinner than stem. Culm-sheaths persistent, or deciduous but leaving a persistent girdle; 6-25 cm long; 4-5 times as long as wide; without basal lobes; glabrous; hairy on margins; auriculate; with 3 mm high auricles; setose on shoulders; shoulders with 5-15 mm long hairs. Culm-sheath ligule 0.5-1 mm high. Culm-sheath blade lanceolate; deciduous; reflexed; attenuate. Leaves 5-13 per branch. Leaf-sheaths pubescent. Leaf-sheath oral hairs setose; 2-12 mm long; pale. Leaf-sheath auricles absent, or erect; 1-2 mm long. Ligule an eciliate membrane; 0.2-0.5 mm long. Leaf-blade base cuneate, or broadly rounded; with a brief petiole-like connection to sheath; petiole 0.15-0.35 cm long; petiole glabrous, or pubescent. Leaf-blades lanceolate; 9-17 cm long; 10-20 mm wide; light green and glaucous; discolorous with last colour beneath. Leaf-blade venation without cross veins. Leaf-blade surface glabrous, or puberulous. Leaf-blade apex acute.
    Inflorescences
    Synflorescence bractiferous; fasciculate; 3-5 cm long; lax; with glumaceous subtending bracts and foliaceous subtending bracts; bracts 80-170 mm long; with axillary buds at base of spikelet; prophyllate below lateral spikelets. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension, or with a barren rhachilla extension, or with diminished florets at the apex. Spikelets lanceolate; subterete; 27-36 mm long; falling entire.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension, or with a barren rhachilla extension, or with diminished florets at the apex. Spikelets lanceolate; subterete; 27-36 mm long; falling entire.
    Glume
    Glumes both absent or obscure.
    Florets
    Fertile lemma lanceolate; subterete; 27-36 mm long; coriaceous; dark green, or black; shiny; without keel; 11-15 -veined. Lemma surface smooth, or scaberulous; with distinct germination flap; glabrous. Lemma margins convolute; covering most of palea. Lemma apex setaceously attenuate. Palea tightly convolute around flower; 1 length of lemma; chartaceous. Palea keels contiguous above a sulcus; eciliate, or ciliolate. Palea apex lobed; 2 -fid (lobes 2-4 mm). Rhachilla extension 30 mm long.
    Flowers
    Lodicules 3; 4-5 mm long; membranous; ciliate. Anthers 3; 10-13 mm long; purple. Stigmas 2. Ovary pubescent on apex.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    South America: Brazil.
    Reference
    Bambuseae. Judziewicz 2000.
    Diagnostic
    Branches subtended by green bracts; culm-sheath girdle glabrous.

    Images

    Distribution

    Native to:

    Brazil Northeast, Brazil Southeast

    Atractantha aureolanata Judz. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 2013 Soderstrom, T.R. [2211], Brazil K000947809
    Jan 1, 2006 Soderstrom, T.R. [2148], Bahia K000018855 isotype
    Soderstrom, T.R. [2211], Brazil K000947810

    First published in Ann. Missouri Bot. Gard. 79: 166 (1992)

    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.

    Literature

    Kew Backbone Distributions
    • Forzza, R.C. & al. (2013). Lista de Espécies da Flora do Brasil http://floradobrasil.jbrj.gov.br/2010/.

    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