1. Family: Poaceae Barnhart
    1. Genus: Pentameris P.Beauv.
      1. Pentameris chrysurus (K.Schum.) Galley & H.P.Linder

        This species is accepted, and its native range is Tanzania.

    [GB]
    Habit
    Perennial; caespitose. Rhizomes short; scaly. Butt sheaths glabrous, or villous. Glands absent. Culms 100-150 cm long. Leaves mostly basal. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs. Leaf-blades flat, or involute; 20-45 cm long; 4-7 mm wide; stiff. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex acute; hardened.
    Inflorescences
    Inflorescence a panicle. Panicle open; oblong, or ovate; 10-24 cm long; 3-8 cm wide. Panicle branches pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 1-8 mm long.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension, or with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 7.5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension, or with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 7.5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; shiny; gaping. Lower glume elliptic; 7.5-9 mm long; 1 length of upper glume; membranous; yellow; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume elliptic; 7.5-9 mm long; 1.8 length of adjacent fertile lemma; membranous; yellow; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
    Florets
    Fertile lemma oblong; 4-5 mm long; membranous; without keel; 5-9 -veined. Lemma surface pilose. Lemma apex lobed; 2 -fid; incised 0.25-0.33 of lemma length; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; 9-15 mm long overall; with a straight or slightly twisted column. Column of lemma awn 1-2 mm long. Lateral lemma awns arising on inner edge of lobes; 4-5 mm long; shorter than principal. Palea 1 length of lemma. Rhachilla extension 0-0.05 length of fertile floret.
    Flowers
    Lodicules 2; cuneate; fleshy; glabrous. Anthers 3; 2-2.5 mm long.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Africa: east tropical.
    Reference
    Arundineae. Linder.
    [FTEA]

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

    Habit
    Tussock-forming perennial, with short scaly rhizomes.
    Culms
    Culms up to 1.5 m. high, stout, erect.
    Leaves
    Leaf-blades narrowly linear, up to 45 cm. long, involute or opening out and up to 7 mm. wide at the base, tough, smooth except for the scabrid margins, narrowed to a hard blunt tip; lower leaf-sheaths broad, villous or becoming glabrous, the upper narrow, smooth.
    Inflorescences
    Panicle ovate to oblong, 10–24 cm. long and 3–8 cm. wide, moderately dense; branches eglandular, ascending, much divided; pedicels 1–8 mm. long, smooth.
    Spikelets
    Spikelets 7.5–9 mm. long; glumes pale yellow or golden-yellow throughout or purplish at the base; body of lemma 3–3.5 mm. long, loosely pilose with fine long hairs, the lobes 1–1.5 mm. long, acute, each with a fine bristle up to 5 mm. long; awn 9–15 mm. long, geniculate from near the base, the column 1–2 mm. long, not or slightly twisted; palea 4.5–5 mm. long; anthers 2–2.5 mm. long.
    Habitat
    Upland moor; 2700–3300 m.
    Distribution
    not known elsewhere T2

    Images

    Distribution

    Native to:

    Tanzania

    Pentameris chrysurus (K.Schum.) Galley & H.P.Linder appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 1, 1936 Greenway, P.J. [3801], Tanzania Pentaschistis chrysurus K000702869
    Oct 1, 1936 Uhlig, C. [69], Tanzania Pentaschistis chrysurus K000702867
    Oct 1, 1936 Uhlig, C. [635], Tanzania Pentaschistis chrysurus K000702868
    Greenway, P.J. [7707], Tanzania Pentaschistis chrysurus K000702862
    Richards, H.M. [20883], Tanzania Pentaschistis chrysurus K000702864
    Richards, H.M. [24103], Tanzania Pentaschistis chrysurus K000702865
    Volkens, G. [1826], Tanzania Pentaschistis chrysurus K000367207
    Vesey-Fitzgerald, L.D.E.F. [5412], Tanzania Pentaschistis chrysurus K000702866
    Chuwa, S. [2673], Tanzania Pentaschistis chrysurus K000702863

    First published in Ann. Missouri Bot. Gard. 97: 332 (2010)

    Literature

    Kew Backbone Distributions
    • Clayton, W.D. (1970). Gramineae Flora of Tropical East Africa 1: 1-176.

    Sources

    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 2019. 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 2019. 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