1. Family: Poaceae Barnhart
    1. Genus: Pentameris P.Beauv.
      1. Pentameris rigidissima (Pilg. ex H.P.Linder) Galley & H.P.Linder

        This species is accepted, and its native range is Cape Prov.

    [GB]
    Habit
    Perennial; cushion forming. Stolons absent, or present. Butt sheaths pallid; glossy; glabrous; persistent and investing base of culm. Glands absent. Culms erect; 10-30 cm long; 3 -noded. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking. Ligule a fringe of hairs. Leaf-blades filiform; convolute; 4-10 cm long; 0.5 mm wide; stiff; eglandular. Leaf-blade margins smooth. Leaf-blade apex acute; muticous, or pungent.
    Inflorescences
    Inflorescence a panicle; comprising 5-30 fertile spikelets. Panicle contracted; linear, or oblong; 2-6 cm long; 0.7-1.5 cm wide; bearing few spikelets. Panicle branches eglandular; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 0.8-1.5 length of fertile spikelet; eglandular; smooth.
    Spikelets
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Fertile
    Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent.
    Glume
    Glumes persistent; similar; exceeding apex of florets; gaping. Lower glume elliptic; 7-8 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume elliptic; 7-8 mm long; 2.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
    Florets
    Fertile lemma oblong; 3 mm long; membranous; without keel; 5-9 -veined. Lemma surface villous. Lemma apex lobed; 2 -fid; with lobes 1 mm long; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; 8-12 mm long overall; with twisted column. Lateral lemma awns arising on inner edge of lobes; 2-5 mm long; equalling glumes; shorter than principal.
    Flowers
    Lodicules 2; cuneate; fleshy; glabrous. Anthers 3; 1.6-1.8 mm long; brown.
    Fruits
    Caryopsis with adherent pericarp.
    Distribution
    Africa: south.
    Reference
    Arundineae. Linder 1992.

    Distribution

    Native to:

    Cape Provinces

    Pentameris rigidissima (Pilg. ex H.P.Linder) Galley & H.P.Linder appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1967 Esterhuysen, E. [28066], South Africa Pentaschistis rigidissima K000719576
    Jan 1, 1967 Esterhuysen, E. [28129], South Africa Pentaschistis rigidissima K000719577
    Brenan, J.P.M. [14038], South Africa Pentaschistis rigidissima K000719593
    Vlok, J.H.J. [1282], South Africa Pentaschistis rigidissima K000719594
    Linder, H.P. [4464], South Africa Pentaschistis rigidissima K000719596
    Linder, H.P. [4576], South Africa Pentaschistis rigidissima K000719597
    Linder, H.P. [4478], South Africa Pentaschistis rigidissima K000719598
    Esterhuysen, E. [27973], South Africa Pentaschistis rigidissima K000719572
    Esterhuysen, E. [27973], South Africa Pentaschistis rigidissima K000719573
    Esterhuysen, E. [27999], South Africa Pentaschistis rigidissima K000719574
    Esterhuysen, E. [28000], South Africa Pentaschistis rigidissima K000719575
    Esterhuysen, E. [28670], South Africa Pentaschistis rigidissima K000719578
    Esterhuysen, E. [28700], South Africa Pentaschistis rigidissima K000719579
    Esterhuysen, E. [28700], South Africa Pentaschistis rigidissima K000719580
    Esterhuysen, E. [28660], South Africa Pentaschistis rigidissima K000719581
    Esterhuysen, E. [34190], South Africa Pentaschistis rigidissima K000719582
    Esterhuysen, E. [35383], South Africa Pentaschistis rigidissima K000719583
    Esterhuysen, E. [35857], South Africa Pentaschistis rigidissima K000719584
    Esterhuysen, E. [33743], South Africa Pentaschistis rigidissima K000719585
    Esterhuysen, E. [26744], South Africa Pentaschistis rigidissima K000719586
    Esterhuysen, E. [31813], South Africa Pentaschistis rigidissima K000719587
    Esterhuysen, E. [28058], South Africa Pentaschistis rigidissima K000719588
    Esterhuysen, E. [29992], South Africa Pentaschistis rigidissima K000719589
    Esterhuysen, E. [28705], South Africa Pentaschistis rigidissima K000719590
    Esterhuysen, E. [28703], South Africa Pentaschistis rigidissima K000719591
    VanBreda [4156], South Africa Pentaschistis rigidissima K000719595
    Acocks, J.P.H. [18995], South Africa Pentaschistis rigidissima K000719592
    Enterhuysen, E. [27533], South Africa Pentaschistis rigidissima K000719570
    Enterhuysen, E. [27533], South Africa Pentaschistis rigidissima K000719571

    First published in Ann. Missouri Bot. Gard. 97: 335 (2010)

    Literature

    Kew Backbone Distributions
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.

    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.

    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