1. Family: Poaceae Barnhart
    1. Genus: Alloeochaete C.E.Hubb.
      1. Alloeochaete oreogena Launert

        This species is accepted, and its native range is Malawi (Mt. Mulanje).

    [FZ]

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

    Habit
    Tussocky perennial up to 200 cm tall; culms erect from a ± oblique rhizome up to 1.2 cm in diameter; basal leaf sheaths lanose-tomentose with brownish hairs, strongly striate towards the base and ultimately breaking up into stiffly curling fibres from the bottom; leaf lamina flat or rarely convolute, up to 120 × 2 cm, narrowing to a hooded tip, glabrous or loosely pilose.
    Inflorescences
    Panicle 20–35(42) cm long, oblong or lanceolate, dense, the branches ascending to suberect, the terminal pedicels up to 26 mm long.
    Spikelets
    Spikelets (15)20–26 mm long, linear to oblong-lanceolate, purple or green tinged with purple; glumes ovate-lanceolate to elliptic, 5-nerved, pilose in the upper half, the inferior 7–10 mm long, the superior 9–14 mm long; lowermost floret male, the lemma (11)13–15 mm long including the awn; fertile lemmas 14–16 mm long including the aristate lobes, ovate to broadly elliptic; central awn 13–15(18) mm long.
    [GB]
    Habit
    Perennial; caespitose; clumped densely. Rhizomes short (up to 12 mm diam). Butt sheaths papery; woolly; persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 100-200 cm long. Ligule a fringe of hairs; 0.5-0.9 mm long. Leaf-blades 60-130 cm long; 10-20 mm wide. Leaf-blade apex hooded.
    Inflorescences
    Inflorescence a panicle. Panicle open; lanceolate, or oblong; dense; 23-42 cm long. Panicle branches pubescent in axils. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; (3-)6-9 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-26 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long. Floret callus elongated; 1.6-2 mm long; bearded; obtuse. Floret callus hairs 0.3 length of lemma.
    Fertile
    Spikelets comprising 1 basal sterile florets; (3-)6-9 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-26 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5 mm long. Floret callus elongated; 1.6-2 mm long; bearded; obtuse. Floret callus hairs 0.3 length of lemma.
    Glume
    Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume elliptic; 7-10 mm long; 0.75 length of upper glume; membranous; 1-keeled; (3-)5 -veined. Lower glume surface pilose; hairy above. Lower glume apex acuminate. Upper glume elliptic; 9-14 mm long; 0.9-1.4 length of adjacent fertile lemma; membranous; 1-keeled; 5 -veined. Upper glume surface pilose; hairy above. Upper glume apex dentate; 2 -fid; awned; 1 -awned.
    Florets
    Basal sterile florets male; with palea; persisting on inflorescence. Lemma of lower sterile floret similar to fertile lemma; elliptic; (11-)13-15 mm long; membranous; 5 -veined; pilose; hairy above; dentate; 2 -fid; awned. Awn of lower sterile floret straight; 1 mm long. Fertile lemma elliptic; 10 mm long; chartaceous; without keel; 5 -veined. Lemma surface pilose; hairy above; with marginal hair tufts; bearing 2 hair tufts in all. Lemma apex dentate; 2 -fid; awned; 3 -awned. Principal lemma awn from a sinus; geniculate; 13-15 mm long overall; with twisted column. Lateral lemma awns arising on apex of lobes; 2-4 mm long; shorter than principal. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2; glabrous. Anthers 3; 5-6 mm long.
    Fruits
    Disseminule comprising a floret.
    Distribution
    Africa: southern tropical.
    Reference
    Arundineae. WDC.

    Images

    Distribution

    Alloeochaete oreogena Launert appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1974 Robinson, E.A. [5313], Malawi K000210459
    Jan 1, 1974 Robinson, E.A. [5313], Malawi K000210458
    Jan 1, 1974 Robinson, E.A. [5313], Malawi K000210460
    Phipps, J.B. [2777], Malawi K000210457
    Brummitt, R.K. [12330], Malawi K000210461
    Chapman, J.D. [5682], Malawi K000210462
    Chapman, J.D. [669], Malawi K000210463 isotype

    First published in Garcia de Orta, Sér. Bot. 1: 91 (1973)

    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.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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 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