1. Family: Poaceae Barnhart
    1. Genus: Tripogonella P.M.Peterson & Romasch.
      1. Tripogonella minima (A.Rich.) P.M.Peterson & Romasch.

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

    [FTEA]

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

    Habit
    Small slender tufted perennial; culms 4.5–28 cm. high, erect, wiry.
    Leaves
    Leaf-blades filiform, tightly folded or rarely flat, 1–9 cm. long, 0.5 mm. wide when flattened, pilose on the upper surface and margins, sometimes sparsely, tip blunt; basal leaf-sheaths persistent and finally becoming coarsely fibrous.
    Inflorescences
    Spikes 2–8 cm. long, slender, erect, straight or nearly so.
    Spikelets
    Spikelets 3–10-flowered, narrowly elliptic-oblong, 2.6–8 mm. long, overlapping by up to half their length, green tinged with purple or olive-grey; glumes 1-nerved, the lower lanceolate, broadened or lobed below the middle on one side, 0.8–2 mm. long, acute to acuminate, the upper narrowly oblong, 1.7–3.2 mm. long, acute to subobtuse; lemmas narrowly elliptic-oblong, 1–2.3 mm. long, rounded on the back, emarginate or bluntly 2-toothed, mucronate or shortly awned from between the teeth, lateral nerves not or only slightly excurrent; mucro 0.1–1.2 mm. long; anthers 3, 0.2–0.5 mm. long; callus dorsally appressed villous, densely bearded in front at the base of the rhachilla-internode with hairs 0.4–0.8 mm. long.
    Fruits
    Caryopsis narrowly lanceolate, 0.8–1.2 mm. long, obtusely trigonous in cross-section.
    Habitat
    Deciduous bushland and wooded grassland, often in run-off zone around rocky outcrops; 900–1500 m.
    Distribution
    K4 T1 T3 T5 T8 tropical Africa, excluding the Congo basin, and southwards to NatalCape Verde Is., Madagascar
    [FWTA]

    Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

    Habit
    Densely tufted perennial about 15 cm. high
    Leaves
    Fine convolute leaf-blades 2·5–5 cm. long
    Ecology
    Shallow soils around rock outcrops.
    [FZ]

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

    Habit
    Small, slender, caespitose perennial; culms up to 28 cm tall, erect, wiry; basal leaf sheaths persistent, finally becoming coarsely fibrous; leaf lamina 1–9 cm × 0.5 mm, filiform, tightly folded or rarely flat, blunt at the apex.
    Inflorescences
    Racemes 2–8 cm long, slender, erect, straight or nearly so.
    Spikelets
    Spikelets (3)5–10-flowered, (2.6)3.2–8 mm long, narrowly elliptic-oblong, overlapping; glumes 1-nerved, the inferior 0.8–2(2.7) mm long, lanceolate, broadened or lobed below the middle on one side, acute to acuminate, the superior (1.5)2–3.2 mm long, narrowly oblong, acute to subobtuse; callus dorsally appressed-villous, densely barbate in front at the base of the rhachilla internode; lemmas (1)1.6–2.3 mm long, narrowly elliptic-oblong, dorsally rounded, emarginate or bluntly 2-toothed at the apex, mucronate or shortly awned from between the teeth, the lateral nerves not or only slightly excurrent; mucro 0.1–1.2 mm long; anthers 3, 0.2–0.5 mm long.
    Fruits
    Caryopsis 0.8–1.2 mm long, narrowly lanceolate, obtusely trigonous in section.
    [GB]
    Habit
    Perennial; caespitose. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 4.5-28 cm long; wiry. Ligule a ciliolate membrane. Leaf-blades filiform; flat, or conduplicate; 1-9 cm long; 0.5 mm wide. Leaf-blade apex acute.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; erect; straight; unilateral; 2-8 cm long. Rhachis angular. Spikelet packing broadside to rhachis; 0.5 their length apart; regular; 2 -rowed. Spikelets appressed; solitary. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 3-10 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 2.6-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes villous; hairy below. Floret callus pubescent.
    Fertile
    Spikelets comprising 3-10 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 2.6-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes villous; hairy below. Floret callus pubescent.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.8-2 mm long; 0.5-0.6 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute, or acuminate. Upper glume elliptic; 1.7-3.2 mm long; 1.4-1.7 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse, or acute.
    Florets
    Fertile lemma elliptic; 1-2.3 mm long; membranous; mid-green and purple; without keel; 3 -veined. Lemma lateral veins extending close to apex. Lemma apex emarginate; mucronate, or awned; 1 -awned. Principal lemma awn from a sinus; 0.1-0.7(-1.2) mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels winged; narrowly winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3; 0.2-0.5 mm long.
    Fruits
    Caryopsis with adherent pericarp; lanceolate; isodiametric; trigonous; 0.8-1.7 mm long.
    Distribution
    Africa: Macaronesia, west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, south, and western Indian ocean.
    Reference
    Eragrostideae. FTEA.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Burkina, Cameroon, Cape Verde, Caprivi Strip, Chad, Ethiopia, Ghana, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Senegal, Sudan, Swaziland, Tanzania, Togo, Zambia, Zimbabwe

    Tripogonella minima (A.Rich.) P.M.Peterson & Romasch. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1969 Schweinfurth, G. [1129], Ethiopia Tripogon minimus K000366686
    Jan 1, 1969 Schimper [1652], Ethiopia Tripogon minimus K000366685
    Jan 1, 1969 Humbert, H. [13180], Madagascar Tripogon minimus K000366697 isotype
    Raynal-Roques, A. [22344], Mali Tripogon minimus K000212190
    Farrow, R.A. [59], Mali Tripogon minimus K000212189
    Heisterberg, J.F. [364], Burkina Faso Tripogon minimus K000212191

    First published in Taxon 65: 1278 (2016)

    Accepted by

    • Govaerts, R. (2019). World Checklist of Vascular Plants (WCVP Database) The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
    • Cope, T. (1999). Flora Zambesiaca 10(2): 1-261. Royal Botanic Gardens, Kew.
    • Hedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Clayton, W.D., Phillips, S.M., Renvoize, S.A. (1974). Gramineae Flora of Tropical East Africa 2: 177-449.
    • Hepper, F.N. (ed.) (1972). Flora of West Tropical Africa, ed. 2, 3(2): 277-574.
    • Gillet, H. (1968). Le peuplement végétal du massif de l'Ennedi (Tchad) Mémoires du Muséum National d'Histoire Naturelle. Serie B. Botanique 17: 1-206.

    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

    Flora of West Tropical Africa
    Flora of West Tropical 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 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