e-Key <span id="jodit_selection_marker_1710924858656_8898831185193155" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Me<span id="jodit_selection_marker_1710924858656_049899860604312396" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>linis
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Panicoideae - Paniceae - Melinidinae - Melinis P.Beauv.

Description:

  • Annual or perennial, tufted
  • Leaf blade expanded, rarely rolled, usually linear-lanceolate, blades and sheaths pilose with bulbous-based hairs or glabrous; ligule a fringed membrane or a fringe of hairs
  • Inflorescence a panicle, contracted and narrow or open and spreading; spikelets pedicelled, pedicels capillary
  • Spikelet symmetrical or asymmetrical in profile; laterally or dorsiventrally compressed or not noticeably compressed, glabrous to densely hairy; glumes unequal, dissimilar, awnless or awned; lower glume reduced to a minute scale or rim or absent, sometimes distant from upper glume, nerveless to 1-nerved; upper glume as long as spikelet, sometimes gibbous, emarginated to 2-lobed at apex, often awned from between lobes, sometimes tapering to a beak above, finely or prominently 5-9-nerved
  • Florets 2; lower floret male or sterile; lemma resembling upper glume but narrower, often hairy, 3-7-nerved, awnless or usually awned; palea present or 0, when present scaberulous or ciliate on margins; upper floret bisexual; lemma less firm to similar in texture as glumes, smaller than lower lemma, often deciduous before rest of spikelet, smooth, glabrous, margins flat and ± covering palea; palea similar to upper lemma
  • Lodicules 3, very delicate
  • Stamens 3
  • Ovary ellipsoid, glabrous; style free, plumose
  • Caryopsis oblong to oblong-ellipsoid
  • x = 9 (polyploidy)

Nomenclature:

  • Melinis P.Beauv.
    • Palisot de Beauvois: 54 (1812)
    • Stapf: 447 (1899)
    • Stent: 257 (1924)
    • Chippindall: 426 (1955)
    • Clayton & Renvoize: 505 (1982)
    • Clayton & Renvoize: 295 (1986)
    • Zizka: 50 (1988)
    • Zizka: 115 (1989)
    • Gibbs Russell et al.: 210 (1990)
    • Watson & Dallwitz: 589 (1994)
  • Rhynchelytrum Nees
    • Nees ab Esenbeck: 446 (1936)
    • Chippindall: 428 (1955)
    • Clayton & Renvoize: 295 (1986)
    • Watson & Dallwitz: 822 (1994)

Distribution & Notes:

  • Global: Species 20, mainly Africa, also on other continents but possibly introduced there
  • Southern Africa: Species 10, widespread

References:

  • CHIPPINDALL, L.K.A. 1955. A guide to the identification of grasses in South Africa. In D. Meredith, The grasses and pastures of South Africa: 426, 428. Central News Agency, Cape Town
  • CLAYTON, W.D. & RENVOIZE, S.A. 1982. Flora of tropical East Africa. Gramineae (Part 3)
  • CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world. Kew Bulletin. Additional series 13
  • GIBBS RUSSELL, G.E., WATSON, L., KOEKEMOER, M., SMOOK, L., BARKER, N.P., ANDERSON, H.M. & DALLWITZ. M.J. 1990. Grasses of southern Africa. Memoirs of the Botanical Survey of South Africa No. 58
  • NEES AB ESENBECK, C.G.D. 1836 In J. Lindley, A natural system of botany. Gramineae, edn 2. Longmans et al., London
  • PALISOT DE BEAUVOIS, A.M.F.J. 1812. Essai d'une nouvelle agrostographie. Fain, Paris
  • STAPF, O. 1898-1900. Gramineae. Flora capensis 7
  • STENT, S.M. 1924. South African Gramineae. Grasses of the Transvaal as represented in the National Herbarium. Bothalia 1
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon
  • ZIZKA, G. 1988. Revision der Melinideae Hitchcock (Poaceae). Bibliotheca Botanica 138
  • ZIZKA, G. 1989. Flora zambesiaca 10, 3