e-Key <span id="jodit_selection_marker_1710509552299_0954640708056449" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Leuco<span id="jodit_selection_marker_1710509552299_3841392340345482" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>phrys
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Panicoideae - Paniceae - Setariinae - Leucophrys Rendle

Description:

  • Perennial; culms woody, stiffly geniculate, branched profusely from swollen nodes
  • Leaf blade linear, expanded or rolled, often spiny, hard and brittle; leaf sheath broad and papery; ligule a fringe of hairs
  • Inflorescence a contracted but loose panicle, branches slender, each with 2-6 spikelets; spikelets solitary or paired, pedicels unequal, hairy, contracted at base into a short stalk which fits into cup-like apex of pedicel
  • Spikelet 7 mm long, dorsiventrally compressed, falling with glumes; glumes ± equal to unequal, ± equal to longer than spikelet, dissimilar; lower glume membranous, lanceolate, obtuse or notched at apex, hairy at base, 3-nerved; upper glume ovate-lanceolate, tapering into a long awn-like apex, 5-7-nerved, long-hairy dorsally, with a transverse fringe or tufts of hairs on either side just above middle, or a continuous fringe
  • Florets 2; lower floret male, lemma equalling upper glume, channelled dorsally, hairy, hairs always in 2 fringes; palea well developed; upper floret bisexual; lemma ± half as long as lower lemma, elliptic, obtuse, indurated, smooth, glossy, glabrous, faintly 5-nerved, awnless; palea relatively long
  • Lodicules 2, cuneate, fleshy
  • Stamens 3
  • Ovary ellipsoid; styles free, plumose
  • x = 9 (1 report)

Nomenclature:

  • Leucophrys Rendle
    • Rendle: 193 (1899)
    • Pilger: 254 (1954)~(Page number suspect - No access to the publication)
    • Chippindall: 379 (1955)
    • Launert: 126 (1970)
    • Clayton & Renvoize: 283 (1986) under Brachiaria Griseb.
    • Gibbs Russell et al.: 200 (1990)
    • Watson & Dallwitz: 544 (1994)

Distribution & Notes:

  • Global: Species 1: Leucophrys mesocoma (Nees) Rendle, Angola and southern Africa
  • Southern Africa: S Namibia to Northern Cape

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. Central News Agency, Cape Town
  • 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
  • LAUNERT, E. 1970. Gramineae. Prodromus einer Flora von Südwestafrika 160
  • PILGER, R.K.F. 1954. Das System der Gramineae. Botanische Jahrbücher 76
  • RENDLE, A.B. 1899. Monocotyledons. In W.P. Hiern, Catalogue of the African plants. Trustees [of the British Museum], London
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon