e-Key <span id="jodit_selection_marker_1709297119970_2791941727634146" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Eu<span id="jodit_selection_marker_1709297119970_9672156371296325" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>lalia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Panicoideae - Andropogoneae - Saccharinae - Eulalia Kunth

Description:

  • Perennial or annual, tufted, erect, often decumbent, rhizomatous
  • Leaf blade linear, convolute at first, becoming expanded, gradually passing into sheath; ligule an unfringed to a fringed membrane
  • Inflorescence of 2-many, terminal, spike-like, hairy (silky) racemes, digitate or subdigitate or scattered on a central axis, dense with spikelets closely packed; internodes and pedicels linear, slender; spikelets similar, in pairs, in long-short combinations: one sessile, the other pedicelled, pedicels free and hairy
  • Spikelet dorsiventrally compressed, falling with glumes; glumes ± equal, dissimilar, hairy, usually awnless; lower glume concave to ± flattened, with inflexed margins, hairy or glabrous, nerveless or faintly 2- or 3-nerved, 2-keeled; upper glume often narrower, keeled, acute
  • Florets 2; lower floret reduced to a lemma, sometimes a small scale or 0, awnless; upper floret bisexual; lemma less firm than glumes, hyaline, linear to cordate, 2-lobed, awnless or awned from between lobes; awn geniculate, twisted; callus obtuse, hairy; palea small, hyaline or 0
  • Lodicules 2, fleshy
  • Stamens 3
  • Ovary glabrous; styles 2, plumose
  • Caryopsis oblong
  • x = 5, 10 (polyploidy)

Nomenclature:

  • Eulalia Kunth
    • Kunth: 160 (1829)
    • Stapf: 324 (1898) under Pollinia Trin.
    • Chippindall: 485 (1955)
    • Clayton & Renvoize: 711 (1982)
    • Clayton & Renvoize: 333 (1986)
    • Gibbs Russell et al.: 166 (1990)
    • Watson & Dallwitz: 401 (1994)

Distribution & Notes:

  • Global: Species ± 30, tropical and subtropical regions of Africa, Asia and Australia
  • Southern Africa: Species 2, Mpumalanga, Swaziland to KwaZulu-Natal and southwards to Eastern 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. 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
  • KUNTH, C.S. 1829. Révision des graminées 1. Gide Sons, Paris
  • STAPF, O. 1898-1900. Gramineae. Flora capensis 7
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon