e-Key <span id="jodit_selection_marker_1710508991490_3982360996273111" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Leptocar<span id="jodit_selection_marker_1710508991490_7610734675859963" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ydion
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Chloridoideae - Eragrostideae - Eleusininae - Leptocarydion Stapf

Description:

  • Annual, tufted
  • Leaf blade lanceolate to ovate, broad, rounded or abruptly constricted at base, expanded or rolled; ligule a fringed membrane
  • Inflorescence ± oblong, dense, silky, spike-like, composed of many, crowded, slender, 1-sided racemes appressed to axis; spikelets solitary, sessile or subsessile
  • Spikelet laterally compressed, disarticulating above glumes and between florets; glumes very unequal, shorter than spikelet, linear, keeled, 1-nerved, acuminate to acute, sometimes mucronate
  • Florets 5-14; lower florets bisexual; upper floret reduced and sterile; lemmas similar, elliptic-lanceolate, keeled, 3-nerved, nerves conspicuously hairy, truncate or minutely 2-4-lobed, midnerve excurrent into a long slender, straight, scabrid awn; callus hairy; palea linear-lanceolate, shorter than lemma, 2-keeled, hyaline
  • Lodicules 2, cuneate, glabrous
  • Stamens 3; anthers minute
  • Ovary glabrous; styles distinct, slender, plumose
  • Caryopsis linear

Nomenclature:

  • Leptocarydion Stapf
    • Stapf: 316 (1898)
    • Chippindall: 127 (1955)
    • Phillips: 294 (1974)
    • Clayton & Renvoize: 213 (1986)
    • Gibbs Russell et al.: 197 (1990)
    • Watson & Dallwitz: 530 (1994)

Distribution & Notes:

  • Global: Species 1: Leptocarydion vulpiastrum (De Not.) Stapf, eastern and southern Africa
  • Southern Africa: N Namibia and Botswana, Northern Province, Mpumalanga and KwaZulu-Natal

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
  • PHILLIPS, S.M. 1974. Flora of tropical East Africa. Gramineae (Part 2)
  • 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