e-Key <span id="jodit_selection_marker_1710511116410_9735029787178691" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Lin<span id="jodit_selection_marker_1710511116410_5244519254362687" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>tonia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Chloridoideae - Cynodonteae - Pommereullinae - Lintonia Stapf

Description:

  • Perennial, tufted, stoloniferous
  • Leaf blade narrow-linear, expanded, tapering to a fine acuminate point; ligule an unfringed membrane, truncate
  • Inflorescence of 1-5 spike-like racemes, digitate or subdigitate; spikelets solitary, shortly pedicelled
  • Spikelet 6-10 mm long, plump, wedge-shaped, laterally compressed, disarticulating above glumes but not between florets; glumes unequal, shorter than spikelet, membranous, 1-nerved, weakly keeled, awnless, dissimilar; lower glume shorter than upper glume, lanceolate, obtuse; upper glume oblong, notched at apex
  • Florets 4-10, lower 2-4 bisexual, upper or uppermost floret reduced and sterile; lemmas firmer than glumes, similar, broad, obovate, rounded on back, 5-9-nerved, nerves slightly shorter than lemma, shortly 2-lobed, hairy, hairs short, stiff, sharp-pointed to obtuse or club-shaped, in rows on lower half or towards base of lobes, shortly awned from between lobes or from back near apex; awn straight to curved, not geniculate; callus hairy; palea elliptic-lanceolate, shortly 2-lobed, flat dorsally, 2-keeled, ciliate on keels
  • Lodicules 2, oblong
  • Stamens 3
  • Ovary shortly stalked, oblong; styles fused at base, plumose
  • Caryopsis dorsiventrally flattened, enclosed within a free hyaline pericarp
  • x = 15 (1 report)

Nomenclature:

  • Lintonia Stapf
    • Stapf: t. 2949 (1911)
    • Chippindall: 117 (1955)
    • Phillips: 302 (1974)
    • Clayton & Renvoize: 235 (1986)
    • Gibbs Russell et al.: 201 (1990)
    • Watson & Dallwitz: 553 (1994)

Distribution & Notes:

  • Global: Species 2, Africa
  • Southern Africa: Species 1: Lintonia nutans Stapf, Botswana, northern provinces of South Africa, Mpumalanga and Swaziland

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. 1911. Lintonia nutans Stapf. Hooker's Icones Plantarum 30
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon