e-Key <span id="jodit_selection_marker_1710231137848_4474064907758284" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Hackelo<span id="jodit_selection_marker_1710231137848_4258424275438759" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>chloa
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Poaceae - Panicoideae - Andropogoneae - Rottboelliinae - Hackelochloa Kuntze

Description:

  • Annual, tufted
  • Leaf blade linear-lanceolate, expanded, ± cordate at base; ligule a fringed membrane
  • Inflorescence of many, solitary racemes aggregated into a spatheate false panicle, racemes dorsally compressed, internodes flattened, oblong and fused to adjacent pedicels, disarticulating obliquely; spikelets in pairs, in long-short combinations: one sessile, the other pedicelled, appearing sessile due to fusion of pedicel with rachis
  • Sessile spikelet falling with glumes, globose; glumes ± equal, dissimilar, awnless; lower glume hemispherical, cartilaginous, globose, rugose, conspicuously pitted or tuberculate, wingless; upper glume ovate-lanceolate, smooth, partly adhering to enclosing internode
  • Florets 2; lower floret sterile, reduced to a small hyaline lemma, awnless; upper floret bisexual; lemma less firm than glumes, hyaline, much shorter than glumes, entire, glabrous, awnless; callus obliquely truncate with a central boss; palea hyaline, similar to lemma
  • Lodicules 2, fleshy, broadly cuneate
  • Stamens 3
  • Ovary glabrous; styles distinct, short, plumose
  • Caryopsis oblate, slightly dorsally flattened
  • Pedicelled spikelet slightly longer than sessile spikelet, ovate, narrowly winged, bisexual, male or sterile; lower lemma present or 0, pedicel scarcely distinguishable from internode
  • x = 7

Nomenclature:

  • Hackelochloa Kuntze
    • Kuntze: 776 (1891)
    • Chippindall: 523 (1955)
    • Veldkamp et al.: 281 (1986)
    • Clayton & Renvoize: 847 (1982)
    • Clayton & Renvoize: 366 (1986)
    • Gibbs Russell et al.: 172 (1990)
    • Watson & Dallwitz: 438 (1994)

Distribution & Notes:

  • Global: Species 2, tropics, Africa, India, S China and S United States of America
  • Southern Africa: Species 1: Hackelochloa granularis (L.) Kuntze, Mpumalanga

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
  • KUNTZE, C.E.O. 1891. Revisio generum plantarum vascularium omnium 2. A. Felix, Leipzig
  • VELDKAMP, J.F., DE KONING, R. & SOSEF, M.S.M. 1986. Generic delimitation of Rottboellia and related genera (Gramineae). Blumea 31
  • WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon