e-Key <span id="jodit_selection_marker_1708323481555_33027758252170636" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Chrys<span id="jodit_selection_marker_1708323481555_8282925651718704" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>itrix
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Cyperaceae - Caricoideae - Hypolytreae - Chrysitrix L.

Description:

  • Perennials, tufted, sometimes long-rhizomatous
  • Culms flattened, with basal nodes
  • Leaves basal, eligulate, distichous; sheath split; blade: lower 0, upper well developed, similar to flowering stems; unifacial, profile circular to elliptical
  • Inflorescence pseudolateral, of a single spike; lowest bract appearing as a continuation of culm
  • Spike of many spirally imbricate bracts, lowest empty, next 11-100(?) with male florets, with a single, female floret at apex
  • Perianth 0
  • Stamen 1; anther crested
  • Style 3-7-branched (Bruhl 1995: 2 or 6)
  • Nutlet pale, ovoid to subglobose, longitudinally closely striate

Nomenclature:

  • Chrysitrix L.
    • Linnaeus: 165 (1771)
    • Kunth: 365 (1837)
    • Clarke: 292 (1898)
    • Clarke: 760 (1900)
    • Schonland: 63 (1922)
    • Levyns: 129 (1950)
    • Bond & Goldblatt: 38 (1984)

Distribution & Notes:

  • Global: Species ± 4, 1 in Australia
  • Southern Africa: Species ± 3 in Western Cape

References:

  • BOND, P. & GOLDBLATT, P. 1984. Plants of the Cape Flora: A descriptive catalogue. Journal of South African Botany Suppl. Vol. 13
  • BRUHL, J.J. 1995. Sedge genera of the world: relationships and a new classification of the Cyperaceae. Australian Systematic Botany 8, 2
  • CLARKE, C.B. 1898. Cyperaceae. Flora capensis 7
  • CLARKE, C.B. 1900. Cyperaceae. Flora capensis 7. Addenda and corrigenda
  • KUNTH, C.S. 1837. Enumeratio plantarum 2. J.G. Cotta, Stuttgart & Tübingen
  • LEVYNS, M.R. 1950. Cyperaceae. In R.S. Adamson & T.M. Salter, Flora of the Cape Peninsula. Juta, Cape Town
  • LINNAEUS, C. 1771. Mantissa plantarum altera. Laurentius Salvius, Stockholm
  • SCHONLAND, S. 1922. Introduction to South African Cyperaceae. Memoirs of the Botanical Survey of South Africa No. 3

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