e-Key <span id="jodit_selection_marker_1706793148915_9209605074827558" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - <span id="jodit_selection_marker_1706793148915_2450904749164331" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>Augea
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Zygophyllaceae - Augea Thunb.

Description:

  • Annual herbs; glabrous, succulent
  • Stems branched or unbranched
  • Leaves opposite, simple, connate, subterete
  • Flowers a few in a fascicle at nodes of branches, shortly pedicellate
  • Calyx with an obconic tube; lobes 5, ovate-lanceolate, with an apical membranous appendage, margins membranous
  • Petals 5, linear, 3-fid, with the middle lobe shortest; greenish white
  • Disc cup-shaped, with 10 filiform processes on rim
  • Stamens 10, arising on margin of disc and alternating with processes; filaments terete, with deeply 2-partite, toothed appendages; anthers oblong, obtusely mucronate at apex
  • Ovary inserted within disc, sessile, 10-locular, with 2 or 3 ovules in each locule; style short; stigma subcapitate
  • Fruit a capsule, irregularly septicidal
  • Seeds obovate in outline, somewhat compressed, densely woolly; endosperm absent

Nomenclature:

  • Augea Thunb.
    • Thunberg: 80 (1794)
    • Sonder: 355 (1860)
    • Hooker: 265 (1862)
    • Engler: 92 (1897)
    • Engler: 158 (1931)
    • Phillips: 434 (1951)
    • Schreiber: 2 (1966)

Distribution & Notes:

  • Southern Africa: Monotypic: Augea capensis Thunb., in the southern part of Namibia and in arid areas of Northern and Western Cape

References:

  • ENGLER, H.G.A. 1897. Zygophyllaceae. Die natürlichen Pflanzenfamilien, edn 1, 3, 4
  • ENGLER, H.G.A. 1931. Zygophyllaceae. Die natürlichen Pflanzenfamilien, edn 2, 19a
  • HOOKER, J.D. 1862. Zygophylleae. In G. Bentham & J.D. Hooker, Genera plantarum 1. Pamplin, London
  • PHILLIPS, E.P. 1951. The genera of South African flowering plants. Memoirs of the Botanical Survey of South Africa No. 25
  • SCHREIBER, A. 1966. Zygophyllaceae. Prodromus einer Flora von Südwestafrika 65
  • SONDER, W. 1860. Zygophylleae. Flora capensis 1
  • THUNBERG, C.P. 1794. Decandria. Prodromus plantae capensium. Edman, Uppsala