e-Key <span id="jodit_selection_marker_1706788410842_5456305187309602" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Arthr<span id="jodit_selection_marker_1706788410842_6728800973994471" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aerua
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Amaranthaceae - Amaranthoideae - Amarantheae - Aervinae - Arthraerua (Kuntze) Schinz

Description:

  • Low rounded semisucculent subshrubs, repeatedly branched; branches articulate, becoming striate
  • Leaves opposite, scale-like
  • Inflorescences small, dense, terminal, woolly spikes, bracteate
  • Flowers bisexual, solitary in axils of bracts
  • Tepals 5, free, 1-nerved, acuminate, scarious, silky
  • Stamens 5, free; quadrate pseudostaminodes fused to filaments; anthers 2-thecous, divergent at base
  • Ovary glabrous; ovules solitary on a basal funicle; style slender; stigma capitate
  • Capsule indehiscent, falling early with perianth

Nomenclature:

  • Arthraerua (Kuntze) Schinz
    • Schinz: 109 (1893)
    • Baker & Clarke: 71 (1909)
    • Schinz: 50 (1934)
    • Podlech: 10 (1966)
    • Townsend: 85 (1993)
  • Aerua Juss. sect. Arthraerua
    • Kuntze: 272 (1886)

Distribution & Notes:

  • Southern Africa: Monotypic: Arthraerua leubnitziae (Kuntze) Schinz, confined to the west coast of Namibia

References:

  • BAKER, J.G. & CLARKE, C.B. 1909. Amarantaceae. Flora of tropical Africa 6,1
  • KUNTZE, C.E.O. 1886. Jahrbuch des Königlichen Botanischen Gartens und des Botanischen Museums zu Berlin 4
  • PODLECH, D. 1966. Amaranthaceae. Prodromus einer Flora von Südwestafrika 33
  • SCHINZ, H. 1893. Amarantaceae. Die natürlichen Pflanzenfamilien III,1a
  • SCHINZ, H. 1934. Amaranthaceae. Die natürlichen Pflanzenfamilien, edn 2, 16c
  • TOWNSEND, C.C. 1993. Amaranthaceae. In K. Kubitzki, J.G. Rohwer & V. Bittrich, The families and genera of vascular plants - dicotyledons 2. Springer-Verlag, Berlin

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