e-Key <span id="jodit_selection_marker_1710509829855_26644569120275285" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Leucosp<span id="jodit_selection_marker_1710509829855_46225615898003203" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>haera
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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 - Leucosphaera Gilg

Description:

  • Small silvery shrublet
  • Leaves mostly opposite, entire
  • Inflorescences capitate, the ultimate divisions of 1 or 2 bisexual fertile flowers and 1 or 2 sterile flowers formed of 2-4 narrow, white, plumose-hairy bracteoliform processes
  • Tepals 5, obscurely 3-nerved, lanceolate-linear, with broad, membranous margins on lower half, long-acuminate, with minutely scabrid hairs; perianth of sterile flowers not spiny
  • Stamens 5; filaments abruptly expanded and connate into a cup below; pseudostaminodes 0; anthers 2-thecous
  • Ovary pyriform, densely pilose above; ovule solitary; style slender; stigma capitate
  • Capsule not compressed, thin-walled, apex firm, pilose, flat, hyaline wall glabrous and ruptured by developing seed, or indehiscent
  • Seed brown, shining, ± reticulate

Nomenclature:

  • Leucosphaera Gilg
    • Gilg: 152 (1897)
    • Lopriore: 41 (1899)
    • Schinz: 250 (1911)
    • Schinz: 45 (1934)
    • Townsend: 84 (1993)
  • Marcellia Baill.
    • Baillon: 625 (1886) in part
    • Baker & Clarke: 51 (1909) in part
    • Cooke & Wright: 413 (1910)

Distribution & Notes:

  • Global: Monotypic: Leucosphaera bainesii (Hook.f.) Gilg, Angola and southern Africa
  • Southern Africa: Namibia, Botswana and NW Northern Cape

References:

  • BAILLON, H.E. 1886. Marcellia. Bulletin mensuel de la Société Linnéenne de Paris 1
  • BAKER, J.G. & CLARKE, C.B. 1909. Amarantaceae. Flora of tropical Africa 6,1
  • COOKE, T. & WRIGHT, C.H. 1910. Amarantaceae. Flora capensis 5,1
  • GILG, E.F. 1897. Amarantaceae. Die natürlichen Pflanzenfamilien Nachtr. III,1a
  • LOPRIORE, G. 1899. Beiträge zur Flora von Afrika 18. Amarantaceae africanae I. Botanische Jahrbücher 27
  • SCHINZ, H. 1911. Beiträge zur Kenntnis der afrikanischen Flora XXIV. Vierteljahrsschrift der naturforschenden Gesellschaft in Zürich 56,3
  • 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