e-Key <span id="jodit_selection_marker_1709298876977_030180725107331163" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Eus<span id="jodit_selection_marker_1709298876978_5845590177933051" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>tegia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Apocynaceae - Asclepiadoideae - Asclepiadeae - Eustegia R.Br.

Description:

  • Perennial herbs, with tuberous rootstock and with many short, decumbent or ascending branches
  • Leaves small, narrow, sessile or subsessile
  • Flowers in peduncled umbels, lateral at nodes
  • Sepals sometimes with scales within base
  • Corolla deeply 5-lobed, green; lobes oblong-lanceolate
  • Corona arising from base of staminal column, consisting of 3 series of erect, membranous lobes, ± as long as column; outer series of 5 lobes opposite corolla lobes, oblong or linear and broadened at base, entire or bifid; middle series subsimple, linear or deeply divided into linear segments alternating with corolla lobes; inner series of 5 linear, entire lobes alternating with corolla lobes
  • Anthers 2-locular, with ovate, membranous appendages
  • Pollinia pendulous, ovate-oblong; caudicles as long as pollinia; corpuscle shortly winged
  • Follicles usually solitary by abortion, ± fusiform, smooth

Nomenclature:

  • Eustegia R.Br.
    • Brown: 40 (1810)
    • Brown: 759 (1908)
    • Bruyns: 36 (1999)

Distribution & Notes:

  • Southern Africa: Species 1, Northern and Western Cape

References:

  • BROWN, N.E. 1908. Asclepiadeae. Flora capensis 4,1
  • BROWN, R. 1810. On the Asclepiadeae, a natural order of plants separated from the Apocineae of Jussieu. Memoirs of the Wernerian Natural History Society 1
  • BRUYNS, P.V. 1999. The systematic position of Eustegia. Botanische Jahrbücher 121