e-Key <span id="jodit_selection_marker_1710762380804_6542467266284773" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Ma<span id="jodit_selection_marker_1710762380804_06633956960776777" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ckaya
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Acanthaceae - Acanthoideae - Justicieae - Odontoneminae - Mackaya Harv.

Description:

  • Shrub
  • Leaves petiolate, elliptic or elliptic-lanceolate, acuminate, undulate-crenate
  • Inflorescence terminal, monochasial cymes; bracts 2, subulate; bracteoles 2
  • Calyx regular, hairy; lobes 5, linear-lanceolate, acuminate; tube shorter than lobes
  • Corolla subregular, lobes 5, ovate or oblong; aestivation ascending; tube longer than lobes, cylindric below, campanulate above
  • Androecium: fertile stamens 2, arising at base of campanulate part of corolla tube, ± included; filaments linear; anthers 2-thecous; thecae parallel, muticous; staminodes 2
  • Pollen spheroidal, 3-colporate, with pseudocolpi; surface reticulate
  • Disc annular
  • Gynoecium: ovary with 1 or 2 ovules in each locule; style terete, hairy or nearly glabrous below; style branches 2, equal, cylindriform
  • Capsule woody, ellipsoid, long-stipitate, with inelastic placental bases
  • Seeds ± ovate, asymmetrical at base; surface rough and convolute or rugose
  • x = 7 or 12 (1 report, polyploidy)

Nomenclature:

  • Mackaya Harv.
    • Harvey: 8, t. 13 (1859)
    • Clarke: 44 (1901)

Distribution & Notes:

  • Species 1: Mackaya bella Harv., Swaziland and northern and eastern provinces of South Africa

References:

  • HARVEY, W.H. 1859. Mackaya. Thesaurus capensis; or illustrations of the South African flora 1. Dublin
  • CLARKE, C.B. 1901. Acanthaceae. Flora capensis 5,1