e-Key <span id="jodit_selection_marker_1702885883231_01938477347577039" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Tham<span id="jodit_selection_marker_1702885883231_7397938392864696" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>nosma
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Rutaceae - Thamnosma Torr. & Frem.

Description:

  • Undershrubs or shrubs, leafy or nearly leafless, with immersed glands
  • Leaves alternate, (3)5-foliolate; leaflets linear or cuneate, entire or rarely slightly lobed at apex
  • Flowers pedicelled, in small, terminal racemes
  • Calyx of 4 small sepals or 4-lobed
  • Petals 4, sessile, suborbicular, entire, imbricate
  • Disc cupular, crenate or lobed
  • Stamens 8, inserted at base of disc
  • Ovary sessile or stalked, 2-lobed, 2-locular, with several ovules in each locule, with immersed glands; style simple; stigma capitate
  • Fruit a 2-lobed capsule, with 4-6 seeds
  • x = 9 (10) (1 report each)

Nomenclature:

  • Thamnosma Torr. & Frem.
    • Torrey & Frémont: 313 (1845)
    • Mendonça: 183 (1963)
    • Schreiber: 3 (1973)

Distribution & Notes:

  • Global: Species ± 6, southwestern and North America, Sokotra
  • Southern Africa: Species 2, Namibia, Botswana, Northern Province, Mpumalanga, Northern Cape

References:

  • MENDONÇA, F.A. 1963. 40. Rutaceae. Flora zambesiaca 2,1
  • SCHREIBER, A. 1973. Rutaceae. Prodromus einer Flora von Südwestafrika 68
  • TORREY, J. & FRÉMONT, J.C. 1845. In J.C. Frémont, Report of the expedition to the Rocky Mountains in the year 1842. Senate of the USA, Washington

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