e-Key <span id="jodit_selection_marker_1710923074710_3515741391509317" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Mauro<span id="jodit_selection_marker_1710923074710_5819346625386226" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>cenia
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Celastraceae - Maurocenia Mill.

Description:

  • Small evergreen shrubs to spreading trees, unarmed, glabrous; bark greyish with layers of powdery yellow pigment in exposed bark
  • Branchlets terete or slightly flattened, greyish brown
  • Leaves opposite; lamina widely elliptic to circular, dark green above, grey-green below, base rounded to cuneate, apex rounded to retuse, margin entire, revolute, coriaceous and rigid; venation brochidodromus, slightly raised above and more prominent below, midrib and petiole very conspicuous below owing to whitish green colour contrasting with grey-green lamina in dried leaves; petiolate; stipules minute, ± triangular, brownish black, marcescent
  • Inflorescences sessile, ± irregularly dichasial, axillary towards apices of branchlets, 4-10-flowered; bracts minute
  • Flowers often unisexual with staminodes, or bisexual; shortly pedicellate
  • Sepals 5, rudimentary
  • Petals 5, white, ovate, sessile, apex rounded, margin ± deflexed
  • Disc fleshy, entire, undulate
  • Stamens 5, ± erect; inserted below margin of disc; filaments of perfect flowers relatively long, well exserted above flowers; filaments of female flowers rudimentary (staminodes); anthers basifixed, introrse
  • Ovary ± immersed in and adnate to disc, 2(3)-locular with 2 pendulous collateral ovules per locule; ovules epitropous, dorsal; styles short; stigma in female flowers often conspicuously 2-lobed, papillate, stigma inconspicuous in perfect flowers
  • Fruit baccate, pale red, spheroid, mesocarp fleshy
  • Seeds 1 or 2 per locule (up to 5 per fruit), brown, ± spheroid; endosperm fleshy; embryo erect, with cotyledons fleshy, widely elliptic, base unequal

Nomenclature:

  • Maurocenia Mill.
    • Miller: [859] (1754)
    • Sonder: 465 (1860)
    • Kuntze: 147 (1891), in part
    • Davison: 343 (1927)
    • Loesener: 179 (1942)
    • Archer & Van Wyk: 7 (1998)
  • Maurocenia Mill. subg. Eumaurocenia Kuntze
    • Kuntze: 149 (1891)

Distribution & Notes:

  • Southern Africa: Monotypic: Maurocenia frangula Mill. (note spelling of specific epithet), restricted to kloofs or coastal bush in Cape Peninsula and the West Coast National Park, Western Cape

References:

  • ARCHER, R.H. & VAN WYK, A.E. 1998. A taxonomic revision of Maurocenia Mill. (Celastraceae). Bothalia 28
  • DAVISON, J.D. 1927. Celastraceae R.Br. Bothalia 2
  • KUNTZE, O. 1891. Revisio generum plantarum. Pars 1. Felix, Leipzig
  • LOESENER, L.E.T. 1942. Die natürlichen Pflanzenfamilien 2,20b
  • MILLER, P. 1754. The gardener's dictionary, abridged edn 4. Rivington, London
  • SONDER, O.W. 1860. Celastrineae. Flora capensis 1