e-Key <span id="jodit_selection_marker_1709294475888_801313672092447" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Erythro<span id="jodit_selection_marker_1709294475888_3795289102973176" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>cocca
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Euphorbiaceae - Acalyphoideae - Acalypheae - Erythrococca Benth.

Description:

  • Shrubs; twigs lenticelled; buds covered with protective, persistent scales; dioecious
  • Leaves alternate; stipulate; stipules chartaceous or membranous, often accrescent and modified into weak thorns
  • Flowers usually racemose, small, with male flowers usually several within a bract, female solitary; pedicels capillary, articulate
  • Petals 0
  • Male flowers: calyx closed in bud, splitting into 3 or 4 valvate lobes; stamens (2-)10-40(-60), usually intermixed with small glands and sometimes surrounded by a ring of similar, free or connate glands; filaments free; anthers erect, 2-locular; locules free from base, opening by longitudinal, extrorse slits; ovary absent
  • Female flowers: calyx 2(-4)-partite; disc usually of 2(3) free scales or lobes; ovary 2- or 3-locular; ovules solitary in each locule; styles usually connate below; stigmas usually plumosely laciniate
  • Fruit 2(3)-coccous; cocci subglobose, opening loculicidally; valves coriaceous; subpersistent
  • Seeds subglobose, covered by a thin, fleshy, viscid, usually scarlet aril; testa crustaceous, foveolate-reticulate or smooth; albumen fleshy; embryo axile, radicle conical, cotyledons broad, flat
  • x = 10, 11 (1 report each, polyploidy)

Nomenclature:

  • Erythrococca Benth.
    • Bentham: 506 (1849)
    • Prain: 459 (1920)
    • Radcliffe-Smith: 265 (1987)
    • Webster: 87 (1994)
    • Radcliffe-Smith: 165 (1996)

Distribution & Notes:

  • Global: Species ± 50, mainly Africa
  • Southern Africa: Species 4, Namibia, Botswana, Northern Province, Mpumalanga and KwaZulu-Natal

References:

  • BENTHAM, G. 1849. In W.J. Hooker, Niger Flora. Hippolyte Baillière, London
  • PRAIN, D. 1920. Euphorbiaceae [in part]. Flora capensis 5, 2
  • RADCLIFFE-SMITH, A. 1987. Euphorbiaceae. Flora of tropical East Africa. Euphorbiaceae Part 1
  • RADCLIFFE-SMITH, A. 1996. Euphorbiaceae. Flora zambesiaca 9, 4
  • WEBSTER, G.L. 1994. Synopsis of the genera and suprageneric taxa of Euphorbiaceae. Annals of the Missouri Botanical Garden 81