e-Key v3 - Macaranga
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Euphorbiaceae - Acalyphoideae - Acalypheae - Macaranga Thouars

Description :

  • Trees or shrubs, often with watery latex; dioecious, rarely monoecious
  • Leaves often large, alternate, petiolate, usually 3-7-nerved from base
  • Inflorescence a raceme or spike, lateral or forming a terminal, thyrsoid panicle, with male flowers glomerulate, several to a bract and female flowers solitary to each bract
  • Petals 0
  • Disc 0
  • Male flowers : calyx splitting into 3 or 4 valvate lobes; stamens (1)2 or 3(few); filaments short, usually free; anthers (2)4-thecous and (2)4-valved; pistil 0
  • Female flowers : calyx widely cupular or obliquely spathaceous, rarely splitting into 2 or 3 lobes; ovary (1)2- or 3(4)-locular, with a single ovule in each locule, sometimes glandular; styles free or shortly connate at base, sometimes 1, ligulate
  • Fruit a capsule with (1)2-several cocci, with cocci bivalved, granular-glandular, becoming smooth and glabrous when glands rub off
  • Seeds subglobose, smooth, shiny, exotesta fleshy, endotesta crustaceous; albumen fleshy; cotyledons broad, flat
  • x = 11 (10)

Nomenclature:

  • Macaranga Thouars
    • Thouars: 26 (1806)
    • Prain: 485 (1920)
    • Radcliffe-Smith: 239 (1987)
    • Webster: 87 (1994)
    • Radcliffe-Smith: 161 (1996)

Distribution & Notes:

  • Global : Species ± 300, mainly tropics of the Old World
  • Southern Africa : Species 1: Macaranga capensis (Baill.) Sim, coastal forests of KwaZulu-Natal to border of Eastern Cape

References:

  • 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
  • THOUARS, L.-M.A.A., DU PETIT. 1806. Genera nova madagascariensia . Paris
  • WEBSTER, G.L. 1994. Synopsis of the genera and suprageneric taxa of Euphorbiaceae . Annals of the Missouri Botanical Garden 81