e-Key v3 - Cleistanthus
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Euphorbiaceae - Phyllanthoideae - Bridelieae - Cleistanthus Hook.f. ex Planch.

Description :

  • Trees or shrubs; monoecious or rarely dioecious
  • Leaves alternate; stipulate
  • Flowers in axillary fascicles or short racemes; petals usually present
  • Male flowers : calyx segments 5, valvate; petals 5 or rarely 0, scale-like; disc entire or sinuately lobed; stamens 5, with filaments united in their lower half into a central column; anther thecae parallel, dehiscing longitudinally; ovary rudimentary within staminal column
  • Female flowers : calyx somewhat united at base; disc double, with inner part surrounding ovary; ovary 3-locular, with 2 ovules in each locule; styles bifid
  • Fruit a globose capsule, sometimes depressed, often 3-lobed, dehiscent into bivalved cocci; endocarp woody, separating from pericarp at maturity; columella persistent
  • Seeds usually 2 per coccus; albumen scanty or copious; cotyledons thick and fleshy
  • x = 10, 11

Nomenclature:

  • Cleistanthus Hook.f. ex Planch.
    • Planchon: t. 779 (1848)
    • Hutchinson: 382 (1915)
    • Léonard: 421 (1960)
    • Radcliffe-Smith: 130 (1987)
    • Webster: 38 (1994)
    • Radcliffe-Smith: 8 (1996)

Distribution & Notes:

  • Global : Species ± 140, Africa, India to Australia
  • Southern Africa : Species 1: Cleistanthus schlechteri (Pax) Hutch.; subtropical forests of N KwaZulu-Natal

References:

  • HUTCHINSON, J. 1915. Euphorbiaceae [in part]. Flora capensis 5, 2
  • LÉONARD, J. 1960. Notulae systematicae XXIX. Révision des Cleistanthus d'Afrique continentale (Euphorbiacées). Bulletin du Jardin Botanique de l'État Bruxelles 30
  • PLANCHON, J.É. 1848. Cleistanthus polystachyus , Hook. fil. ms. Hooker's Icones Plantarum 8
  • 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