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

Euphorbiaceae - Crotonoideae - Ricinodendreae - Schinziophyton Hutch. ex Radcl.-Sm.

Description :

  • Pachycaul trees; dioecious
  • Leaves alternate, digitately compound, with 5-7 petiolulate leaflets, sparsely stellately hairy above, densely so below; stipules small, fugacious
  • Inflorescence a panicled cyme
  • Male flowers : sepals 4 or 5, densely stellate-pubescent; petals 5, connate into a wide, ± truncate tube; stamens 13-21, free; filaments often hairy at base; disc of 5 ± free, quadrate bodies attached to base of petals; pistil 0
  • Female flowers : sepals and petals similar to those of male; staminodes 0; disc crenulate; ovary 1- or 2-locular, with a single ovule in each locule, densely stellate-hairy; style 2-lobed or -partite or divided for half its length into 2 lobes
  • Fruit drupaceous, ± size of large walnut, densely fulvous-tomentose, with thick, woody, pitted endocarp divided by membrane into 2 portions except at base and apex
  • Seeds compressed-ellipsoid, ecarunculate, irregularly ridged on outer face; albumen copious, fleshy, oily; cotyledons flat, broad, palminerved

Nomenclature:

  • Schinziophyton Hutch. ex Radcl.-Sm.
    • Radcliffe-Smith: 157 (1990)
    • Webster: 113 (1994)
    • Radcliffe-Smith: 296 (1996)
  • Ricinodendron Müll.Arg.
    • Müller Argau: 533 (1864) in part

Distribution & Notes:

  • Global : Species 1, Africa; Schinziophyton rautanenii (Schinz) Radcl.-Sm.
  • Southern Africa : Namibia, Botswana and Northern Province

References:

  • MÜLLER ARGAU, J. 1866. Euphorbiaceae [in part]. In A. de Candolle, Prodromus 15. Treuttel & Würtz, Paris
  • RADCLIFFE-SMITH, A. 1990. Notes on African Euphorbiaceae XXII: The genus Schinziophyton . Kew Bulletin 45
  • 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