e-Key <span id="jodit_selection_marker_1702888949548_5867098331335419" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Sterculi<span id="jodit_selection_marker_1702888949548_2933550562357168" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

DICOTYLEDON - DILLENIIDAE - MALVALES - Sterculiaceae

Compiled by C.L. Bredenkamp

Description:

  • Trees, shrubs, undershrubs, or herbs, sometimes monoecious, dioecious or polygamous, usually stellate-pubescent
  • Leaves alternate, simple or digitately compound, penni- or palmately nerved, usually petiolate; stipules usually present
  • Flowers bisexual or unisexual, usually regular, arranged in axillary or terminal racemes, cymes, corymbs or panicles, rarely solitary; sometimes with an epicalyx or floral bracts
  • Calyx persistent, 3-5-lobed, valvate
  • Corolla of 0-5 petals, free or adnate to base of staminal tube, twisted
  • Stamens 5-many, free or united into a tube around ovary; staminodes sometimes present; anthers 2-thecous, with longitudinal slits
  • Ovary usually superior, with 1-5 (or more) free, or ± united carpels, with 1-many, usually axile ovules in each carpel
  • Fruit usually dry, sometimes fleshy, dehiscent or indehiscent
  • Seeds with embryo straight or curved; endosperm usually present

Classification Notes:

  • Malvaceae - Byttnerioideae, Dombeyoideae, Sterculioideae, fide Bayer et al. (1999)
  • See note on family circumscription under Malvaceae

Nomenclature:

  • Sterculiaceae
    • Harvey: 178 (1860) and l.c.: 179 under Byttneriaceae
    • Wild: 517 (1961)
    • Friedrich-Holzhammer, Merxmüller & Roessler: 1 (1969)

Distribution & Notes:

  • Global: Genera 72, species 1500, cosmopolitan in tropical and subtropical climates
  • Southern Africa: Genera 7, species 181

References:

  • BAYER, C., FAY, M.F., DE BRUIJN, A.Y., SAVOLAINEN, V., MORTON, C.M., KUBITZKI, K., ALVERSON, W.S., CHASE, M.W. 1999. Support for an expanded family concept of Malvaceae within a recircumscribed order MALVALES: a combined analysis of plastid atpB and rbcL DNA sequences. Botanical Journal of the Linnean Society 129
  • FRIEDRICH-HOLZHAMMER, M., MERXMÜLLER, H. & ROESSLER, H. 1969. Sterculiaceae. Prodromus einer Flora von Südwestafrika 84
  • HARVEY, W.H. 1860. Sterculiaceae, Vent. & Byttneriaceae, R.Br. Flora capensis 1
  • WILD, H. 1961. Sterculiaceae. Flora zambesiaca 1

Resources:

  • Sterculiaceae genera:
Cola Dombeya Hermannia Melhania
Melochia Sterculia Waltheria