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

Rubiaceae - Cinchonoideae - Naucleeae - Breonadia Ridsdale

Description :

  • Trees or shrubs; terminal vegetative buds conical
  • Leaves usually in whorls of 4, petiolate, elongate, lanceolate; stipules narrowly triangular, deciduous
  • Flowers in pedunculate, dense, spherical, heads, with 2 connate bracts on each peduncle; each flower subtended by a linear-spatulate bract
  • Calyx 5-lobed, lobes oblong; limb-tube developed, densely hairy
  • Corolla 5-lobed, hairy; pinkish green or white or yellowish brown, lobes elliptic, concave, imbricate; tube cylindric, 5-ribbed, glandular within
  • Stamens 5, arising in throat of corolla, included; filaments linear, shorter than anthers; anthers basifixed, oblong, sagittate, apiculate
  • Ovary 2-locular, with several pendulous ovules in each locule; placenta attached to upper third of septum; style terete, long-exserted; pollen presenter club-shaped
  • Fruit septicidal capsules, clustered in hard, brown, spherical heads
  • Seeds ovoid or obovoid, compressed, not winged

Nomenclature:

  • Breonadia Ridsdale
    • Ridsdale: 549 (1975)
    • Bridson & Verdcourt: 443 (1988)
  • Adina Salisb.
    • Salisbury: 115 (1807) in part

Distribution & Notes:

  • Global : Species 1: Breonadia salicina (Vahl) Hepper & J.R.I.Wood, tropical Africa and Madagascar
  • Southern Africa : Northern Province, Mpumalanga, KwaZulu-Natal and Swaziland

References:

  • BRIDSON, D.M. & VERDCOURT, B. 1988. Flora of tropical East Africa . Rubiaceae (part 2)
  • RIDSDALE, C.E. 1975. A synopsis of the African and Madagascan Rubiaceae - Naucleeae . Blumea 22
  • SALISBURY, R.A. 1807. The paradisus londinensis . W. Hooker, London