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

Bruniaceae - Thamnea Sol. ex Brongn.

Description :

  • Shrubs, erect to sprawling, some with coppice shoots sprouting from lignotubers after fires
  • Leaves spiral to rarely opposite and decussate, generally minute, hard-textured and sessile, narrow, elliptic to ovate, glabrous to verruculose, margins and keel mostly narrowly hyaline or warty; stipules often present as minute dark papillae, later lost; bud leaf colleter a narrow papilla becoming a broadly triangular or semiconical apiculus, later shrinking to lost
  • Flowers solitary and terminal on a branch with an involucre of ± 6-30 bracts; bracteoles 0; floral receptacle finely ribbed, sometimes extended above to form a hypanthium
  • Calyx : sepals free, lanceolate to narrowly ovate
  • Corolla white to pink or basally purple; petals free, spreading, clawed, sometimes with crests next to ovary
  • Stamens free from corolla; anthers slender; pollen grains with 3-5 colpi
  • Nectary 0 to a thin to fleshy green collar; nectar and scent not recorded
  • Ovary superior to half-inferior, with 1 or 2 locules; ovules 4-8, pendulous; wall between locules often incomplete at anthesis with placenta basal, free-central, axile, or a reduced placenta in summit of ovary; style erect, stigma solitary, obtuse to capitate or truncate
  • Fruit ellipsoid to spheroidal or oblong

Nomenclature:

  • Thamnea Sol. ex Brongn.
    • Brongniart: 386 (1826)
    • Sonder: 324 (1862)
    • Pillans: 143 (1947)

Distribution & Notes:

  • Southern Africa : Species 7, Western Cape, mainly in the Ceres region

References:

  • BRONGNIART, A. 1826. Mémoire sur la famille des Bruniacées. Annales Sciences Naturelles 8
  • PILLANS, N.S. 1947. A revision of Bruniaceae . Journal of South African Botany 13
  • SONDER, O.W. 1862. Bruniaceae . Flora capensis 2