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

Bignoniaceae - Podranea Sprague

Description :

  • Scrambling shrubs or subshrubs, almost glabrous; branchlets terete to 4-angled, lenticelled
  • Leaves imparipinnately compound, without tendrils, opposite, petiolate; leaflets elliptic-ovate, entire or remotely toothed; pseudostipules 0
  • Flowers large, in terminal panicles
  • Calyx cupular-campanulate, evenly 5-lobed, inflated; tube ridged, glabrous; lobes almost as long as tube, ovate, apiculate, ciliate
  • Corolla somewhat bilabiate and vertically compressed, pink or lilac; tube campanulate above a short cylindrical base, glabrous outside, glandular within on lower part, with stalked hairs, pilose in throat; lobes obovate
  • Stamens 4, didynamous, arising at top of narrow portion of corolla tube, included; filaments subterete, with stalked glands on basal part; anthers with 2 thecae connate only at apex, straight, divaricate when mature; staminode 1
  • Nectary thick, saucer-shaped, somewhat crenate
  • Ovary linear, ± cylindrical, tapering into style, glabrous, bilocular; ovules many, in 6-8 rows per locule; style semiterete, slightly exserted; stigma with two ± oval lobes
  • Fruit a long, narrow, linear, straight capsule, with acute apex, somewhat flattened, leathery, smooth, dehiscing perpendicularly to septum
  • Seeds with 2 ± rectangular wings; testa membranous

Nomenclature:

  • Podranea Sprague
    • Sprague: 449 (1904)
    • Verdoorn: t. 1347 (1961)
    • Gentry: 122 (1977)
    • Diniz: 79 (1988)
    • Gentry: 111 (1992)

Distribution & Notes:

  • Global : Species 1 or 2, Africa
  • Southern Africa : Species 1: Podranea ricasoliana (Tanfani) Sprague, from Port St Johns (Eastern Cape); possibly conspecific with P. brycei (N.E.Br.) Sprague, from Zimbabwe, Malawi and Mozambique

References:

  • DINIZ, M.A. 1988. Bignoniaceae . Flora zambesiaca 8,3
  • GENTRY, A.H. 1977. Bignoniaceae . Flora of Ecuador 7
  • GENTRY, A.H. 1992. Bignoniaceae - Part II (Tribe Tecomeae ). Flora neotropica, Monograph 25 (II)
  • SPRAGUE, T.A. 1904. Bignoniaceae . Flora capensis 4, 2
  • VERDOORN, I.C. 1961. Podranea ricasoliana & P. brycei . The Flowering Plants of Africa 34