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

Scrophulariaceae - Scrophularioideae - Cheloneae - Oftia Adans.

Description :

  • Dwarf shrubs or shrubs, glabrous, villous or sometimes viscid-pubescent; branches decumbent to ascending
  • Leaves usually opposite or somewhat verticillate in basal parts, sometimes alternate above, closely set, sessile or with narrowed base, margins revolute and variously closely dentate or serrate, bases ± decurrent into ridges on young stems
  • Flowers solitary in axils of upper leaves, pedicellate or subsessile, sometimes bracteolate; axis may continue to grow after flowering
  • Calyx deeply and ± regularly 5-lobed; lobes linear to subulate with stalked glands or glabrous
  • Corolla 5-lobed and ± regular; tube cylindrical, often a little dilated at throat, villous inside in upper half; lobes much shorter than tube, subequal, imbricate, posterior lobes exterior in bud
  • Stamens 4, subequal, included; filaments short, filiform, arising ± in middle of corolla tube; anthers bithecate, narrowly oblong; thecae parallel
  • Nectary 0
  • Ovary bilocular, with usually 4 pendulous ovules in each locule; style short, well included; stigma somewhat thickened, oblique
  • Fruit a small, globose, succulent drupe
  • Seeds hard, somewhat rugose

Nomenclature:

  • Oftia Adans.
    • Adanson: 199 (1763)
    • Rolfe: 93 (1901) under Myoporineae
    • Dahlgren & Rao: 451 (1971) under Scrophulariaceae
    • Takhtajan: 458 (1997) under Oftiaceae

Distribution & Notes:

  • Southern Africa : Species 3, Northern Cape (Namaqualand) southwards to Western Cape (about Gansbaai) and east along mountains to Riversdale, and perhaps to Eastern Cape (Uitenhage)

References:

  • ADANSON, M. 1763. Familles des plantes 2. Vincent, Paris
  • DAHLGREN, R. & RAO, V.S. 1971. The genus Oftia Adans. and its systematic position. Botaniska Notiser 124
  • ROLFE, R.A. 1901. Myoporineæ & Selagineæ . Flora capensis 5,1
  • TAKHTAJAN, A. 1997. Diversity and classification of flowering plants . Columbia University Press, New York