e-Key v<span id="jodit_selection_marker_1710510835744_16334004616460285" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>3 - *Li<span id="jodit_selection_marker_1710510835744_7862540551576451" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>naria
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Scrophulariaceae - Scrophularioideae - Antirrhineae - *Linaria Mill.

Description:

  • Annual or perennial herbs
  • Leaves usually verticillate below, alternate above, narrow, sessile, entire
  • Flowers in terminal, bracteate racemes or spikes, rarely solitary in leaf axils
  • Calyx deeply 5-lobed, equal or unequal, posterior lobe usually longest, very rarely shortest
  • Corolla tubular, bilabiate, 5-lobed, usually glabrous except for palate; tube ± cylindrical, with conical or cylindrical spur on anterior side at base; lips ± equal, posterior lip 2-lobed, ± patent, exterior in bud; anterior lip 3-lobed, spreading to patent with prominent, pubescent basal palate occluding corolla mouth, or only partly so
  • Stamens 4, didynamous, included, adjacent pairs of anthers marginally coherent; filaments filiform; anthers bithecate; thecae oblong, parallel; staminode minute
  • Ovary equally or unequally bilocular; ovules many; style simple or bifid; stigma various
  • Fruit an oblong, ovoid or globose capsule, walls papery, septum erect, straight; locules dehiscing by several irregular, meridional fissures from apex towards base
  • Seeds oblong-orbicular to suborbicular, winged, tuberculate
  • x = 6 (7, 9, 13) (B-chromosomes - 1 report, polyploidy)

Nomenclature:

  • *Linaria Mill.
    • Miller: [791] (1754)
    • Hiern: 203 (1904)
    • Chater et al.: 226 (1972)
    • Wells et al.: 332 (1986)
    • Sutton: 260, 272 (1988)

Distribution & Notes:

  • Global: Species ± 150, temperate Europe, Asia (not SE) and North Africa; widely naturalised in temperate regions
  • Southern Africa: Species 1: *Linaria vulgaris Mill., scattered as a weed mainly in eastern half (Gauteng, Mpumalanga, Free State, KwaZulu-Natal, Western and Eastern Cape); others occur as sporadic garden escapes

References:

  • CHATER, A.O., VALDÉS, B. & WEBB, D.A. 1972. Linaria Mill. Flora europaea 3
  • HIERN, W.P. 1904. Scrophulariaceæ. Flora capensis 4,2
  • MILLER, P. 1754. The gardener's dictionary, abridged edn 4, 2. Rivington, London
  • SUTTON, D.A. 1988. A revision of the tribe Antirrhineae: 260, 272. British Museum (Natural History), London
  • WELLS, M.J., BALSINHAS, A.A., JOFFE, H., ENGELBRECHT, V.M., HARDING, G. & STIRTON, C.H. 1986. A catalogue of problem plants in southern Africa. Memoirs of the Botanical Survey of South Africa No. 53