e-Key <span id="jodit_selection_marker_1709033643434_642501070740541" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Disp<span id="jodit_selection_marker_1709033643434_30250983475521176" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>arago
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Gnaphalieae - Disparago Gaertn.

Description:

  • Shrublets or shrubs, usually profusely, sympodially branched, larger plants dense, erect or cushion-like and spreading; new shoots developing from below terminal inflorescences of previous season
  • Leaves alternate, small, filiform, oblong or obovate; adaxial surface villous, hairs unicellular; margins entire, involute; apex mucronate, apiculate or obtuse
  • Synflorescence terminal with capitula solitary, in small clusters or in very dense, globose, subglobose or cylindrical aggregations
  • Capitula 1-10-flowered; individual heads radiate or discoid, composed of strap-shaped and/or tubular flowers
  • Involucral bracts in 1-4 rows, chaffy, lacking a distinct stereome, broadly or narrowly cymbiform; apices acute or acuminate; margins entire, sometimes undulate or with clavate outgrowths
  • Receptacle small, conical
  • Ray florets 3-lobed, female or sterile, white or pink, strap-shaped
  • Disc florets 5-lobed, lobes erect or spreading star-like, male or bisexual, white or pink
  • Anthers apically lanceolate, basally tailed
  • Style bifid
  • Nectary present in tubular flowers
  • Cypselas fertile or sterile; small, symmetrical, with 5 or 10 vascular bundles, surface glabrous, puberulous or villous
  • Pappus present or 0, caducous or persistent, of 3-15(-20) plumose or barbed bristles, free or connate in a ring or tube at base
  • x = 9 (1 report)

Nomenclature:

  • Disparago Gaertn.
    • Gaertner: 463, t. 173 (1791)
    • Harvey: 277 (1865)
    • Levyns: 95 (1936)
    • Anderberg: 77 (1991)
    • Koekemoer: 197 (1993)
    • Anderberg: 331 (1994)
  • Wigandia Neck.
    • Necker: 95 (1790) not of Kunth
    • Lessing: 362 (1832)

Distribution & Notes:

  • Southern Africa: Species 9, mainly in the fynbos of the Western Cape; inland boundaries of its distribution are along the mountains bordering the Karoo or the transition areas between fynbos and other biomes; Disparago tortilis (DC.) Sch.Bip., is more widely distributed and spreads along the south and east coast to Umtamvuna in KwaZulu-Natal, where it occurs in relict fynbos

References:

  • ANDERBERG, A.A. 1991. Taxonomy and phylogeny of the tribe Gnaphalieae (Asteraceae). Opera Botanica 104
  • ANDERBERG, A.A. 1994. Tribes Inuleae, Plucheeae, Gnaphalieae. In K. Bremer, Asteraceae, cladistics and classification. Timber Press, Portland, Oregon
  • GAERTNER, J. 1791. De fructibus et seminibus plantarum 2. Academia Carolina, Stuttgart
  • HARVEY, W.H. 1865. Compositae. Flora capensis 3
  • KOEKEMOER, M. 1993. Synopsis of the genus Disparago (Asteraceae). Bothalia 23,2
  • LESSING, C.F. 1832. Synopsis generum Compositarum. Duncker & Humblot, Berlin
  • LEVYNS, M.R. 1936. A revision of Disparago Gaertn. Journal of South African Botany 2
  • NECKER, N.J. 1790. Elementa botanica. Societas Typographica, Neuwied