e-Key <span id="jodit_selection_marker_1710323998175_023369207559096994" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - I<span id="jodit_selection_marker_1710323998176_08591914001359502" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>floga
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Gnaphalieae - Ifloga Cass.

Description:

  • Annual herbs with ericoid habit
  • Leaves alternate, sessile, often adaxially concave, tomentose on adaxial surface only (hair type B), eglandular; margin involute, entire
  • Capitula disciform, few together along axis
  • Involucral bracts papery, brownish, transparent, glabrous; stereome divided
  • Receptacle flat, epaleate
  • Marginal florets female, purple, filiform, pistillate, more than disc florets
  • Disc florets bisexual or rarely functionally male; corolla yellow, tube cylindric, lobes erect
  • Anthers ecalcarate, shortly tailed at base; apical appendage flat, as wide as thecae; endothecial tissue radial
  • Style bifid; style branches truncate with obtuse sweeping hairs apically; stigmatic surfaces separated
  • Cypselas small, oblong, with globose, myxogenic twin hairs; epidermis smooth
  • Pappus: 1 row of free, apically plumose, capillary bristles, basally with patent cilia
  • x = 7

Nomenclature:

  • Ifloga Cass.
    • Cassini: 142 (1819)
    • Hilliard: 296 (1981)
    • Anderberg: 153 (1991)
    • Anderberg: 359 (1994)
  • Comptonanthus B.Nord.
    • Nordenstam: 54 (1964)

Distribution & Notes:

  • Global: Species 6, mostly Africa, north to the Middle East, spreading to Canary Islands
  • Southern Africa: Species 4, widespread but absent from Botswana, Northern Province, Mpumalanga, Swaziland and KwaZulu-Natal

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
  • CASSINI, A.H.G. DE. 1819. Bulletin de la Société Philomatique de Paris September
  • HILLIARD, O.M. 1981. A revision of Ifloga in southern Africa, with comments on the northern hemisphere species. Botanical Journal of the Linnean Society 82
  • NORDENSTAM, R.B. 1964. Comptonanthus, a new genus of the Compositae with notes on Lasiopogon in South Africa. Journal of South African Botany 30

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