e-Key <span id="jodit_selection_marker_1710153275083_6993429926534747" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Gymnope<span id="jodit_selection_marker_1710153275083_597183544886168" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ntzia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Anthemideae - Gymnopentzia Benth.

Description:

  • Shrubs, erect or decumbent
  • Leaves opposite, connate and sheathing at base, linear, bifurcate or undivided, glabrous or pilose
  • Capitula discoid, small, in dense terminal corymbs, several- to many-flowered
  • Involucre broadly campanulate; bracts in few rows, ciliate
  • Receptacle flat or slightly convex, epaleate or with occasional paleae
  • Disc florets bisexual, fertile; corolla yellow, tubular below, campanulate above, glandular, with 5 ovate lobes
  • Anthers ecalcarate and ecaudate; with oblong, apical appendage; endothecial tissue polarised
  • Style branches oblong, truncate, penicillate
  • Cypselas ± cylindric, 10-ribbed, long-papillose
  • Pappus 0

Nomenclature:

  • Gymnopentzia Benth.
    • Bentham: 537 (1873)
    • Hilliard & Burtt: 9 (1971)
    • Hilliard: 362 (1977)
    • Källersjö: 538 (1985)
    • Bremer & Humphries: 95 (1993)
    • Bremer: 448 (1994)

Distribution & Notes:

  • Southern Africa: Monotypic: Gymnopentzia bifurcata Benth., endemic, mountains of Mpumalanga, Free State, KwaZulu-Natal, Lesotho and Eastern Cape

References:

  • BENTHAM, G. 1873. Compositae. In G. Bentham & J.D. Hooker, Genera Plantarum 2. Lovell Reeve & Co., London
  • BREMER, K. 1994. Asteraceae, cladistics & classification. Timber Press, Portland, Oregon
  • BREMER, K. & HUMPHRIES, C. 1993. Generic monograph of the Asteraceae-Anthemideae. Bulletin of the Natural History Museum, Botany Series 23
  • HILLIARD, O.M. 1977. Compositae in Natal. University of Natal Press, Pietermaritzburg
  • HILLIARD, O.M. & BURTT, B.L. 1971. Notes on some plants of southern Africa chiefly from Natal. Notes from the Royal Botanic Garden Edinburgh 31
  • KÄLLERSJÖ, M. 1985. Fruit structure and generic delimitation of Athanasia (Asteraceae-Anthemideae) and related South African genera. Nordic Journal of Botany 5

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