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

Asteraceae - Calenduleae - Chrysanthemoides Fabr.

Description :

  • Shrubs, shrublets or small trees, sometimes spinescent, glabrous or ± cobwebby
  • Leaves alternate, mostly obovate and narrowed into petiole, entire or toothed
  • Capitula radiate, shortly pedunculate, usually few together or solitary, many-flowered
  • Involucre broadly campanulate; bracts in 2-4 rows, free, linear to ovate-lanceolate
  • Receptacle ± convex, glabrous or pubescent, epaleate
  • Ray florets female, fertile; corolla yellow, tube sometimes rudimentary, with ± oblong-elliptic, 3-toothed lamina up to 4½ × its length
  • Staminodes sometimes present
  • Style linear, with linear, obtuse branches
  • Fruit a drupe, shiny black or blue; endocarp hard, globose to obovoid or subcylindric, smooth or with ± raised nerves
  • Pappus 0
  • Disc florets functionally male; corolla tube funnel-shaped, glandular-hairy, with 5 lanceolate lobes
  • Anthers ecalcarate, shortly caudate; with ovate, apical appendage; endothecial tissue polarised
  • Style terete, minutely bifid
  • Pappus 0
  • x = 9 (10 - 1 report) (high polyploidy)

Nomenclature:

  • Chrysanthemoides Fabr.
    • Fabricius: 144 (1759)
    • Tournefort ex Medikus: 159 (1789)
    • Norlindh: 367 (1943)
    • Nordenstam: 373 (1994)
  • Osteospermum L. in part
    • Harvey: 433 (1865)

Distribution & Notes:

  • Global : Species 2; extending into tropical East Africa
  • Southern Africa : Species 2: Chrysanthemoides incana (Burm.f.) Norl. and C. monilifera (L.) Norl., widespread but absent from Botswana, North-West and Gauteng

References:

  • FABRICIUS, P.C. 1759. In Enumeratio methodica plantarum . Edn 1. Drimborn, Helmstedt
  • HARVEY, W.H. 1865. Compositae . Flora capensis 3
  • MEDIKUS, F.K. 1789. Philosophische Botanik Heft 1. Hof- und Akademische Buchhandlung, Mannheim
  • NORDENSTAM, B. 1994. Tribe Calenduleae . In K. Bremer, Asteraceae , cladistics and classification . Timber Press, Oregon
  • NORLINDH, T. 1943. Studies in the Calenduleae . 1. Monograph of the genera Dimorphotheca , Castalis , Osteospermum , Gibbaria and Chrysanthemoides . Gleerup, Lund