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

Asteraceae - Anthemideae - Schistostephium Less.

Description :

  • Shrubs, subshrubs or perennial herbs, often aromatic, silky villous, pubescent or glabrate
  • Leaves alternate, pinnatisect, lobed, dentate or occasionally entire
  • Capitula disciform or discoid, in terminal corymbs, rarely solitary, on long peduncles
  • Involucre campanulate or subglobose; bracts in several rows
  • Receptacle convex or ovoid-conical, epaleate or rarely with few marginal paleae
  • Marginal florets female, fertile, generally stalked; corolla tubular, compressed, 3- or 4-toothed; or filiform, shorter than style, 2- or 3-fid; or scarcely developed
  • Disc florets bisexual, fertile, or inner functionally male; corolla tubular, somewhat compressed or bluntly 4-angled, sometimes dilated above, 4-toothed
  • Anthers ecalcarate and ecaudate, with suborbicular or ovate apical appendage
  • Style branches linear, truncate, minutely penicillate
  • Cypselas oblong-obovate, somewhat compressed or angled in female florets; in disc florets somewhat compressed, 3- or 4-angled, sometimes keeled or narrowly winged; glabrous or hairy, sometimes glandular
  • Pappus 0

Nomenclature:

  • Schistostephium Less.
    • Lessing: 251 (1832)
    • Harvey: 168 (1865)
    • Hutchinson: 99 (1916)
    • Hilliard: 357 (1977)
    • Bremer & Humphries: 160 (1993)
    • Bremer: 477 (1994)
  • Peyrousea DC.
    • Candolle: 76 (1838)
    • Bremer: 493 (1977)

Distribution & Notes:

  • Global : Species 12, south-tropical Africa
  • Southern Africa : Species 9, Northern Province, North-West, Gauteng, Mpumalanga, Swaziland, Free State, KwaZulu-Natal, Eastern Cape and eastern part of Western Cape

References:

  • BREMER, K. 1977. The genus Peyrousea ( Compositae ). Botaniska Notiser 130
  • 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
  • CANDOLLE, A.P. DE. 1838. Compositae . Prodromus 6. Treuttel & Würtz, Paris
  • HARVEY, W.H. 1865. Compositae . Flora capensis 3
  • HILLIARD, O.M. 1977. Compositae in Natal . University of Natal Press, Pietermaritzburg
  • HUTCHINSON, J. 1916. Notes on African Compositae . Kew Bulletin 1916
  • LESSING, C.F. 1832. Synopsis generum Compositarum . Duncker & Humblot, Berlin