e-Key <span id="jodit_selection_marker_1710247303847_8841562701786445" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Hypericoph<span id="jodit_selection_marker_1710247303847_9471661738705821" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>yllum
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Helenieae - Hypericophyllum Steetz

Description:

  • Perennial herbs, pilose
  • Leaves opposite, shortly petiolate or sessile, blade elliptic to broadly elliptic or oblanceolate, entire to undulate margin, glabrous or pubescent
  • Capitula discoid, with many florets, solitary at ends of branches; peduncles long, usually thickened towards apex
  • Involucre broadly turbinate-campanulate; bracts in 3-5 rows; outer row ± broadly ovate, ± striate; inner row longer and narrower
  • Receptacle convex, epaleate
  • Florets bisexual
  • Corolla orange or reddish orange; tube widening gradually from base, deeply 5-lobed at apex
  • Anthers with base obtuse; appendage narrowly ovate, exserted
  • Style glabrous; branches obtuse or truncate, papillate outside
  • Cypselas narrowly obpyramidal to narrowly turbinate, longitudinally ribbed, sometimes 4- or 5-angled, glabrous, hirsute or strigose
  • Pappus of many setae, in 1 row, terete, uncinate or sometimes with few straight setae, usually with narrow membranous, ± fimbriate lateral wings in lower third

Nomenclature:

  • Hypericophyllum Steetz
    • Steetz: 498 (1864)
    • Pope: 104 (1975)
    • Karis & Ryding: 539 (1994)

Distribution & Notes:

  • Global: Species 7, tropical Africa
  • Southern Africa: Species 1: Hypericophyllum elatum (O.Hoffm.) N.E.Br., Northern Province

References:

  • KARIS, P.O. & RYDING, O. 1994. Tribes Helenieae and Heliantheae. In K. Bremer, Asteraceae, cladistics and classification. Timber Press, Portland, Oregon
  • POPE, G.V. 1975. The Compositae of the Flora zambesiaca area, 6 - Helenieae. Kirkia 10
  • STEETZ, J. 1864. Compositae. In W. Peters. Naturwissenschaftliche Reise nach Mossambique (Botanik) Vol. 6. Georg Reimer, Berlin