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

Asphodelaceae - Alooideae - Poellnitzia Uitewaal

Description :

  • Small, herbaceous, caulescent perennials; offsetting at and near base; stems mostly erect, up to 250 mm long; roots succulent, terete
  • Leaves succulent, short, hard, cauline, usually four-ranked in spirally arranged rows, squarrose-imbricate, ovate-squamiform; apex triquetrous, pungent-acuminate; lower surface keeled towards tip; margins and keel apex minutely scabrid
  • Inflorescence a laxly flowered, simple, bracteate raceme, borne horizontally, up to 0.5 m long
  • Flowers relatively large, borne secundly erect, narrowly tubular, upper one-third slightly decurved
  • Perianth : tube red to orange, segments connivent, reduplicate-valvate, tips of segments scarcely separated, margins apically minutely crenulate-erose, yellow, upper tenth of segments dark green
  • Stamens subequal, filaments light green
  • Ovary with many axile ovules; style straight; stigma minute, included or exserted
  • Capsule erect, cylindric, apically retuse, chartaceous when dry
  • Seeds small, dark brown to black, irregularly angled, shortly winged
  • x = 7

Nomenclature:

  • Poellnitzia Uitewaal
    • Uitewaal: 61 (1940)
    • Hunt: t. 804 (1981)
    • Smith: 75 (1994)
    • Smith: 35 (1995)
    • Smith & Van Wyk: 97 (1995)
  • Haworthia Duval
    • Duval: 7 (1809) in part
    • Dyer: 929 (1976)

Distribution & Notes:

  • Southern Africa : Monotypic: Poellnitzia rubriflora Uitewaal, endemic to the Robertson Karoo in Western Cape

References:

  • DUVAL, H.A. 1809. Plantae succulentae in horto Alenconio . Gabon, Paris
  • DYER, R.A. 1976. The genera of southern African flowering plants , Vol. 2. Botanical Research Institute, Pretoria
  • HUNT, D.R. 1981. Poellnitzia rubriflora ( Liliaceae ). Curtis's Botanical Magazine 183
  • SMITH, G.F. 1994. Taxonomic history of Poellnitzia Uitewaal, a unispecific genus of Alooideae ( Asphodelaceae ). Haseltonia 2
  • SMITH, G.F. 1995. FSA contributions 3: Asphodelaceae / Aloaceae . 1028010 Poellnitzia . Bothalia 25
  • SMITH, G.F. & VAN WYK, B-E. 1995. Poellnitzia rubriflora . Flowering Plants of Africa 54
  • UITEWAAL, A.J.A. 1940. Een nieuw geslacht der Aloineae . Succulenta 22