e-Key <span id="jodit_selection_marker_1705918194850_06531770936202341" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - A<span id="jodit_selection_marker_1705918194850_19210199482117307" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>llium
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Alliaceae - Allium L.

Description:

  • Bulbous herbs; bulbs enclosed in membranous scales, with onion-smell, bearing copious fleshy roots
  • Leaves evergreen or deciduous, distichous, many, linear, smooth, firm, acute, entire, sheathing central, long, naked, stout scape
  • Inflorescence umbellate, many-flowered, sometimes with bulbils, carried above leaves, enveloped by 1 or 2 green or scarious, persistent or caducous, spathes
  • Flowers relatively small, usually very many and showy, pedicels firm, erect, spreading or cernuous
  • Perianth: lobes equal in length, 1-nerved, cylindric to campanulate, free or forming a short tube, deciduous, splitting sideways, erect or spreading, deep to light blue or white, chartaceous, persistent
  • Stamens arising from within perianth tube, loosely connivent, declinate, shorter or longer than perianth lobes, somewhat unequal; anthers small, dorsifixed
  • Ovary ovoid or oblong, with 2-14 ovules per locule; style filiform, semipersistent; stigma apical, small; nectaries in septa of ovary
  • Fruit globose
  • Seeds 1-4 per locule, flattened, irregularly angled
  • x = 7, 8

Nomenclature:

  • Allium L.
    • Linnaeus: 294 (1753)
    • Baker: 407 (1897)
    • De Wilde-Duyfjes: 75 (1976)

Distribution & Notes:

  • Global: Species ± 550, mainly northern hemisphere, including cultivated edible plants like *Allium cepa L. (Onion) and *A. sativum L. (Garlic)
  • Southern Africa: Species 1: Allium dregeanum Kunth, Mpumalanga, Free State, Northern, Western and Eastern Cape, although there is some doubt whether it is of true regional origin

References:

  • BAKER, J.G. 1897. Alliaceae. Flora capensis 6
  • DE WILDE-DUYFJES, B.E.E., 1976. A revision of the genus Allium L. (Liliaceae) in Africa. Belmontia 7
  • LINNAEUS, C. 1753. Species plantarum. Laurentius Salvius, Stockholm