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

Colchicaceae - Ornithoglossum Salisb.

Description :

  • Glabrous geophytes
  • Corms deep-seated, tuberous, subglobose to ovoid, simple or with 1 or 2 lateral blunt lobes, firm, white inside, covered with thin yellowish or dark papery tunics, long, sheathed neck below ground
  • Stem erect, variable length, simple or branched, with sheathing leaves, terminating in a bracteate, racemose inflorescence
  • Leaves : lowest a membranous, sheathing, tubular cataphyll, without leaf blade, truncate or terminated by a short, ovate, usually mucronate tip; cataphyll sometimes worn away or undeveloped; upper leaves 2-12, alternate, distichous, erecto-patent to recurved, linear or linear-lanceolate to broadly lanceolate from a stem-sheathing base, tapering to acuminate, acute or mucronate tip, flat or undulate, parallel-veined, green or glaucous to greyish green
  • Inflorescence a few- to many-flowered raceme, oblong to pyramidal or corymbosely contracted; bracts leaf-like, simple; pedicels axillary, but basally coalescent with stem, erecto-patent to spreading or reflexed, often sharply recurved near apex
  • Flowers cernuous or nodding
  • Perianth regular or asymmetric, discrete, persistent, equal, all or some becoming patent to reflexed, with a basal tubular or flattened claw; blade flat, simple, lanceolate, acute or obtuse, various shades from yellow to almost black
  • Nectary a channel-, pouch- or pocket-like structure in the claw or between claw and blade, its upper margin simple or sometimes projecting as a tongue, or mouth-, ring- or funnel-shaped
  • Stamens free; filaments arising at base, arcuate, filiform, or swollen at or below middle; anthers dorsifixed, versatile, dehiscing extrorsely with longitudinal slits
  • Ovary globose to ovoid to oblong, sessile, simple; ovules few to many; styles 3, free, filiform, arcuate or spreading; stigma small, capitate or oblong and apical
  • Capsule globose to obovoid, nodding, coriaceous, dehiscing loculicidally
  • Seeds several, globose, firm, brown, smooth or rugose, with a distinct raphe
  • x = 12

Nomenclature:

  • Ornithoglossum Salisb.
    • Salisbury: text to t. 54 (1806)
    • Baker: 524 (1897)
    • Leinfellner: 474 (1960)~(Page number suspect - No access to the publication)
    • Sölch et al.: 62 (1970)
    • Nordenstam: 1 (1982)

Distribution & Notes:

  • Global : Species 8, tropical and southern Africa
  • Southern Africa : All countries and provinces, except Swaziland, KwaZulu-Natal and Lesotho
    • Poisonous to stock

References:

  • BAKER, J.G. 1897. Liliaceae . Flora capensis 6
  • LEINFELLNER, W. 1960. Zur Kenntnis des Monokotyledonen-Perigons 2. Die Perigonblätter von Dipidax . Österreichische Botanische Zeitschrift 107
  • NORDENSTAM, B. 1982. A monograph of the genus Ornithoglossum ( Liliaceae ). Opera Botanica 64
  • SALISBURY, R.A. 1806. Ornithoglossum glaucum . In W. Hooker, The paradisus londinensis . London
  • SÖLCH, A., ROESSLER, H. & MERXMÜLLER, H. 1970. Liliaceae . Prodromus einer Flora von Südwestafrika 147