e-Key v3 - Hugonia
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Linaceae - Hugonia L.

Description :

  • Small trees, shrubs, lianes with recurved woody tendrils (usually in subopposite pairs), or rarely shrublets
  • Leaves petiolate, alternate, entire, crenate or toothed, sometimes with domatia in the nerve axils and with densely reticulate, tertiary venation; stipules pinnatifid or palmatifid, often caducous
  • Flowers solitary, in pairs or in few-flowered cymes, axillary or occasionally terminal, often trimorphically heterostylous
  • Sepals 5, usually unequal, persistent
  • Petals 5, shortly clawed, usually yellow
  • Stamens 5 + 5, all fertile, with filaments united into basal cup
  • Ovary 4-10-locular, alternate ones sterile; styles 2-5, free or rarely partly united; stigmas capitate, grooved
  • Fruit a drupe, with 3-5 or fewer seeds; not more than 1 per locule
  • Seeds smooth, flattened, endospermic
  • x = 6 (polyploidy)

Nomenclature:

  • Hugonia L.
    • Linnaeus: 675 (1753)
    • Robson: 91 (1963)
    • Robson & Gonçalves: 4 (1969)

Distribution & Notes:

  • Global : Species 35, mainly in Old World tropics
  • Southern Africa : Species 1: Hugonia orientalis Engl., Mpumalanga (Lowveld)

References:

  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm
  • ROBSON, N.K.B. 1963. Linaceae . Flora zambesiaca 2
  • ROBSON, N.K.B. & GONÇALVES, M.L. 1969. Hugonia L. Flora de Moçambique 29