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

Lamiaceae - Nepetoideae - Ocimeae - Hyptidinae - *Hyptis Jacq.

Description :

  • Annual or perennial herbs or soft shrubs
  • Leaves crenate-dentate to serrate
  • Inflorescences terminal on main or lateral branches; verticils several to many-flowered, crowded; bracts leafy below, becoming smaller towards apex; bracteoles linear to ovate
  • Calyx tubular-campanulate, ribbed, subequally 5-toothed; tube somewhat accrescent in fruit; teeth subulate
  • Corolla small, 5-lobed, ± bilabiate; tube slightly exceeding calyx; lowest lobe saccate
  • Stamens 4, didynamous, declinate, arising in corolla throat; filaments linear, free; anthers 1-thecous, scarcely exserted
  • Style with stigma shortly 2-fid or entire
  • Nutlets smooth or punctate-rugulose
  • x = 8 (7) (high polyploidy)

Nomenclature:

  • *Hyptis Jacq.
    • Jacquin: 101 (1787)
    • Bentham: 64 (1833)
    • Bentham: 85 (1848)
    • Bentham: 1178 (1876)
    • Briquet: 333 (1897)
    • Baker: 447 (1900)
    • Cooke: 297 (1910)
    • Codd: 117 (1985)
  • Mesosphaerum P.Browne
    • Browne: 257 (1756)
    • Kuntze: 525 (1891)
  • Bystropogon L'Hér.
    • L'Héritier: 19 (1789)

Distribution & Notes:

  • Global : Species ± 300, in warm and tropical regions of America and Africa
  • Southern Africa : Species 3: Hyptis pectinatus (L.) Poit. is apparently indigenous and is found in Botswana, the other 2 are from tropical America and naturalised

References:

  • BAKER, J.G. 1900. Verbenaceae , Labiatae . Flora of tropical Africa 5
  • BENTHAM, G. 1832-1836. Labiatarum genera et species . James Ridgeway and Sons, Piccadilly
  • BENTHAM, G.1848. Labiatae . In A. de Candolle, Prodromus 12. Victor Masson, Paris
  • BENTHAM, G. 1876. Labiatae . In G. Bentham & J.D. Hooker, Genera plantarum 2. Lovell Reeve & Co., Covent Garden
  • BRIQUET, J. 1895-1897. Labiatae . Die natürlichen Pflanzenfamilien 4,3a
  • BROWNE, P. 1756. Mesosphaerum . The civil and natural history of Jamaica
  • CODD, L.E. 1985. Lamiaceae . Flora of southern Africa 28
  • COOKE, T. 1910. Labiatae . Flora capensis 5,1
  • JACQUIN, N.J. 1787. Collecteana 1. Vienna
  • KUNTZE, C.E.O. 1891. Labiatae . Revisio generum plantarum . Dulau & Co., London
  • L'HÉRITIER, C.L. 1789. Bystropogon . Sertum anglicum . P.-F. Didot (typ.), Paris