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

Brassicaceae - Heliophileae - Thlaspeocarpa C.A.Sm.

Description :

  • Annual herbs
  • Leaves pectinately 3-9-lobed, rarely entire
  • Inflorescences terminal, ebracteate racemes
  • Sepals spreading, inner 2 slightly saccate
  • Petals obovate-cuneate, hardly clawed
  • Stamens 6, each of 2 short filaments with small appendage
  • Nectaries 2, large, biprismatic, one outside each short filament
  • Ovary elliptical, compressed, 2-locular, 1 locule usually sterile, other with 1 pendulous ovule, rarely 1 ovule in each cell; stigma capitate, subsessile
  • Fruit a subcircular silicula, compressed, discoid, pendulous, 1-seeded, apparently indehiscent; septum disappearing, fruit apparently 1-celled; valves 1-nerved
  • Seeds circular, broadly winged; cotyledons twice transversely folded

Nomenclature:

  • Thlaspeocarpa C.A.Sm.
    • Smith: 155 (1931)
    • Schulz: 401 (1936)
    • Phillips: 348 (1951)
    • Compton: 153 (1953)
    • Marais: 77 (1970)
  • Palmstruckia Sond.
    • Sonder: 35 (1860)
    • Marloth: 242 (1913)

Distribution & Notes:

  • Global : Species 2, Africa
  • Southern Africa : Species 2: Thlaspeocarpa capensis (Sond.) C.A.Sm., endemic to Western Cape (Calvinia, Sutherland and Worcester districts) and T. namaquensis Marais, endemic to Namaqualand

References:

  • COMPTON, R.H. 1953. Silicularia , a new genus of Cruciferae , with notes on related genera. Journal of South African Botany 19
  • MARAIS, W. 1970. Cruciferae . Flora of southern Africa 13
  • MARLOTH, R. 1913. Cruciferae . The flora of South Africa 1. Darter, Cape Town
  • PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2. Memoirs of the Botanical Survey of South Africa No. 25
  • SCHULZ, O.E. 1936. Cruciferae . Die natürlichen Pflanzenfamilien II,17b
  • SMITH, C.A. 1931. Palmstruckia of the Flora capensis. Kew Bulletin 1931
  • SONDER, O.W. 1860. Crucifereae . Flora capensis 1