e-Key <span id="jodit_selection_marker_1710497785421_5745444315541379" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Lac<span id="jodit_selection_marker_1710497785422_014287722296229655" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>hnaea
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Thymelaeaceae - Lachnaea L.

Description:

  • Shrubs or shrublets
  • Leaves decussate or alternate, sessile or subsessile, entire, amphistomatic or epistomatic
  • Flowers sessile or pedicelled, solitary and terminal or in terminal, indeterminate capitula, or bracteate or ebracteate umbels
  • Calyx: hypanthium circumscissile, portion above plane of circumscission cylindrical to cyathiform, rarely cyathiform with a sigmoid curve at base, scales present below stamen attachment, portion below plane of circumscission ovoid to obovoid
  • Sepals 4, almost equal to distinctly unequal, petaloid
  • Petals 0
  • Stamens 8 in 2 whorls of 4, outer whorl exserted, episepalous or arising from or near rim of hypanthium, inner whorl exserted or semi-exserted, arising from rim to thirdway down hypanthium; filaments variable in length; anthers basifixed, introrse, ellipsoid to oblate-spheroid
  • Scales 8, exserted or enclosed, in single row below antipetalous stamens
  • Disc 0
  • Ovary sessile, 1-locular, with single ovule; style arising laterally; stigma either penicillate or conical or capitate and papillate or capitate and elongate-papillate
  • Fruit an achene, enclosed in persistent base of hypanthium
  • x = 9

Nomenclature:

  • Lachnaea L.
    • Linnaeus: 560 (1753)
    • Wright: 18 (1915)
    • Beyers & Van der Walt: 65 (1995)
    • Beyers: 45 (1997)
  • Cryptadenia Meisn.
    • Meisner: 404 (1840)
    • Wright: 15 (1915)

Distribution & Notes:

  • Southern Africa: Species 30, Northern, Western and Eastern Cape; greatest diversity in Western Cape

References:

  • BEYERS, J.B.P. 1997. Thymelaeaceae. New combinations in Lachnaea. Bothalia 27
  • BEYERS, J.B.P. & VAN DER WALT, J.J.A. 1994. The generic delimitation of Lachnaea and Cryptadenia (Thymelaeaceae). Bothalia 25
  • LINNAEUS, C. 1753. Species plantarum. Laurentius Salvius, Stockholm
  • MEISNER, C.F. 1840. Synopsis Thymelaearum, Polygonearum et Begoniarum Africae australis, imprimus a cl. J.J. Drège lectarum. Linnaea 14
  • WRIGHT, C.H. 1915. Thymelaeaceae. Flora capensis 5,2